lhotari opened a new issue #13126:
URL: https://github.com/apache/pulsar/issues/13126
**Describe the bug**
This is a problem that happened:
```
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.8.1:testCompile
(default-testCompile) on project pulsar-broker: Fatal error compiling:
CompilerException: NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:testCompile
(default-testCompile) on project pulsar-broker: Fatal error compiling
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:215)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:196)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:186)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.Executors$RunnableAdapter.call
(Executors.java:515)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.ThreadPoolExecutor.runWorker
(ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor.java:628)
at java.lang.Thread.run (Thread.java:829)
Caused by: org.apache.maven.plugin.MojoExecutionException: Fatal error
compiling
at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute
(AbstractCompilerMojo.java:1145)
at org.apache.maven.plugin.compiler.TestCompilerMojo.execute
(TestCompilerMojo.java:180)
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)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:196)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:186)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.Executors$RunnableAdapter.call
(Executors.java:515)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.ThreadPoolExecutor.runWorker
(ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor.java:628)
at java.lang.Thread.run (Thread.java:829)
Caused by: org.codehaus.plexus.compiler.CompilerException
at
org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess
(JavaxToolsCompiler.java:173)
at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile
(JavacCompiler.java:174)
at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute
(AbstractCompilerMojo.java:1134)
at org.apache.maven.plugin.compiler.TestCompilerMojo.execute
(TestCompilerMojo.java:180)
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)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:196)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:186)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.Executors$RunnableAdapter.call
(Executors.java:515)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.ThreadPoolExecutor.runWorker
(ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor.java:628)
at java.lang.Thread.run (Thread.java:829)
Caused by: java.lang.NullPointerException
at com.sun.tools.javac.main.JavaCompiler.readSourceFile
(JavaCompiler.java:841)
at
com.sun.tools.javac.processing.JavacProcessingEnvironment$ImplicitCompleter.complete
(JavacProcessingEnvironment.java:1535)
at com.sun.tools.javac.code.Symbol.complete (Symbol.java:642)
at com.sun.tools.javac.code.Symbol$ClassSymbol.complete
(Symbol.java:1326)
at com.sun.tools.javac.code.Type$ClassType.complete (Type.java:1140)
at com.sun.tools.javac.code.Type$ClassType.getTypeArguments
(Type.java:1066)
at com.sun.tools.javac.code.Printer.visitClassType (Printer.java:237)
at com.sun.tools.javac.code.Printer.visitClassType (Printer.java:52)
at com.sun.tools.javac.code.Type$ClassType.accept (Type.java:993)
at com.sun.tools.javac.code.Printer.visit (Printer.java:136)
at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArgument
(AbstractDiagnosticFormatter.java:199)
at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments
(AbstractDiagnosticFormatter.java:167)
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:185)
at com.sun.tools.javac.util.AbstractDiagnosticFormatter.formatArguments
(AbstractDiagnosticFormatter.java:167)
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:788)
at
com.sun.tools.javac.api.ClientCodeWrapper$DiagnosticSourceUnwrapper.getMessage
(ClientCodeWrapper.java:799)
at
org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess
(JavaxToolsCompiler.java:131)
at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile
(JavacCompiler.java:174)
at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute
(AbstractCompilerMojo.java:1134)
at org.apache.maven.plugin.compiler.TestCompilerMojo.execute
(TestCompilerMojo.java:180)
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)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:196)
at
org.apache.maven.lifecycle.internal.builder.multithreaded.MultiThreadedBuilder$1.call
(MultiThreadedBuilder.java:186)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.Executors$RunnableAdapter.call
(Executors.java:515)
at java.util.concurrent.FutureTask.run (FutureTask.java:264)
at java.util.concurrent.ThreadPoolExecutor.runWorker
(ThreadPoolExecutor.java:1128)
at java.util.concurrent.ThreadPoolExecutor$Worker.run
(ThreadPoolExecutor.java:628)
at java.lang.Thread.run (Thread.java:829)
```
The problem is https://issues.apache.org/jira/browse/MCOMPILER-346
workaround is to add `<forceJavacCompilerUse>true</forceJavacCompilerUse>`
to
```
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
<showDeprecation>true</showDeprecation>
<showWarnings>true</showWarnings>
<optimize>true</optimize>
<!-- workaround
https://issues.apache.org/jira/browse/MCOMPILER-205 -->
<useIncrementalCompilation>false</useIncrementalCompilation>
+ <!-- workaround
https://issues.apache.org/jira/browse/MCOMPILER-346 -->
+ <forceJavacCompilerUse>true</forceJavacCompilerUse>
```
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