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Basil Crow commented on MCOMPILER-415: -------------------------------------- [~vlatombe] This issue is resolved for me by backporting [openjdk/jdk@{{{}44ae643b2b4{}}}|https://github.com/openjdk/jdk/commit/44ae643b2b49b66b1fff4c151c17972c6b683cc0] to {{jdk11u-dev}} as in [openjdk/jdk11u-dev#919|https://github.com/openjdk/jdk11u-dev/pull/919]. > NullPointerException from javac when compiling AntlrWorks-Jank > -------------------------------------------------------------- > > Key: MCOMPILER-415 > URL: https://issues.apache.org/jira/browse/MCOMPILER-415 > Project: Maven Compiler Plugin > Issue Type: Bug > Affects Versions: 3.1 > Environment: macOS 10.14.6, iMac Pro, AdoptOpenJDK 9, OpenJDK 11.0.2, > AdoptOpenJDK 13.0.2 > Reporter: Andrew Janke > Assignee: Robert Scholte > Priority: Minor > Attachments: antlrworks-jank-mvn-compile-NPE-02-debug.log, > antlrworks-jank-mvn-compile-NPE-02.log, > antlrworks-jank-mvn-compile-NPE-debug.log, antlrworks-jank-mvn-compile-NPE.log > > > I'm working on a project called AntlrWorks-Jank, an attempt to revive the > defunct ANTLRWorks application. https://github.com/apjanke/antlrworks2-jank > When compiling the latest work-in-progress version of my code, I'm getting a > NullPointerException apparently raised inside the javac code when it's called > by the Maven Compiler Plugin. > {code:java} > [antlrworks-jank] $ mvn -e compile > [INFO] Error stacktraces are turned on. > [...] > [INFO] works-editor-antlr4 ................................ FAILURE [ 1.026 > s] > [INFO] antlr-works-editor ................................. SKIPPED > [INFO] tvl-editor-whitespace .............................. SKIPPED > [INFO] works-editor-antlr3 ................................ SKIPPED > [INFO] > ------------------------------------------------------------------------ > [INFO] BUILD FAILURE > [INFO] > ------------------------------------------------------------------------ > [INFO] Total time: 2.028 s > [INFO] Finished at: 2020-05-08T03:01:54-04:00 > [INFO] > ------------------------------------------------------------------------ > [ERROR] Failed to execute goal > org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) > on project works-editor-antlr4: Fatal error compiling: CompilerException: > NullPointerException -> [Help 1] > org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute > goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile > (default-compile) on project works-editor-antlr4: Fatal error compiling > at org.apache.maven.lifecycle.internal.MojoExecutor.execute > (MojoExecutor.java:215) > [...] > Caused by: java.lang.NullPointerException > at com.sun.tools.javac.main.JavaCompiler.readSourceFile > (JavaCompiler.java:825) > at > com.sun.tools.javac.processing.JavacProcessingEnvironment$ImplicitCompleter.complete > (JavacProcessingEnvironment.java:1510) > at com.sun.tools.javac.code.Symbol.complete (Symbol.java:633) > at com.sun.tools.javac.code.Symbol$ClassSymbol.complete (Symbol.java:1314) > at com.sun.tools.javac.code.Type$ClassType.complete (Type.java:1139) > at com.sun.tools.javac.code.Type$ClassType.getTypeArguments > (Type.java:1065) > at com.sun.tools.javac.code.Printer.visitClassType (Printer.java:237) > at com.sun.tools.javac.code.Printer.visitClassType (Printer.java:52) > at com.sun.tools.javac.code.Type$ClassType.accept (Type.java:992) > at com.sun.tools.javac.code.Printer.visit (Printer.java:136) > at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument > (AbstractDiagnosticFormatter.java:197) > at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments > (AbstractDiagnosticFormatter.java:165) > at com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage > (BasicDiagnosticFormatter.java:111) > at com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage > (BasicDiagnosticFormatter.java:67) > at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument > (AbstractDiagnosticFormatter.java:183) > at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments > (AbstractDiagnosticFormatter.java:165) > at com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage > (BasicDiagnosticFormatter.java:111) > at com.sun.tools.javac.util.BasicDiagnosticFormatter.formatMessage > (BasicDiagnosticFormatter.java:67) > at com.sun.tools.javac.util.JCDiagnostic.getMessage > (JCDiagnostic.java:771) > at > com.sun.tools.javac.api.ClientCodeWrapper$DiagnosticSourceUnwrapper.getMessage > (ClientCodeWrapper.java:799) > at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess > (JavaxToolsCompiler.java:149) > at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile > (JavacCompiler.java:169) > at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute > (AbstractCompilerMojo.java:785) > at org.apache.maven.plugin.compiler.CompilerMojo.execute > (CompilerMojo.java:129) > at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo > (DefaultBuildPluginManager.java:137) > at org.apache.maven.lifecycle.internal.MojoExecutor.execute > (MojoExecutor.java:210) > at org.apache.maven.lifecycle.internal.MojoExecutor.execute > (MojoExecutor.java:156) > {code} > The full code to reproduce is on the NPE-during-compile tag in that repo: > https://github.com/apjanke/antlrworks2-jank/tree/NPE-during-compile. > I *think* I'm running the latest 3.8.1 version of maven-compiler-plugin, > since I'm not specifying a version for it in my POMs. Seems to happen with > Java 9, 11, and 13 (which I'm selecting by setting the $JAVA_HOME environment > variable before running `mvn -e compile`). > Would this be a bug in maven-compiler-plugin? Or actually a bug in javac? Or > something else? > Find output of `mvn -e compile &>antlrworks-jank-mvn-compile-NPE.log` and > `mvn -X -e compile &>antlrworks-jank-mvn-compile-NPE-debug.log` attached. -- This message was sent by Atlassian Jira (v8.20.1#820001)