Re: [aspectj-users] aspectjtools fail with NPE during maven build

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Re: [aspectj-users] aspectjtools fail with NPE during maven build

From: "Alexander Kriegisch" <alexander@xxxxxxxxxxxxxx>
Date: Sun, 13 Feb 2022 16:43:42 +0100 (CET)
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Dear Martin,

please don't just guess. Version 1.14 of Mojohaus AspectJ Maven supports
up to Java 16 and the dev.aspectj version 1.13.1 works with Java 17 (and
can be upgraded to anything more recent, as soon as new AspectJ versions
with future Java version support are released in the future). So while I
normally recommend the dev.aspectj version, because it has the biggest
feature set and latest AspectJ support, all three plugins should be OK
with Java 11, even the retired one you recommend. This is why I asked
for an MCVE [1]. I do not think that the plugin is the problem, even
though in theory there is always that possibility, of course. But let us
analyse rather than guess and confuse the people looking for help here,
shall we?

[1] https://stackoverflow.com/help/mcve

-- 
Alexander Kriegisch
https://scrum-master.de


Martin Gainty schrieb am 13.02.2022 21:41 (GMT +07:00):
> 
> 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
> <https://stackoverflow.com/questions/62976155/aspectj-maven-plugin-1-11-missing-tools-jar-issue-with-jdk-11>
> 
> 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
> 
> 
> hence this code in ClasspathJmode fails
> 
> 
> After some more patching and debugging I also found that some of
> ClasspathJar objects throw NPE for the same reason – zipFile is null
> 
> 
> 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.
> 
>

References:
- [aspectj-users] aspectjtools fail with NPE during maven build
  - From: raimondas
- Re: [aspectj-users] aspectjtools fail with NPE during maven build
  - From: Martin Gainty

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