[jira] [Resolved] (MCOMPILER-445) Javac error on jdk16 build 18: invalid flag: -Xdoclint:-missing

["Enrico Olivelli (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MCOMPILER-445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Enrico Olivelli resolved MCOMPILER-445.
---------------------------------------
    Resolution: Fixed

the issue has been resolved upstream

 

 

> Javac error on jdk16 build 18: invalid flag: -Xdoclint:-missing
> ---------------------------------------------------------------
>
>                 Key: MCOMPILER-445
>                 URL: https://issues.apache.org/jira/browse/MCOMPILER-445
>             Project: Maven Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 3.8.0, 3.8.1
>         Environment: Maven 3.6.3
> Compiler-Plugin 3.8.1
> JDK16 since JDK 16 ea b 18
>            Reporter: Benjamin Marwell
>            Assignee: Benjamin Marwell
>            Priority: Major
>              Labels: jdk, jdk-javac, jdk16
>
> h2. Issue description
> When compiling with options {{noFork}} and {{-Xdoclint}}, the compiler plugin will fail:
>  
> {quote}{{[INFO] ------------------------------------------------------------------------}}
> {{[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (pre-compile-jute) on project zookeeper-jute: Fatal error compiling: error: invalid flag: -Xdoclint:-missing -> [Help 1]}}
> {{This is Maven debug:}}
> {{[DEBUG] Classpath:}}
> {{[DEBUG] /home/eolivelli/dev/zookeeper/zookeeper-jute/target/classes}}
> {{[DEBUG] /home/eolivelli/.m2/repository/org/apache/yetus/audience-annotations/0.5.0/audience-annotations-0.5.0.jar}}
> {{[DEBUG] Source roots:}}
> {{[DEBUG] /home/eolivelli/dev/zookeeper/zookeeper-jute/src/main/java}}
> {{[DEBUG] /home/eolivelli/dev/zookeeper/zookeeper-jute/target/generated-sources/java}}
> {{[DEBUG] /home/eolivelli/dev/zookeeper/zookeeper-jute/target/generated-sources/annotations}}
> {{[DEBUG] Command line options:}}
> {{[DEBUG] -d /home/eolivelli/dev/zookeeper/zookeeper-jute/target/classes -classpath /home/eolivelli/dev/zookeeper/zookeeper-jute/target/classes:/home/eolivelli/.m2/repository/org/apache/yetus/audience-annotations/0.5.0/audience-annotations-0.5.0.jar: -sourcepath /home/eolivelli/dev/zookeeper/zookeeper-jute/src/main/java:/home/eolivelli/dev/zookeeper/zookeeper-jute/target/generated-sources/java:/home/eolivelli/dev/zookeeper/zookeeper-jute/target/generated-sources/annotations: -s /home/eolivelli/dev/zookeeper/zookeeper-jute/target/generated-sources/annotations -g --release 8 -encoding UTF-8 -Werror -Xlint:deprecation -Xlint:unchecked -Xlint:-options -Xdoclint:-missing -Xpkginfo:always}}
> {{[DEBUG] incrementalBuildHelper#beforeRebuildExecution}}
> {{[INFO] Compiling 36 source files to /home/eolivelli/dev/zookeeper/zookeeper-jute/target/classes}}{quote}
> But -Xdoclint is a valid option.
> h2. Cause
> Without forking, maven runs {{javac}} using {{com.sun.tools.javac.api.JavacTool}}. The module is not loaded.
> h2. Proposed solution
> From the mailing list:
> When running the compiler in noFork mode, use the ToolProvider to run Javac in the same VM on Java9+. This can be implemented using multi-release-jars. See the {{maven-jlink-plugin}} as a reference.
> h2. Related
> [Move Doclint to jdk.javadoc module|https://bugs.openjdk.java.net/browse/JDK-8252712]



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