解决mapStruct报错javaInternalerrorinthemappingprocessor
背景
mapStruct的作用:
MapStruct是一个代码生成器,简化了不同的Java Bean之间映射的处理。 我们在写代码时经常涉及到VO、DTO、BO、DO之间实体的转换,有了mapStruct之后,可以让不同实体之间的转换变的简单。我们只需要按照约定的方式进行配置即可。
但是最近在使用mapStruct时,IDEA编译报如下错误: 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.(DefaultModelElementProcessorContext.java:50) at org.mapstruct.ap.MappingProcessor.processMapperElements(MappingProcessor.java:218) at org.mapstruct.ap.MappingProcessor.process(MappingProcessor.java:156) at org.jetbrains.jps.javac.APIWrappers$ProcessorWrapper.process(APIWrappers.java:109) 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:213) at org.mapstruct.ap.MappingProcessor.process(Unknown Source) at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:794) at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:705) at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91) at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035) at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176) 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) 解决方案
直接上解决方案:
修改IDEA设置,
Setting -->Build,Execution,Deployment -->Compiler -->User-local build加上参数:
-Djps.track.ap.dependencies=false