| --- |
| layout: post |
| title: "Apache Maven 3.6.2 Released" |
| date: '2019-09-07T16:30:00+00:00' |
| permalink: apache-maven-3-6-2 |
| categories: |
| - Maven-Core-Releases |
| --- |
| The Apache Maven team is pleased to announce the release of the Apache |
| Maven 3.6.2. |
| |
| Apache Maven is a software project management and comprehension tool. Based |
| on the concept of a project object model (POM), Maven can manage a |
| project's build, reporting and documentation from a central piece of |
| information. |
| |
| You can find out more about Apache Maven at https://maven.apache.org |
| |
| You can download the appropriate sources etc. from |
| the [download page](https://maven.apache.org/download.cgi) |
| |
| <!-- more --> |
| |
| We really value the contributions of these non committers, so this section is |
| focused on those individuals. Descriptions of the issues fixed can be found at |
| the [end of these release notes](#Details). |
| |
| Issue Reporters of this release: |
| |
| * Benoit GUERIN |
| * Christian Schulte |
| * Elliotte Rusty Harold |
| * Falko Modler |
| * Francesco Chicchiriccò |
| * Guillaume Nodet, |
| * guofei |
| * Joseph Walton |
| * Louis Mills |
| * Mark Derricutt, |
| * Mark McKelvy |
| * Mickael Istria |
| * Nicolas Echegut |
| * Nicolas Radde |
| * Raphael Rösch |
| * Ray Tsang |
| * Robert Thornton |
| * Rohan Padhye |
| * Sergey Chernov |
| * Stefan Oehme |
| * Thibaud Lepretre |
| * zhb. |
| |
| Code Contributors of this release: |
| |
| * Guillaume Nodet |
| * Mickael Istria |
| * Ray Tsang |
| * Stefan Oehme |
| * Joseph Walton |
| * Bo Zhang |
| * AElMehdi |
| * Christian Schulte |
| * Mao Shuai |
| * MartinKanters |
| * Sergey Chernov |
| * Jesse Glick. |
| |
| Many thanks to all reporters and contributors for their time and support. |
| |
| (Please send an email to the dev list if we missed one to mention). |
| |
| ## Known Issues |
| |
| None. |
| |
| ## Overview about the changes |
| |
| - This release focuses mostly performance improvements, better memory footprint, and less CPU usage. |
| |
| - We are continuing to convert Maven Core to use JSR 330 annotations instead of Plexus |
| (still not finished, see MNG-5577). |
| |
| - New support for ‘release’ qualifier (see MNG-6655). |
| |
| - The `toolchain.xml` file supports environment variables (see MNG-6665). |
| |
| |
| ## User visible Changes |
| |
| `toolchain.xml` now supports usage of environment variables which looks like this: |
| |
| ```xml |
| <toolchain> |
| <type>jdk</type> |
| <provides> |
| <version>1.8</version> |
| <vendor>sun</vendor> |
| </provides> |
| <configuration> |
| <jdkHome>${env.JDK_HOME_8}</jdkHome> |
| </configuration> |
| </toolchain> |
| ``` |
| ## The detailed issue list[](#Details) |
| |
| ### Bugs: |
| |
| - [MNG-6375](https://issues.apache.org/jira/browse/MNG-6375) - NullPointerException when pom.xml has incomplete XML tag |
| - [MNG-6626](https://issues.apache.org/jira/browse/MNG-6626) - NullPointerException in DefaultExceptionHandler |
| - [MNG-6629](https://issues.apache.org/jira/browse/MNG-6629) - DefaultModelValidator.validateId is inefficient |
| - [MNG-6630](https://issues.apache.org/jira/browse/MNG-6630) - ComparableVersion.parseVersion is inefficient |
| - [MNG-6631](https://issues.apache.org/jira/browse/MNG-6631) - DefaultArtifactVersion.parseVersion is inefficient |
| - [MNG-6632](https://issues.apache.org/jira/browse/MNG-6632) - ArtifactHandlerManager.getArtifactHandler is inefficient |
| - [MNG-6633](https://issues.apache.org/jira/browse/MNG-6633) - ExcludesArtifactFilter is a memory hog |
| - [MNG-6636](https://issues.apache.org/jira/browse/MNG-6636) - NPE on reporting convertion (DefaultReportingConverter) when inheritance of with no reports |
| - [MNG-6639](https://issues.apache.org/jira/browse/MNG-6639) - Child inherit.append.path attributes not defined in Maven POM XSD |
| - [MNG-6642](https://issues.apache.org/jira/browse/MNG-6642) - Tycho-based modules do not build with 3.6.1 (works with 3.6.0) |
| - [MNG-6643](https://issues.apache.org/jira/browse/MNG-6643) - Version comparison CLI does not work anymore |
| - [MNG-6644](https://issues.apache.org/jira/browse/MNG-6644) - NPE in DefaultReportingConverter when reports has no InputLocation (using polyglot Maven) |
| - [MNG-6647](https://issues.apache.org/jira/browse/MNG-6647) - NPE in DefaultReportingConverter (when reports injected by Repaint IO maven-tiles) |
| - [MNG-6653](https://issues.apache.org/jira/browse/MNG-6653) - DefaultProjectBuildingRequest copy constructor does not copy all fields |
| - [MNG-6668](https://issues.apache.org/jira/browse/MNG-6668) - Model location handling uses too much memory |
| - [MNG-6669](https://issues.apache.org/jira/browse/MNG-6669) - Tycho cannot resolve project dependencies |
| - [MNG-6700](https://issues.apache.org/jira/browse/MNG-6700) - Equal compile source roots are added multiple times |
| - [MNG-6703](https://issues.apache.org/jira/browse/MNG-6703) - DefaultUrlNormalizer doesn't normalize all relative URIs |
| - [MNG-6704](https://issues.apache.org/jira/browse/MNG-6704) - MavenRepositorySystemUtils.newSession() misses assignment |
| - [MNG-6707](https://issues.apache.org/jira/browse/MNG-6707) - Maven XML parser does not accept '>' in XML processing instructions |
| - [MNG-6712](https://issues.apache.org/jira/browse/MNG-6712) - Downgrade maven-resolver:1.4.0 to 1.3.3 |
| - [MNG-6713](https://issues.apache.org/jira/browse/MNG-6713) - Fix ExclusionArtifactFilter to respect wildcard |
| - [MNG-6716](https://issues.apache.org/jira/browse/MNG-6716) - relative testSourceDirectory on macos throw duplicate class error |
| - [MNG-6720](https://issues.apache.org/jira/browse/MNG-6720) - MultiThreadedBuilder: wait for parallel running projects when using --fail-fast |
| - [MNG-6723](https://issues.apache.org/jira/browse/MNG-6723) - MavenProject.getParentFile() not set when using ProjectBuilder.build(List<File>, ...) |
| |
| ### Improvements |
| |
| - [MNG-6069](https://issues.apache.org/jira/browse/MNG-6069) - Migrate to non deprecated parts of Commons CLI |
| - [MNG-6638](https://issues.apache.org/jira/browse/MNG-6638) - Prevent reparsing POMs in MavenMetadataSource |
| - [MNG-6655](https://issues.apache.org/jira/browse/MNG-6655) - Add support for "release" qualifier |
| - [MNG-6665](https://issues.apache.org/jira/browse/MNG-6665) - toolchain.xml file should support environment variables |
| - [MNG-6667](https://issues.apache.org/jira/browse/MNG-6667) - Hint at Maven upgrade requirement when trying to build a pom.xml with a newer modelVersion |
| - [MNG-6675](https://issues.apache.org/jira/browse/MNG-6675) - Make Resolver debug log messages for projects and plugins consistent |
| - [MNG-6695](https://issues.apache.org/jira/browse/MNG-6695) - Improve speed in collection merging |
| - [MNG-6696](https://issues.apache.org/jira/browse/MNG-6696) - Speed improvements while parsing big reactor projects |
| - [MNG-6697](https://issues.apache.org/jira/browse/MNG-6697) - Add a fast interpolator not using reflection |
| - [MNG-6698](https://issues.apache.org/jira/browse/MNG-6698) - Lazily compute the ManagedVersionMap |
| - [MNG-6701](https://issues.apache.org/jira/browse/MNG-6701) - Document maven.repo.local system property |
| - [MNG-6702](https://issues.apache.org/jira/browse/MNG-6702) - Improve DefaultModelValidator performance |
| - [MNG-6705](https://issues.apache.org/jira/browse/MNG-6705) - Speep up Artifact version check and Parent interpolation |
| - [MNG-6718](https://issues.apache.org/jira/browse/MNG-6718) - Upgrade Plexus Utils to 3.2.1 |
| - [MNG-6729](https://issues.apache.org/jira/browse/MNG-6729) - StringSearchModelInterpolator introspects objects from Java API |
| - [MNG-6747](https://issues.apache.org/jira/browse/MNG-6747) - Generalize 'resume from' message when build reactor fails |
| |
| ### Test |
| |
| - [MNG-6535](https://issues.apache.org/jira/browse/MNG-6535) - Improve test coverage of org.apache.maven.model.path.DefaultUrlNormalizer |
| |
| ### Wish |
| |
| ### Task |
| |
| - [MNG-6681](https://issues.apache.org/jira/browse/MNG-6681) - improve documentation: dependency type = file classifier(optional)+extension + additional hints on dependency features |
| |
| ### Dependency upgrade |
| |
| - [MNG-6549](https://issues.apache.org/jira/browse/MNG-6549) - Remove unused transitive dependencies of Guava |
| - [MNG-6627](https://issues.apache.org/jira/browse/MNG-6627) - upgrade plexus-component-metadata to 2.0.0 to get reproducible `META-INF/plexus/components.xml` |
| - [MNG-6646](https://issues.apache.org/jira/browse/MNG-6646) - Upgrade maven-assembly-plugin to 3.1.1 |
| - [MNG-6671](https://issues.apache.org/jira/browse/MNG-6671) - Upgrade Modello to 1.11 |
| - [MNG-6674](https://issues.apache.org/jira/browse/MNG-6674) - Upgrade Wagon to 3.3.3 |
| - [MNG-6738](https://issues.apache.org/jira/browse/MNG-6738) - Upgrade maven-resolver to 1.4.1 |
| |
| |
| ### Sub Tasks |
| |
| - [MNG-6680](https://issues.apache.org/jira/browse/MNG-6680) - Convert Maven Settings Builder to JSR 330 |
| - [MNG-6685](https://issues.apache.org/jira/browse/MNG-6685) - Convert Maven Model Builder to JSR 330 |
| - [MNG-6686](https://issues.apache.org/jira/browse/MNG-6686) - Convert Maven Embedder to JSR 330 |
| |
| The full list of changes can be found in our [issue management system][4]. |
| |
| ## Complete Release Notes |
| |
| See [complete release notes for all versions][5] |
| |
| - The Apache Maven Team. |
| |
| |
| [0]: ../../download.html |
| [1]: ../../plugins/index.html |
| [2]: https://maven.apache.org/ |
| [4]: https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12316922&version=12345234 |
| [5]: ../../docs/history.html |
| [MNG-6680]: https://issues.apache.org/jira/browse/MNG-6680 |
| [MNG-6685]: https://issues.apache.org/jira/browse/MNG-6685 |
| [MNG-6686]: https://issues.apache.org/jira/browse/MNG-6686 |
| [MNG-6375]: https://issues.apache.org/jira/browse/MNG-6375 |
| [MNG-6626]: https://issues.apache.org/jira/browse/MNG-6626 |
| [MNG-6629]: https://issues.apache.org/jira/browse/MNG-6629 |
| [MNG-6630]: https://issues.apache.org/jira/browse/MNG-6630 |
| [MNG-6631]: https://issues.apache.org/jira/browse/MNG-6631 |
| [MNG-6632]: https://issues.apache.org/jira/browse/MNG-6632 |
| [MNG-6633]: https://issues.apache.org/jira/browse/MNG-6633 |
| [MNG-6636]: https://issues.apache.org/jira/browse/MNG-6636 |
| [MNG-6639]: https://issues.apache.org/jira/browse/MNG-6639 |
| [MNG-6642]: https://issues.apache.org/jira/browse/MNG-6642 |
| [MNG-6643]: https://issues.apache.org/jira/browse/MNG-6643 |
| [MNG-6644]: https://issues.apache.org/jira/browse/MNG-6644 |
| [MNG-6647]: https://issues.apache.org/jira/browse/MNG-6647 |
| [MNG-6653]: https://issues.apache.org/jira/browse/MNG-6653 |
| [MNG-6668]: https://issues.apache.org/jira/browse/MNG-6668 |
| [MNG-6669]: https://issues.apache.org/jira/browse/MNG-6669 |
| [MNG-6700]: https://issues.apache.org/jira/browse/MNG-6700 |
| [MNG-6703]: https://issues.apache.org/jira/browse/MNG-6703 |
| [MNG-6704]: https://issues.apache.org/jira/browse/MNG-6704 |
| [MNG-6707]: https://issues.apache.org/jira/browse/MNG-6707 |
| [MNG-6712]: https://issues.apache.org/jira/browse/MNG-6712 |
| [MNG-6713]: https://issues.apache.org/jira/browse/MNG-6713 |
| [MNG-6716]: https://issues.apache.org/jira/browse/MNG-6716 |
| [MNG-6720]: https://issues.apache.org/jira/browse/MNG-6720 |
| [MNG-6723]: https://issues.apache.org/jira/browse/MNG-6723 |
| [MNG-6069]: https://issues.apache.org/jira/browse/MNG-6069 |
| [MNG-6638]: https://issues.apache.org/jira/browse/MNG-6638 |
| [MNG-6655]: https://issues.apache.org/jira/browse/MNG-6655 |
| [MNG-6665]: https://issues.apache.org/jira/browse/MNG-6665 |
| [MNG-6667]: https://issues.apache.org/jira/browse/MNG-6667 |
| [MNG-6675]: https://issues.apache.org/jira/browse/MNG-6675 |
| [MNG-6695]: https://issues.apache.org/jira/browse/MNG-6695 |
| [MNG-6696]: https://issues.apache.org/jira/browse/MNG-6696 |
| [MNG-6697]: https://issues.apache.org/jira/browse/MNG-6697 |
| [MNG-6698]: https://issues.apache.org/jira/browse/MNG-6698 |
| [MNG-6701]: https://issues.apache.org/jira/browse/MNG-6701 |
| [MNG-6702]: https://issues.apache.org/jira/browse/MNG-6702 |
| [MNG-6705]: https://issues.apache.org/jira/browse/MNG-6705 |
| [MNG-6729]: https://issues.apache.org/jira/browse/MNG-6729 |
| [MNG-6747]: https://issues.apache.org/jira/browse/MNG-6747 |
| [MNG-6535]: https://issues.apache.org/jira/browse/MNG-6535 |
| [MNG-6681]: https://issues.apache.org/jira/browse/MNG-6681 |
| [MNG-6549]: https://issues.apache.org/jira/browse/MNG-6549 |
| [MNG-6627]: https://issues.apache.org/jira/browse/MNG-6627 |
| [MNG-6646]: https://issues.apache.org/jira/browse/MNG-6646 |
| [MNG-6671]: https://issues.apache.org/jira/browse/MNG-6671 |
| [MNG-6674]: https://issues.apache.org/jira/browse/MNG-6674 |
| [MNG-6718]: https://issues.apache.org/jira/browse/MNG-6718 |
| [MNG-6738]: https://issues.apache.org/jira/browse/MNG-6738 |
