MapStruct - NullPointerException

MapStruct - NullPointerException

 

• 개발환경

mapstruct version 1.3.0.Final

IntelliJ IDEA 2021.2.2

 

=> IntelliJ 사용하면서 컴파일할 때 에러 발생

 

java: Internal error in the mapping processor: java.lang.NullPointerException
      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.createManifestUrl(DefaultVersionInformation.java:182)
      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.openManifest(DefaultVersionInformation.java:153)
      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.getLibraryName(DefaultVersionInformation.java:129)
      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.getCompiler(DefaultVersionInformation.java:122)
      at org.mapstruct.ap.internal.processor.DefaultVersionInformation.fromProcessingEnvironment(DefaultVersionInformation.java:95)
      at org.mapstruct.ap.internal.processor.DefaultModelElementProcessorContext.<init>(DefaultModelElementProcessorContext.java:50)
      at org.mapstruct.ap.MappingProcessor.processMapperElements(MappingProcessor.java:218)
      at org.mapstruct.ap.MappingProcessor.process(MappingProcessor.java:156)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.jetbrains.jps.javac.APIWrappers$1.invoke(APIWrappers.java:255)
      at org.mapstruct.ap.MappingProcessor.process(Unknown Source)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:802)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:713)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1043)
      at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1184)
      at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)
      at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856)
      at com.sun.tools.javac.main.Main.compile(Main.java:523)
      at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
      at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
      at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:231)
      at org.jetbrains.jps.incremental.java.JavaBuilder.lambda$compileJava$2(JavaBuilder.java:514)
      at org.jetbrains.jps.incremental.java.JavaBuilder.invokeJavac(JavaBuilder.java:560)
      at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:512)
      at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:355)
      at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:280)
      at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:234)
      at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1464)
      at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:1101)
      at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1247)
      at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:1066)
      at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:832)
      at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:419)
      at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:183)
      at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:132)
      at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:301)
      at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:132)
      at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:219)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at java.lang.Thread.run(Thread.java:748)

 

원인

jetbrains 이슈 노트를 보니 mapping processor 내에서 NPE(java.lang.NullPointerException)가 발생하여 컴파일러가 종속성 정보를 수집하지 못해 발생하는 문제

https://youtrack.jetbrains.com/issue/IDEA-250718#focus=Comments-27-4418347.0-0

 

1. mapstruct 버전 업데이트

mapstruct version 1.3.0.Final 에서 1.4.1.Final 로 버전 업데이트

build.gradle

bootJar { enabled = true }

ext {
    mapstructVersion = "1.4.1.Final"
}

=> 해결

 

2. -Djps.track.ap.dependencies=false 옵션

Build, Execution, Deployment > Compiler > User-local build process VM options (overrides Shared options)

-Djps.track.ap.dependencies=false

=> 해결

 

참조 : https://stackoverflow.com/questions/65112406/intellij-idea-mapstruct-java-internal-error-in-the-mapping-processor-java-lang