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https://issues.apache.org/jira/browse/MCOMPILER-339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sylwester Lachiewicz closed MCOMPILER-339.
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Resolution: Workaround
> Skip --release flag if compilerVersion is lower than 1.9
> --------------------------------------------------------
>
> Key: MCOMPILER-339
> URL: https://issues.apache.org/jira/browse/MCOMPILER-339
> Project: Maven Compiler Plugin
> Issue Type: Improvement
> Affects Versions: 3.7.0
> Reporter: David J. M. Karlsen
> Priority: Major
>
> usecase: I have a build which is jdk10 by default, declared via the
> parent-pom.
> However, one submodule must be compiled and run with java8. I had hoped to
> get this working, by setting:
> {noformat}
> <properties>
> <maven.compiler.release>8</maven.compiler.release>
> <maven.compiler.source>1.8</maven.compiler.source>
> <maven.compiler.target>1.8</maven.compiler.target>
> <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
> </properties>
> {noformat}
>
> but it will fail with
> {noformat}
> Caused by: java.lang.IllegalArgumentException: invalid flag:
> --release*11:53:45* at com.sun.tools.javac.api.JavacTool.processOptions
> (JavacTool.java:206)*11:53:45* at
> com.sun.tools.javac.api.JavacTool.getTask (JavacTool.java:156)*11:53:45*
> at com.sun.tools.javac.api.JavacTool.getTask (JavacTool.java:107)*11:53:45*
> at com.sun.tools.javac.api.JavacTool.getTask (JavacTool.java:64)*11:53:45*
> at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess
> (JavaxToolsCompiler.java:125)*11:53:45* at
> org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile
> (JavacCompiler.java:174)*11:53:45* at
> org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute
> (AbstractCompilerMojo.java:1075)*11:53:45* at
> org.apache.maven.plugin.compiler.TestCompilerMojo.execute
> (TestCompilerMojo.java:176)*11:53:45* at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
> (DefaultBuildPluginManager.java:134)*11:53:45* at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:208)*11:53:45* at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:154)*11:53:45* at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:146)*11:53:45* at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
> (LifecycleModuleBuilder.java:117)*11:53:45* at
> org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
> (MultiThreadedBuilder.java:200)*11:53:45* at
> org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
> (MultiThreadedBuilder.java:196)*11:53:45* at
> java.util.concurrent.FutureTask.run (FutureTask.java:266)*11:53:45* at
> java.util.concurrent.Executors$RunnableAdapter.call
> (Executors.java:511)*11:53:45* at java.util.concurrent.FutureTask.run
> (FutureTask.java:266)*11:53:45* at
> java.util.concurrent.ThreadPoolExecutor.runWorker
> (ThreadPoolExecutor.java:1149)*11:53:45* at
> java.util.concurrent.ThreadPoolExecutor$Worker.run
> (ThreadPoolExecutor.java:624)*11:53:45* at java.lang.Thread.run
> (Thread.java:748)
> {noformat}
> If the release flag could only be enabled for compiler versions supporting it
> it would be easier to juggle the build.
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