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| <section><section><a id="Apache_Axis2_2.0.1_Release_Notes"></a> |
| <h2>Apache Axis2 2.0.1 Release Notes</h2></section><section><a id="Java_Version_Support"></a> |
| <h2>Java Version Support</h2> |
| <p>Apache Axis2 2.0.1 adds <strong>OpenJDK 21 and 25 support</strong> and <strong>requires OpenJDK 17 as the minimum version</strong> (upgraded from Java 8). The SecurityManager APIs removed in Java 21 are handled transparently, and legacy Date/Calendar APIs have been modernized to use java.time APIs. All features are fully tested and supported on Java 17, 21, and 25.</p></section><section><a id="New_Features"></a> |
| <h2>New Features</h2> |
| <ul> |
| |
| <li><strong>AXIS2-6098</strong>: HTTP/2 transport module with multiplexing, ALPN negotiation, and adaptive timeouts. Includes standalone HTTP/2 Java client example (<code>Http2JsonClient</code>).</li> |
| <li><strong>AXIS2-6103</strong>: Streaming JSON message formatters (<code>MoshiStreamingMessageFormatter</code>, <code>JSONStreamingMessageFormatter</code>) with <code>FlushingOutputStream</code> that flushes every 64KB. Prevents reverse proxy 502 errors on large responses. Field-level filtering via <code>FieldFilteringMessageFormatter</code> and <code>?fields=</code> query parameter. MCP (Model Context Protocol) support for AI agents with auto-generated <code>inputSchema</code> from Java method parameter types.</li> |
| <li><strong>AXIS2-6100</strong>: OpenAPI 3.0.1 spec generation and Swagger UI from Axis2 service definitions.</li> |
| <li><strong>axis2-spring-boot-starter</strong>: New module for Spring Boot autoconfiguration of Axis2.</li> |
| <li><strong>AXIS2-6040</strong>: <code>Automatic-Module-Name</code> defined for Java 9+ module system compatibility.</li> |
| </ul></section><section><a id="Removed_Features"></a> |
| <h2>Removed Features</h2> |
| <ul> |
| |
| <li><strong>AXIS2-6105</strong>: Eclipse codegen and service plugins, IntelliJ IDEA plugin, OSGi module (AXIS2-6076), JiBX data binding, SOAPMonitor, Scripting (BSF/JSR-223), FastInfoset. See <a href="https://issues.apache.org/jira/browse/AXIS2-6105" class="externalLink">AXIS2-6105</a> for details.</li> |
| <li><strong>AXIS2-6102</strong>: WSDL 2.0 (Woden) implementation removed. WSDL 1.1 remains fully supported.</li> |
| <li><strong>AXIS2-6097</strong>: Clustering feature removed.</li> |
| <li><strong>AXIS2-6079</strong>: Java Security Manager / AccessController code removed (deprecated in Java 17, removed in Java 24).</li> |
| </ul></section><section><a id="Breaking_Changes"></a> |
| <h2>Breaking Changes</h2> |
| <ul> |
| |
| <li><strong>Minimum Java Version</strong>: Requires <strong>Java 17</strong> (previously Java 8)</li> |
| <li><strong>API Modernization</strong>: Legacy Date/Calendar usage replaced with java.time.Instant APIs</li> |
| <li><strong>Security</strong>: SecurityManager dependent code removed for Java 21+ compatibility</li> |
| <li><strong>Removed modules</strong>: Users of JiBX, SOAPMonitor, Scripting, FastInfoset, Eclipse/IDEA plugins, OSGi, WSDL 2.0, or Clustering must migrate before upgrading from 2.0.0</li> |
| </ul> |
| </section><section><a id="Bug"></a> |
| <h2> Bug |
| </h2> |
| |
| <ul> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-4146" class="externalLink">AXIS2-4146</a>] - HTTP status code 400 is changed to 500 |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5696" class="externalLink">AXIS2-5696</a>] - Axis 2 threads are not closing properly |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5788" class="externalLink">AXIS2-5788</a>] - ConfigurationContext.getServiceGroupContext(id) always touches the id - ("Observer Effect") |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5852" class="externalLink">AXIS2-5852</a>] - 'Axis2 task' threads stays in waiting state without terminating |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5858" class="externalLink">AXIS2-5858</a>] - soap:address location's value is wrong with IPv6 |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5862" class="externalLink">AXIS2-5862</a>] - Handler / Phase Indexes incorrect? |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5904" class="externalLink">AXIS2-5904</a>] - Intermittent Rampart policy configuration missing Error |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5965" class="externalLink">AXIS2-5965</a>] - .class files up to 3 times redundantly in jar file |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5966" class="externalLink">AXIS2-5966</a>] - Axis2 1.8.0-SNAPSHOT fix did not work for JDK 11 |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5972" class="externalLink">AXIS2-5972</a>] - missing namespace declaration - attribute present in multiple XSD's not parsed correctly |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6031" class="externalLink">AXIS2-6031</a>] - xmlbeans generator generates methods with @deprecated in javadoc only, but not marked with @Deprecated annotation |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6047" class="externalLink">AXIS2-6047</a>] - Missing Port in the Host header of the requests coming from HTTPClient4TransportSender implementation. |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6055" class="externalLink">AXIS2-6055</a>] - Basic Auth credentials are missing in request |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6061" class="externalLink">AXIS2-6061</a>] - Axis2 client parses soap envolope in case of a http-404 |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6074" class="externalLink">AXIS2-6074</a>] - Issue with empty enum tags |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6083" class="externalLink">AXIS2-6083</a>] - Cookie Handling not work with 2.0.0 |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6086" class="externalLink">AXIS2-6086</a>] - AxisServlet - processAxisFault - does not guard against NumberFormatException |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6087" class="externalLink">AXIS2-6087</a>] - Master branch using 1.8.0 AAR/MAR dependencies - switch to 2.0.0? |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6090" class="externalLink">AXIS2-6090</a>] - Tomcat Version too high? |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6091" class="externalLink">AXIS2-6091</a>] - Problem handling HTTP Response in OutInAxisOperationClient / TransportUtils |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6094" class="externalLink">AXIS2-6094</a>] - CRC of some axis2 jars distributed via WAR archive is different than CRC of jars distributed via public repositories |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6095" class="externalLink">AXIS2-6095</a>] - Axis2's IDL parser (Corba Module) gives fault on valid comment |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6096" class="externalLink">AXIS2-6096</a>] - Attempted read on closed stream for multithreaded environment |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6101" class="externalLink">AXIS2-6101</a>] - Adapt to changes in HttpClient 5.6 |
| </li> |
| </ul> |
| </section><section><a id="Improvement"></a> |
| <h2> Improvement |
| </h2> |
| |
| <ul> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-3879" class="externalLink">AXIS2-3879</a>] - Ability to change the http status code in the response being sent to the client |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5762" class="externalLink">AXIS2-5762</a>] - Add Transport Ports to MessageContext |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-5881" class="externalLink">AXIS2-5881</a>] - Small improvement to the listServices.jsp to sort services and operations |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6040" class="externalLink">AXIS2-6040</a>] - Define Automatic-Module-Name for Java9 module system compatibility |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6053" class="externalLink">AXIS2-6053</a>] - cvc-complex-type.3.2.2: Attribute 'contentType' is not allowed to appear in element ... |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6082" class="externalLink">AXIS2-6082</a>] - Make Axis2 build reproducible |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6085" class="externalLink">AXIS2-6085</a>] - Build instructions in README don't mention bash requirement |
| </li> |
| </ul> |
| </section><section><a id="Task"></a> |
| <h2> Task |
| </h2> |
| |
| <ul> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6076" class="externalLink">AXIS2-6076</a>] - OSGI jakarta support is unmaintained |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6079" class="externalLink">AXIS2-6079</a>] - Remove the Java Security Manager from AccessController and Java2SecTest |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6097" class="externalLink">AXIS2-6097</a>] - Remove Clustering feature |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6098" class="externalLink">AXIS2-6098</a>] - Add HTTP/2 transport and docs explaining the benefits |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6100" class="externalLink">AXIS2-6100</a>] - Add REST support for OpenAPI (formerly known as Swagger) |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6102" class="externalLink">AXIS2-6102</a>] - Woden (WSDL 2.0) Removal |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6103" class="externalLink">AXIS2-6103</a>] - Add MCP protocol support for AI agents |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6105" class="externalLink">AXIS2-6105</a>] - Remove OSGi bundle packaging from transport modules |
| </li> |
| |
| <li>[<a href="https://issues.apache.org/jira/browse/AXIS2-6106" class="externalLink">AXIS2-6106</a>] - Remove unmaintained XMPP transport module |
| </li> |
| </ul> |
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