| <!doctype html><html lang=en-US dir=ltr class="docs-wrapper plugin-docs plugin-id-default docs-version-current docs-doc-page docs-doc-id-guide/java/serialization_index" data-has-hydrated=false><head><meta charset=UTF-8><meta name=generator content="Docusaurus v3.10.1"><title data-rh=true>Java Serialization Guide | Apache Fory™</title><meta data-rh=true name=viewport content="width=device-width, initial-scale=1.0"/><meta data-rh=true property=og:url content=https://fory.apache.org/docs/next/guide/java/ /><meta data-rh=true property=og:locale content=en_US /><meta data-rh=true property=og:locale:alternate content=zh_CN /><meta data-rh=true name=docusaurus_locale content=en-US /><meta data-rh=true name=docsearch:language content=en-US /><meta data-rh=true http-equiv=Content-Security-Policy content="frame-src 'self' https://ghbtns.com/;"/><meta data-rh=true property=og:image content=https://fory.apache.org/img/logo.png /><meta data-rh=true property=og:image:width content=1500 /><meta data-rh=true property=og:image:height content=1500 /><meta data-rh=true name=twitter:card content=summary_large_image /><meta data-rh=true name=twitter:image content=https://fory.apache.org/img/logo.png /><meta data-rh=true name=docusaurus_version content=current /><meta data-rh=true name=docusaurus_tag content=docs-default-current /><meta data-rh=true name=docsearch:version content=current /><meta data-rh=true name=docsearch:docusaurus_tag content=docs-default-current /><meta data-rh=true property=og:title content="Java Serialization Guide | Apache Fory™"/><meta data-rh=true name=description content="Apache Fory™ provides blazingly fast Java object serialization with JIT compilation and zero-copy techniques. Java supports both xlang mode and native mode. Xlang mode is the default cross-language wire format and uses compatible schema evolution. Native mode is the Java-only wire format for same-language object serialization, JDK serialization replacement behavior, framework replacement, and Java-native object graph features."/><meta data-rh=true property=og:description content="Apache Fory™ provides blazingly fast Java object serialization with JIT compilation and zero-copy techniques. Java supports both xlang mode and native mode. Xlang mode is the default cross-language wire format and uses compatible schema evolution. Native mode is the Java-only wire format for same-language object serialization, JDK serialization replacement behavior, framework replacement, and Java-native object graph features."/><link data-rh=true rel=icon href=/img/favicon.ico /><link data-rh=true rel=canonical href=https://fory.apache.org/docs/next/guide/java/ /><link data-rh=true rel=alternate href=https://fory.apache.org/docs/next/guide/java/ hreflang=en-US /><link data-rh=true rel=alternate href=https://fory.apache.org/zh-CN/docs/next/guide/java/ hreflang=zh-CN /><link data-rh=true rel=alternate href=https://fory.apache.org/docs/next/guide/java/ hreflang=x-default /><script data-rh=true type=application/ld+json>{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://fory.apache.org/docs/next/guide/java/","name":"Java","position":1}]}</script><link rel=alternate type=application/rss+xml href=/blog/rss.xml title="Apache Fory™ RSS Feed"><link rel=alternate type=application/atom+xml href=/blog/atom.xml title="Apache Fory™ Atom Feed"><script type=text/javascript>"fury.apache.org"===window.location.host&&(window.location.href="https://fory.apache.org"),function(){for(var o=window.location.pathname,a=["guide","introduction","start"],n=0;n<a.length;n++){var t=a[n],i=RegExp("^((?:/[a-z]{2}-[A-Z]{2})?/docs(?:/(?:next|[0-9]+.[0-9]+))?)/docs/"+t+"(/.*)?$"),c=o.match(i);if(c){var r=c[1]+"/"+t+(c[2]||"");window.location.replace(r+window.location.search+window.location.hash);return}}}()</script><link rel=stylesheet href=/assets/css/styles.3a1edaa1.css /><script src=/assets/js/runtime~main.605b11b1.js defer></script><script src=/assets/js/main.283fea4b.js defer></script></head><body><svg style="display: none;"><defs> |
| <symbol id=theme-svg-external-link viewBox="0 0 24 24"><path fill=currentColor d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"/></symbol> |
| </defs></svg> |
| <script>!function(){var t=function(){try{return new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{return window.localStorage.getItem("theme")}catch(t){}}();document.documentElement.setAttribute("data-theme",t||"light"),document.documentElement.setAttribute("data-theme-choice",t||"light")}(),function(){try{for(var[t,e]of new URLSearchParams(window.location.search).entries())if(t.startsWith("docusaurus-data-")){var a=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}()</script><div id=__docusaurus><div role=region aria-label="Skip to main content"><a class=skipToContent_fXgn href=#__docusaurus_skipToContent_fallback>Skip to main content</a></div><nav aria-label=Main class="theme-layout-navbar navbar navbar--fixed-top"><div class=navbar__inner><div class="theme-layout-navbar-left navbar__items"><button aria-label="Toggle navigation bar" aria-expanded=false class="navbar__toggle clean-btn" type=button><svg width=30 height=30 viewBox="0 0 30 30" aria-hidden=true><path stroke=currentColor stroke-linecap=round stroke-miterlimit=10 stroke-width=2 d="M4 7h22M4 15h22M4 23h22"/></svg></button><a class=navbar__brand href=/><div class=navbar__logo><img src=/img/fory-logo-light.png alt="Apache Fory™ Logo" class="themedComponent_mlkZ themedComponent--light_NVdE"/><img src=/img/fory-logo-dark.png alt="Apache Fory™ Logo" class="themedComponent_mlkZ themedComponent--dark_xIcU"/></div><b class="navbar__title text--truncate"></b></a><a aria-current=page class="navbar__item navbar__link navbar__link--active" href=/docs/next/introduction/overview>Docs</a><a class="navbar__item navbar__link" href=/docs/next/specification/xlang_serialization_spec>Specification</a><a class="navbar__item navbar__link" href=/docs/next/community/>Community</a><a class="navbar__item navbar__link" href=/user>Users</a><a class="navbar__item navbar__link" href=/download>Download</a><a class="navbar__item navbar__link" href=/blog>Blog</a></div><div class="theme-layout-navbar-right navbar__items navbar__items--right"><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a href=# aria-haspopup=true aria-expanded=false role=button class=navbar__link>ASF</a><ul class=dropdown__menu><li><a href=https://www.apache.org/ target=_blank rel="noopener noreferrer" class=dropdown__link>Foundation</a><li><a href=https://www.apache.org/licenses/ target=_blank rel="noopener noreferrer" class=dropdown__link>License</a><li><a href=https://www.apache.org/events/current-event.html target=_blank rel="noopener noreferrer" class=dropdown__link>Events</a><li><a href=https://privacy.apache.org/policies/privacy-policy-public.html target=_blank rel="noopener noreferrer" class=dropdown__link>Privacy</a><li><a href=https://www.apache.org/security/ target=_blank rel="noopener noreferrer" class=dropdown__link>Security</a><li><a href=https://www.apache.org/foundation/sponsorship.html target=_blank rel="noopener noreferrer" class=dropdown__link>Sponsorship</a><li><a href=https://www.apache.org/foundation/thanks.html target=_blank rel="noopener noreferrer" class=dropdown__link>Thanks</a><li><a href=https://www.apache.org/foundation/policies/conduct.html target=_blank rel="noopener noreferrer" class=dropdown__link>Code of Conduct</a></ul></div><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a class=navbar__link aria-haspopup=true aria-expanded=false role=button href=/docs/next/guide/java/>dev</a><ul class=dropdown__menu><li><a aria-current=page class="dropdown__link dropdown__link--active" href=/docs/next/guide/java/>dev</a><li><a class=dropdown__link href=/docs/guide/java/>1.3.0</a><li><a class=dropdown__link href=/docs/1.2.0/guide/java/>1.2.0</a><li><a class=dropdown__link href=/docs/1.1.0/guide/java/>1.1.0</a><li><a class=dropdown__link href=/docs/1.0.0/guide/java/>1.0.0</a><li><a class=dropdown__link href=/docs/0.17/guide/java/>0.17</a><li><a class=dropdown__link href=/docs/0.16/guide/java/>0.16</a><li><a class=dropdown__link href=/docs/0.15/guide/java/>0.15</a><li><a class=dropdown__link href=/docs/0.14/guide/java/>0.14</a><li><a class=dropdown__link href=/docs/0.13/introduction/overview>0.13</a><li><a class=dropdown__link href=/docs/0.12/introduction/overview>0.12</a><li><a class=dropdown__link href=/docs/0.11/introduction/overview>0.11</a><li><a class=dropdown__link href=/docs/0.10/introduction/overview>0.10</a></ul></div><a href=https://github.com/apache/fory target=_blank rel="noopener noreferrer" class="navbar__item navbar__link header-github-link" aria-label="GitHub repository"></a><div class="navbar__item dropdown dropdown--hoverable dropdown--right"><a href=# aria-haspopup=true aria-expanded=false role=button class=navbar__link><svg viewBox="0 0 24 24" width=20 height=20 aria-hidden=true class=iconLanguage_nlXk><path fill=currentColor d="M12.87 15.07l-2.54-2.51.03-.03c1.74-1.94 2.98-4.17 3.71-6.53H17V4h-7V2H8v2H1v1.99h11.17C11.5 7.92 10.44 9.75 9 11.35 8.07 10.32 7.3 9.19 6.69 8h-2c.73 1.63 1.73 3.17 2.98 4.56l-5.09 5.02L4 19l5-5 3.11 3.11.76-2.04zM18.5 10h-2L12 22h2l1.12-3h4.75L21 22h2l-4.5-12zm-2.62 7l1.62-4.33L19.12 17h-3.24z"/></svg>English</a><ul class=dropdown__menu><li><a href=/docs/next/guide/java/ target=_self rel="noopener noreferrer" class="dropdown__link dropdown__link--active" lang=en-US>English</a><li><a href=/zh-CN/docs/next/guide/java/ target=_self rel="noopener noreferrer" class=dropdown__link lang=zh-CN>简体中文</a></ul></div><div class="toggle_vylO colorModeToggle_DEke"><button class="clean-btn toggleButton_gllP toggleButtonDisabled_aARS" type=button disabled title="system mode" aria-label="Switch between dark and light mode (currently system mode)"><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP lightToggleIcon_pyhR"><path fill=currentColor d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP darkToggleIcon_wfgR"><path fill=currentColor d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"/></svg><svg viewBox="0 0 24 24" width=24 height=24 aria-hidden=true class="toggleIcon_g3eP systemToggleIcon_QzmC"><path fill=currentColor d="m12 21c4.971 0 9-4.029 9-9s-4.029-9-9-9-9 4.029-9 9 4.029 9 9 9zm4.95-13.95c1.313 1.313 2.05 3.093 2.05 4.95s-0.738 3.637-2.05 4.95c-1.313 1.313-3.093 2.05-4.95 2.05v-14c1.857 0 3.637 0.737 4.95 2.05z"/></svg></button></div><div class=navbarSearchContainer_Bca1><div class=navbar__search><span aria-label="expand searchbar" role=button class=search-icon tabindex=0></span><input id=search_input_react type=search placeholder=Loading... aria-label=Search class="navbar__search-input search-bar" disabled/></div></div></div></div><div role=presentation class=navbar-sidebar__backdrop></div></nav><div id=__docusaurus_skipToContent_fallback class="theme-layout-main main-wrapper mainWrapper_z2l0"><div class=docsWrapper_hBAB><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_sjWU" type=button></button><div class=docRoot_UBD9><aside class="theme-doc-sidebar-container docSidebarContainer_YfHR"><div class=sidebarViewport_aRkj><div class=sidebar_njMd><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_SIkG"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=true href=/docs/next/introduction/overview><span title=Introduction class=categoryLinkLabel_W154>Introduction</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/introduction/overview><span title=Overview class=linkLabel_WmDU>Overview</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/introduction/features><span title=Features class=linkLabel_WmDU>Features</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/introduction/benchmark><span title=Benchmark class=linkLabel_WmDU>Benchmark</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=true href=/docs/next/start/install><span title=Start class=categoryLinkLabel_W154>Start</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/start/install><span title=Install class=linkLabel_WmDU>Install</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-2 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/start/usage><span title=Usage class=linkLabel_WmDU>Usage</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret" role=button aria-expanded=false href=/docs/next/compiler/><span title="Schema IDL & Compiler" class=categoryLinkLabel_W154>Schema IDL & Compiler</span></a></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--sublist-caret menu__link--active" role=button aria-expanded=true href=/docs/next/guide/java/><span title=Guide class=categoryLinkLabel_W154>Guide</span></a></div><ul class=menu__list><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item"><div class="menu__list-item-collapsible menu__list-item-collapsible--active"><a class="categoryLink_byQd menu__link menu__link--sublist menu__link--active" aria-current=page tabindex=0 href=/docs/next/guide/java/><span title=Java class=categoryLinkLabel_W154>Java</span></a><button aria-label="Collapse sidebar category 'Java'" aria-expanded=true type=button class="clean-btn menu__caret"></button></div><ul class=menu__list><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/basic_serialization><span title="Basic Serialization" class=linkLabel_WmDU>Basic Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/xlang_serialization><span title="Xlang Serialization" class=linkLabel_WmDU>Xlang Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/native_serialization><span title="Native Serialization" class=linkLabel_WmDU>Native Serialization</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/configuration><span title=Configuration class=linkLabel_WmDU>Configuration</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/type_registration><span title="Type Registration" class=linkLabel_WmDU>Type Registration</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/schema_evolution><span title="Schema Evolution" class=linkLabel_WmDU>Schema Evolution</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/schema_metadata><span title="Schema Metadata" class=linkLabel_WmDU>Schema Metadata</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/static_generated_serializers><span title="Static Generated Serializers" class=linkLabel_WmDU>Static Generated Serializers</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/object_copy><span title="Object Copy" class=linkLabel_WmDU>Object Copy</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/compression><span title=Compression class=linkLabel_WmDU>Compression</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/custom_serializers><span title="Custom Serializers" class=linkLabel_WmDU>Custom Serializers</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/row_format><span title="Row Format" class=linkLabel_WmDU>Row Format</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/virtual_threads><span title="Virtual Threads" class=linkLabel_WmDU>Virtual Threads</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/graalvm_support><span title="GraalVM Support" class=linkLabel_WmDU>GraalVM Support</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/android_support><span title="Android Support" class=linkLabel_WmDU>Android Support</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/advanced_features><span title="Advanced Features" class=linkLabel_WmDU>Advanced Features</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/grpc_support><span title="gRPC Support" class=linkLabel_WmDU>gRPC Support</span></a><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-3 menu__list-item"><a class=menu__link tabindex=0 href=/docs/next/guide/java/troubleshooting><span title=Troubleshooting class=linkLabel_WmDU>Troubleshooting</span></a></ul><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/python/><span title=Python class=categoryLinkLabel_W154>Python</span></a><button aria-label="Expand sidebar category 'Python'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/rust/><span title=Rust class=categoryLinkLabel_W154>Rust</span></a><button aria-label="Expand sidebar category 'Rust'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/cpp/><span title=C++ class=categoryLinkLabel_W154>C++</span></a><button aria-label="Expand sidebar category 'C++'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/go/><span title=Go class=categoryLinkLabel_W154>Go</span></a><button aria-label="Expand sidebar category 'Go'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/javascript/><span title=JavaScript class=categoryLinkLabel_W154>JavaScript</span></a><button aria-label="Expand sidebar category 'JavaScript'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/csharp/><span title=C# class=categoryLinkLabel_W154>C#</span></a><button aria-label="Expand sidebar category 'C#'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/swift/><span title=Swift class=categoryLinkLabel_W154>Swift</span></a><button aria-label="Expand sidebar category 'Swift'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/dart/><span title=Dart class=categoryLinkLabel_W154>Dart</span></a><button aria-label="Expand sidebar category 'Dart'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/scala/><span title=Scala class=categoryLinkLabel_W154>Scala</span></a><button aria-label="Expand sidebar category 'Scala'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/kotlin/><span title=Kotlin class=categoryLinkLabel_W154>Kotlin</span></a><button aria-label="Expand sidebar category 'Kotlin'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-2 menu__list-item menu__list-item--collapsed"><div class=menu__list-item-collapsible><a class="categoryLink_byQd menu__link menu__link--sublist" tabindex=0 href=/docs/next/guide/xlang/><span title="Cross Language" class=categoryLinkLabel_W154>Cross Language</span></a><button aria-label="Expand sidebar category 'Cross Language'" aria-expanded=false type=button class="clean-btn menu__caret"></button></div></ul></ul></nav></div></div></aside><main class=docMainContainer_TBSr><div class="container padding-top--md padding-bottom--lg"><div class=row><div class="col docItemCol_VOVn"><div class="theme-doc-version-banner alert alert--warning margin-bottom--md" role=alert><div>This is unreleased documentation for <!-- -->Apache Fory™<!-- --> <b>dev</b> version.</div><div class=margin-top--md>For up-to-date documentation, see the <b><a href=/docs/guide/java/>latest version</a></b> (<!-- -->1.3.0<!-- -->).</div></div><div class=docItemContainer_Djhp><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label=Breadcrumbs><ul class=breadcrumbs><li class=breadcrumbs__item><a aria-label="Home page" class=breadcrumbs__link href=/><svg viewBox="0 0 24 24" class=breadcrumbHomeIcon_YNFT><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill=currentColor /></svg></a><li class=breadcrumbs__item><span class=breadcrumbs__link>Guide</span><li class="breadcrumbs__item breadcrumbs__item--active"><span class=breadcrumbs__link>Java</span></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: dev</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type=button class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Java Serialization Guide</h1></header><p>Apache Fory™ provides blazingly fast Java object serialization with JIT compilation and zero-copy techniques. Java supports both xlang mode and native mode. Xlang mode is the default cross-language wire format and uses compatible schema evolution. Native mode is the Java-only wire format for same-language object serialization, JDK serialization replacement behavior, framework replacement, and Java-native object graph features.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=features>Features<a href=#features class=hash-link aria-label="Direct link to Features" title="Direct link to Features" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=high-performance>High Performance<a href=#high-performance class=hash-link aria-label="Direct link to High Performance" title="Direct link to High Performance" translate=no></a></h3> |
| <ul> |
| <li class=""><strong>JIT Code Generation</strong>: Highly-extensible JIT framework generates serializer code at runtime using async multi-threaded compilation, delivering 20-170x speedup through:<!-- --> |
| <ul> |
| <li class="">Inlining variables to reduce memory access</li> |
| <li class="">Inlining method calls to eliminate virtual dispatch overhead</li> |
| <li class="">Minimizing conditional branching</li> |
| <li class="">Eliminating hash lookups</li> |
| </ul> |
| </li> |
| <li class=""><strong>Zero-Copy</strong>: Direct memory access without intermediate buffer copies; row format supports random access and partial serialization</li> |
| <li class=""><strong>Variable-Length Encoding</strong>: Optimized compression for integers, longs</li> |
| <li class=""><strong>Meta Sharing</strong>: Cached class metadata reduces redundant type information</li> |
| <li class=""><strong>SIMD Acceleration</strong>: Java Vector API support for array operations (Java 16+)</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=drop-in-replacement>Drop-in Replacement<a href=#drop-in-replacement class=hash-link aria-label="Direct link to Drop-in Replacement" title="Direct link to Drop-in Replacement" translate=no></a></h3> |
| <ul> |
| <li class=""><strong>100% JDK Serialization Compatible</strong>: Supports <code>writeObject</code>/<code>readObject</code>/<code>writeReplace</code>/<code>readResolve</code>/<code>readObjectNoData</code>/<code>Externalizable</code></li> |
| <li class=""><strong>Java 8+ Support</strong>: Works across all modern Java versions including Java 17+ records</li> |
| <li class=""><strong>GraalVM Native Image</strong>: AOT compilation support without reflection configuration</li> |
| <li class=""><strong>Android API 26+ Support</strong>: Core object serialization works on Android without runtime code generation.</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=advanced-features>Advanced Features<a href=#advanced-features class=hash-link aria-label="Direct link to Advanced Features" title="Direct link to Advanced Features" translate=no></a></h3> |
| <ul> |
| <li class=""><strong>Reference Tracking</strong>: Automatic handling of shared and circular references</li> |
| <li class=""><strong>Schema Evolution</strong>: Forward/backward compatibility for class schema changes</li> |
| <li class=""><strong>Polymorphism</strong>: Full support for inheritance hierarchies and interfaces</li> |
| <li class=""><strong>Deep Copy</strong>: Efficient deep cloning of complex object graphs with reference preservation</li> |
| <li class=""><strong>Security</strong>: Class registration and configurable deserialization policies</li> |
| </ul> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=installation>Installation<a href=#installation class=hash-link aria-label="Direct link to Installation" title="Direct link to Installation" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=maven>Maven<a href=#maven class=hash-link aria-label="Direct link to Maven" title="Direct link to Maven" translate=no></a></h3> |
| <div class="language-xml codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-xml codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token tag punctuation" style=color:#393A34><</span><span class="token tag" style=color:#00009f>dependency</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token tag punctuation" style=color:#393A34><</span><span class="token tag" style=color:#00009f>groupId</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain">org.apache.fory</span><span class="token tag punctuation" style=color:#393A34></</span><span class="token tag" style=color:#00009f>groupId</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token tag punctuation" style=color:#393A34><</span><span class="token tag" style=color:#00009f>artifactId</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain">fory-core</span><span class="token tag punctuation" style=color:#393A34></</span><span class="token tag" style=color:#00009f>artifactId</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token tag punctuation" style=color:#393A34><</span><span class="token tag" style=color:#00009f>version</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain">1.3.0</span><span class="token tag punctuation" style=color:#393A34></</span><span class="token tag" style=color:#00009f>version</span><span class="token tag punctuation" style=color:#393A34>></span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token tag punctuation" style=color:#393A34></</span><span class="token tag" style=color:#00009f>dependency</span><span class="token tag punctuation" style=color:#393A34>></span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=gradle>Gradle<a href=#gradle class=hash-link aria-label="Direct link to Gradle" title="Direct link to Gradle" translate=no></a></h3> |
| <div class="language-kotlin codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-kotlin codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token function" style=color:#d73a49>implementation</span><span class="token punctuation" style=color:#393A34>(</span><span class="token string-literal singleline string" style=color:#e3116c>"org.apache.fory:fory-core:1.3.0"</span><span class="token punctuation" style=color:#393A34>)</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=jdk25>JDK25+<a href=#jdk25 class=hash-link aria-label="Direct link to JDK25+" title="Direct link to JDK25+" translate=no></a></h3> |
| <p>On JDK25+, open <code>java.lang.invoke</code> to Fory. Use <code>ALL-UNNAMED</code> when Fory is on |
| the classpath:</p> |
| <div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-bash codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token plain">--add-opens</span><span class="token operator" style=color:#393A34>=</span><span class="token plain">java.base/java.lang.invoke</span><span class="token operator" style=color:#393A34>=</span><span class="token plain">ALL-UNNAMED</span><br/></div></code></pre></div></div> |
| <p>Use the Fory core module name when Fory is on the module path:</p> |
| <div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-bash codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token plain">--add-opens</span><span class="token operator" style=color:#393A34>=</span><span class="token plain">java.base/java.lang.invoke</span><span class="token operator" style=color:#393A34>=</span><span class="token plain">org.apache.fory.core</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=quick-start>Quick Start<a href=#quick-start class=hash-link aria-label="Direct link to Quick Start" title="Direct link to Quick Start" translate=no></a></h2> |
| <p>Note that Fory creation is not cheap, the <strong>Fory instances should be reused between serializations</strong> instead of creating it every time. You should keep Fory as a static global variable, or instance variable of some singleton object or limited objects.</p> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=single-thread-usage>Single-Thread Usage<a href=#single-thread-usage class=hash-link aria-label="Direct link to Single-Thread Usage" title="Direct link to Single-Thread Usage" translate=no></a></h3> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>java</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>util</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import class-name">List</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>java</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>util</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import class-name">Arrays</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>config</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>class</span><span class="token plain"> </span><span class="token class-name">Example</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>static</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>void</span><span class="token plain"> </span><span class="token function" style=color:#d73a49>main</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">String</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> args</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token plain"> object </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>new</span><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// Note that Fory instances should be reused between</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// multiple serializations of different objects.</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>requireClassRegistration</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// Registering types can reduce class name serialization overhead, but not mandatory.</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// If class registration enabled, all custom types must be registered.</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// Registration order must be consistent if id is not specified</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>register</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>.</span><span class="token keyword" style=color:#00009f>class</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>byte</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> bytes </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">object</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">System</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">out</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>println</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">bytes</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>}</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token punctuation" style=color:#393A34>}</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=multi-thread-usage>Multi-Thread Usage<a href=#multi-thread-usage class=hash-link aria-label="Direct link to Multi-Thread Usage" title="Direct link to Multi-Thread Usage" translate=no></a></h3> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>config</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>class</span><span class="token plain"> </span><span class="token class-name">Example</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>static</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>void</span><span class="token plain"> </span><span class="token function" style=color:#d73a49>main</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">String</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> args</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token plain"> object </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>new</span><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadSafeFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>register</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>.</span><span class="token keyword" style=color:#00009f>class</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> </span><span class="token number" style=color:#36acaa>1</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>byte</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> bytes </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">object</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">System</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">out</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>println</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">bytes</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>}</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token punctuation" style=color:#393A34>}</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=fory-instance-reuse-pattern>Fory Instance Reuse Pattern<a href=#fory-instance-reuse-pattern class=hash-link aria-label="Direct link to Fory Instance Reuse Pattern" title="Direct link to Fory Instance Reuse Pattern" translate=no></a></h3> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> </span><span class="token import namespace" style=opacity:0.7>org</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>apache</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>fory</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import namespace" style=opacity:0.7>config</span><span class="token import namespace punctuation" style=opacity:0.7;color:#393A34>.</span><span class="token import operator" style=color:#393A34>*</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>class</span><span class="token plain"> </span><span class="token class-name">Example</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>private</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>static</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>final</span><span class="token plain"> </span><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadSafeFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>static</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>register</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>.</span><span class="token keyword" style=color:#00009f>class</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> </span><span class="token number" style=color:#36acaa>1</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>}</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>public</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>static</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>void</span><span class="token plain"> </span><span class="token function" style=color:#d73a49>main</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">String</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> args</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token plain"> object </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>new</span><span class="token plain"> </span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>byte</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> bytes </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">object</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token class-name">System</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">out</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>println</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">bytes</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>}</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token punctuation" style=color:#393A34>}</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=xlang-mode-and-native-mode>Xlang Mode And Native Mode<a href=#xlang-mode-and-native-mode class=hash-link aria-label="Direct link to Xlang Mode And Native Mode" title="Direct link to Xlang Mode And Native Mode" translate=no></a></h2> |
| <p>Use xlang mode for cross-language payloads and schemas shared with non-Java implementations. It is the default Java wire mode, and Java examples that use it set <code>.withXlang(true)</code> explicitly so the mode choice is visible.</p> |
| <p>Use native mode for Java-only traffic. Native mode is selected with <code>.withXlang(false)</code> and owns Java-specific object behavior such as JDK serialization hooks, <code>Externalizable</code>, dynamic object graphs, object copy, and Java native-mode zero-copy buffers. It is optimized for the JVM type system and supports a broader Java object surface than xlang mode. Compatible mode is enabled by default. Set <code>.withCompatible(false)</code> only when every reader and writer uses the same class schema and you want faster serialization and smaller size. If you are replacing JDK serialization, Kryo, FST, Hessian, or Java-only Protocol Buffers payloads, start with native mode.</p> |
| <p>See <a class="" href=/docs/next/guide/java/native_serialization>Native Serialization</a> for Java-only serialization details and <a class="" href=/docs/next/guide/java/xlang_serialization>Xlang Serialization</a> for Java xlang registration and interoperability rules.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=thread-safety>Thread Safety<a href=#thread-safety class=hash-link aria-label="Direct link to Thread Safety" title="Direct link to Thread Safety" translate=no></a></h2> |
| <p>Fory provides two thread-safe Fory instance styles:</p> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=buildthreadsafefory><code>buildThreadSafeFory</code><a href=#buildthreadsafefory class=hash-link aria-label="Direct link to buildthreadsafefory" title="Direct link to buildthreadsafefory" translate=no></a></h3> |
| <p>This is the default choice. It uses a fixed-size shared <code>ThreadPoolFory</code> sized to |
| <code>4 * availableProcessors()</code> and is the preferred instance form for virtual-thread workloads:</p> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withRefTracking</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withAsyncCompilation</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadSafeFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <p>See more details in <a class="" href=/docs/next/guide/java/virtual_threads>Virtual Threads</a>.</p> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=threadlocalfory>ThreadLocalFory<a href=#threadlocalfory class=hash-link aria-label="Direct link to ThreadLocalFory" title="Direct link to ThreadLocalFory" translate=no></a></h3> |
| <p>Use <code>buildThreadLocalFory()</code> only when you explicitly want one <code>Fory</code> instance per long-lived |
| platform thread, or when you want to pin that choice regardless of JDK version:</p> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadLocalFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>register</span><span class="token punctuation" style=color:#393A34>(</span><span class="token class-name">SomeClass</span><span class="token punctuation" style=color:#393A34>.</span><span class="token keyword" style=color:#00009f>class</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> </span><span class="token number" style=color:#36acaa>1</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>byte</span><span class="token punctuation" style=color:#393A34>[</span><span class="token punctuation" style=color:#393A34>]</span><span class="token plain"> bytes </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">object</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token class-name">System</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">out</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>println</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">bytes</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=buildthreadsafeforypool><code>buildThreadSafeForyPool</code><a href=#buildthreadsafeforypool class=hash-link aria-label="Direct link to buildthreadsafeforypool" title="Direct link to buildthreadsafeforypool" translate=no></a></h3> |
| <p>Use <code>buildThreadSafeForyPool(poolSize)</code> when you want to set that fixed shared pool size |
| explicitly. It eagerly creates <code>poolSize</code> <code>Fory</code> instances, keeps them in shared fixed slots, and |
| then lets any caller borrow one through a thread-agnostic fast path. Calls only block when every |
| pooled instance is already in use; the pool does not key cached instances by thread identity:</p> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withRefTracking</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withAsyncCompilation</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadSafeForyPool</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">poolSize</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=builder-methods>Builder Methods<a href=#builder-methods class=hash-link aria-label="Direct link to Builder Methods" title="Direct link to Builder Methods" translate=no></a></h3> |
| <div class="language-java codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-java codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token comment" style=color:#999988;font-style:italic>// Single-thread Fory</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token class-name">Fory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withRefTracking</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withAsyncCompilation</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>build</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Thread-safe Fory (thread-safe Fory backed by a pool of Fory instances)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token class-name">ThreadSafeFory</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withRefTracking</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>false</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withAsyncCompilation</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadSafeFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token comment" style=color:#999988;font-style:italic>// Explicit thread-local Fory instance</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token class-name">ThreadSafeFory</span><span class="token plain"> threadLocalFory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>builder</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>withXlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>buildThreadLocalFory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=next-steps>Next Steps<a href=#next-steps class=hash-link aria-label="Direct link to Next Steps" title="Direct link to Next Steps" translate=no></a></h2> |
| <ul> |
| <li class=""><a class="" href=/docs/next/guide/java/configuration>Configuration</a> - Learn about ForyBuilder options</li> |
| <li class=""><a class="" href=/docs/next/guide/java/schema_metadata>Schema Metadata</a> - <code>@ForyField</code>, <code>@Ignore</code>, integer encoding annotations, <code>serializeEnumByName</code>, and <code>@ForyEnumId</code></li> |
| <li class=""><a class="" href=/docs/next/guide/java/basic_serialization>Basic Serialization</a> - Detailed serialization patterns</li> |
| <li class=""><a class="" href=/docs/next/guide/java/object_copy>Object Copy</a> - Deep-copy Java object graphs in memory</li> |
| <li class=""><a class="" href=/docs/next/guide/java/compression>Compression</a> - Integer, long, and array compression options</li> |
| <li class=""><a class="" href=/docs/next/guide/java/virtual_threads>Virtual Threads</a> - Virtual-thread usage and pool sizing guidance</li> |
| <li class=""><a class="" href=/docs/next/guide/java/grpc_support>gRPC Support</a> - Fory payloads over grpc-java</li> |
| <li class=""><a class="" href=/docs/next/guide/java/type_registration>Type Registration</a> - Class registration and security</li> |
| <li class=""><a class="" href=/docs/next/guide/java/custom_serializers>Custom Serializers</a> - Implement custom serializers</li> |
| <li class=""><a class="" href=/docs/next/guide/java/xlang_serialization>Xlang Serialization</a> - Serialize data for other languages</li> |
| <li class=""><a class="" href=/docs/next/guide/java/native_serialization>Native Serialization</a> - Java-only serialization features</li> |
| <li class=""><a class="" href=/docs/next/guide/java/static_generated_serializers>Static Generated Serializers</a> - Annotation-processor static generated serializers for <code>@ForyStruct</code></li> |
| <li class=""><a class="" href=/docs/next/guide/java/graalvm_support>GraalVM Support</a> - Build-time serializer compilation for native images</li> |
| </ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col noPrint_WFHX"><a href=https://github.com/apache/fory-site/tree/main/docs/guide/java/index.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_Z9Sw aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit this page</a></div><div class="col lastUpdated_JAkA"></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href=/docs/next/compiler/protobuf_idl_support><div class=pagination-nav__sublabel>Previous</div><div class=pagination-nav__label>Protobuf IDL Support</div></a><a class="pagination-nav__link pagination-nav__link--next" href=/docs/next/guide/java/basic_serialization><div class=pagination-nav__sublabel>Next</div><div class=pagination-nav__label>Basic Serialization</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href=#features class="table-of-contents__link toc-highlight">Features</a><ul><li><a href=#high-performance class="table-of-contents__link toc-highlight">High Performance</a><li><a href=#drop-in-replacement class="table-of-contents__link toc-highlight">Drop-in Replacement</a><li><a href=#advanced-features class="table-of-contents__link toc-highlight">Advanced Features</a></ul><li><a href=#installation class="table-of-contents__link toc-highlight">Installation</a><ul><li><a href=#maven class="table-of-contents__link toc-highlight">Maven</a><li><a href=#gradle class="table-of-contents__link toc-highlight">Gradle</a><li><a href=#jdk25 class="table-of-contents__link toc-highlight">JDK25+</a></ul><li><a href=#quick-start class="table-of-contents__link toc-highlight">Quick Start</a><ul><li><a href=#single-thread-usage class="table-of-contents__link toc-highlight">Single-Thread Usage</a><li><a href=#multi-thread-usage class="table-of-contents__link toc-highlight">Multi-Thread Usage</a><li><a href=#fory-instance-reuse-pattern class="table-of-contents__link toc-highlight">Fory Instance Reuse Pattern</a></ul><li><a href=#xlang-mode-and-native-mode class="table-of-contents__link toc-highlight">Xlang Mode And Native Mode</a><li><a href=#thread-safety class="table-of-contents__link toc-highlight">Thread Safety</a><ul><li><a href=#buildthreadsafefory class="table-of-contents__link toc-highlight"><code>buildThreadSafeFory</code></a><li><a href=#threadlocalfory class="table-of-contents__link toc-highlight">ThreadLocalFory</a><li><a href=#buildthreadsafeforypool class="table-of-contents__link toc-highlight"><code>buildThreadSafeForyPool</code></a><li><a href=#builder-methods class="table-of-contents__link toc-highlight">Builder Methods</a></ul><li><a href=#next-steps class="table-of-contents__link toc-highlight">Next Steps</a></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Community</div><ul class="footer__items clean-list"><li class=footer__item><a href=https://lists.apache.org/list.html?dev@fory.apache.org target=_blank rel="noopener noreferrer" class=footer__link-item>Mailing list<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://join.slack.com/t/fory-project/shared_invite/zt-1u8soj4qc-ieYEu7ciHOqA2mo47llS8A target=_blank rel="noopener noreferrer" class=footer__link-item>Slack<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://twitter.com/ApacheFory target=_blank rel="noopener noreferrer" class=footer__link-item>Twitter<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Docs</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/docs/start/install>Install</a><li class=footer__item><a class=footer__link-item href=/docs/start/usage>Usage</a><li class=footer__item><a class=footer__link-item href=/docs/introduction/benchmark>Benchmark</a></ul></div><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Repositories</div><ul class="footer__items clean-list"><li class=footer__item><a href=https://github.com/apache/fory target=_blank rel="noopener noreferrer" class=footer__link-item>Apache Fory™<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a><li class=footer__item><a href=https://github.com/apache/fory-site target=_blank rel="noopener noreferrer" class=footer__link-item>Website<svg width=13.5 height=13.5 aria-label="(opens in new tab)" class=iconExternalLink_nPIU><use href=#theme-svg-external-link /></svg></a></ul></div></div><div class="footer__bottom text--center"><div class=margin-bottom--sm><a href=https://apache.org/ rel="noopener noreferrer" class=footerLogoLink_BH7S><img src=/img/asf_logo.svg alt="ASF Logo" class="footer__logo themedComponent_mlkZ themedComponent--light_NVdE" width=200 /><img src=/img/asf_logo.svg alt="ASF Logo" class="footer__logo themedComponent_mlkZ themedComponent--dark_xIcU" width=200 /></a></div><div class=footer__copyright><div> |
| <p> |
| Copyright © 2026 The Apache Software Foundation, Licensed under the Apache License, Version 2.0. <br/> |
| Apache Fory, Fory, Apache, the Apache Logo and the Apache Fory logo are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries. |
| </p> |
| </div></div></div></div></footer></div></body> |