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Re: [aspectj-users] aspectjtools fail with NPE during maven build
  • From: Martin Gainty <mgainty@xxxxxxxxxxx>
  • Date: Sun, 13 Feb 2022 14:41:41 +0000
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  • Thread-topic: [aspectj-users] aspectjtools fail with NPE during maven build
try version 1.1 of Wong's aspectj-maven-plugin 
<dependency>
  <groupId>com.nickwongdev</groupId>
  <artifactId>aspectj-maven-plugin</artifactId>
  <version>1.12.6</version>
</dependency>

java - aspectj-maven-plugin 1.11 : missing tools.jar issue with jdk 11 - Stack Overflow

Buona Fortuna



From: aspectj-users <aspectj-users-bounces@xxxxxxxxxxx> on behalf of raimondas@xxxxxxxxxx <raimondas@xxxxxxxxxx>
Sent: Saturday, February 12, 2022 7:38 AM
To: aspectj-users@xxxxxxxxxxx <aspectj-users@xxxxxxxxxxx>
Subject: [aspectj-users] aspectjtools fail with NPE during maven build
 
Hi,
 
We are doing migration of our project to Java 11 and got blocked by this aspectjtools fail with NPE during maven build. Context:
1. Java 11 (AdoptOpenJDK jdk-11.0.10.9-hotspot)
2. aspectj-maven-plugin v1.14
3. aspectjtools v1.9.7
4. pom.xml snippet
<plugin>
   <groupId>org.codehaus.mojo</groupId>
   <artifactId>aspectj-maven-plugin</artifactId>
   <version>1.14</version>
   <configuration>
      <complianceLevel>11</complianceLevel>
      <source>11</source>
      <target>11</target>
      <showWeaveInfo>true</showWeaveInfo>
      <verbose>true</verbose>
      <aspectLibraries>
         <aspectLibrary>
            <groupId>xxx.xxx.xxx</groupId>
            <artifactId>xxx-aspects</artifactId>
         </aspectLibrary>
      </aspectLibraries>
      <includes>
         <include>**/*.aj</include>
         <include>**/*.class</include>
      </includes>
      <Xlint>cantFindType=ignore</Xlint>
      <weaveDirectories>
         <weaveDirectory>${project.build.directory}/classesToWeav</weaveDirectory>
      </weaveDirectories>
   </configuration>
   <executions>
      <execution>
         <!-- Compile and weave aspects after all classes compiled by javac -->
         <phase>process-classes</phase>
         <goals>
            <goal>compile</goal>
         </goals>
      </execution>
   </executions>
         <dependencies>
      <dependency>
         <groupId>org.aspectj</groupId>
         <artifactId>aspectjtools</artifactId>
         <version>1.9.7<version>
         <scope>compile</scope>
      </dependency>
   </dependencies>
</plugin>
 
5. Stack trace:
[ERROR] Failed to execute goal org.codehaus.mojo:aspectj-maven-plugin:1.14.0:compile (default) on project xxx: AJC compiler errors:
[ERROR] abort ABORT -- (NullPointerException) null
[ERROR] null
[ERROR] java.lang.NullPointerException
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.ClasspathJmod.getModulesDeclaringPackage(ClasspathJmod.java:146)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.ClasspathLocation.isPackage(ClasspathLocation.java:184)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.ClasspathJmod.findClass(ClasspathJmod.java:55)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.FileSystem.internalFindClass(FileSystem.java:544)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.FileSystem.findClass(FileSystem.java:464)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.batch.FileSystem.findType(FileSystem.java:617)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.env.IModuleAwareNameEnvironment.findType(IModuleAwareNameEnvironment.java:101)
[ERROR]         at org.aspectj.ajdt.internal.core.builder.StatefulNameEnvironment.findType(StatefulNameEnvironment.java:101)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createPlainPackage(LookupEnvironment.java:1151)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.buildTypeBindings(CompilationUnitScope.java:136)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.buildTypeBindings(LookupEnvironment.java:487)
[ERROR]         at org.aspectj.ajdt.internal.compiler.lookup.AjLookupEnvironment.buildTypeBindings(AjLookupEnvironment.java:1471)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:870)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:395)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:449)
[ERROR]         at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:427)
[ERROR]         at org.aspectj.ajdt.internal.core.builder.AjBuildManager.performCompilation(AjBuildManager.java:1096)
[ERROR]         at org.aspectj.ajdt.internal.core.builder.AjBuildManager.performBuild(AjBuildManager.java:275)
[ERROR]         at org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild(AjBuildManager.java:188)
[ERROR]         at org.aspectj.ajdt.ajc.AjdtCommand.doCommand(AjdtCommand.java:103)
[ERROR]         at org.aspectj.ajdt.ajc.AjdtCommand.runCommand(AjdtCommand.java:47)
[ERROR]         at org.aspectj.tools.ajc.Main.run(Main.java:372)
[ERROR]         at org.aspectj.tools.ajc.Main.runMain(Main.java:250)
[ERROR]         at org.codehaus.mojo.aspectj.AbstractAjcCompiler.execute(AbstractAjcCompiler.java:568)
[ERROR]         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
[ERROR]         at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
[ERROR]         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
[ERROR]         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
[ERROR]         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
[ERROR]         at org.apache.maven.cli.MavenCli.execute(MavenCli.java:956)
[ERROR]         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
[ERROR]         at org.apache.maven.cli.MavenCli.main(MavenCli.java:192)
[ERROR]         at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR]         at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR]         at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR]         at java.base/java.lang.reflect.Method.invoke(Method.java:566)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[ERROR]
 
The problem is that ClasspathJmod objects for JMOD files have zipFile=null
 
image
 
hence this code in ClasspathJmode fails
image
 
After some more patching and debugging I also found that some of ClasspathJar objects throw NPE for the same reason – zipFile is null
 
image
 
I could not find if there is some configuration missing or something else that has to be provided in pom.xml so that aspect plugin finishes successfully. Appreciate any help on this.
 
 

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