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本文主要研究下在帶有lombok(1.16.20版本)注解的代碼在java10下的編譯問題。

問題

Fatal error compilingat org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:564)at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.plugin.MojoExecutionException: Fatal error compilingat org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1086)at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:168)at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)... 20 more Caused by: org.codehaus.plexus.compiler.CompilerException: java.lang.ExceptionInInitializerErrorat 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:1075)... 23 more Caused by: java.lang.RuntimeException: java.lang.ExceptionInInitializerErrorat jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:158)at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:96)at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:90)at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:126)... 25 more Caused by: java.lang.ExceptionInInitializerErrorat lombok.javac.handlers.HandleGetter.<clinit>(HandleGetter.java:303)at java.base/java.lang.Class.forName0(Native Method)at java.base/java.lang.Class.forName(Class.java:374)at lombok.core.SpiLoadUtil$1$1.next(SpiLoadUtil.java:111)at lombok.javac.HandlerLibrary.loadAnnotationHandlers(HandlerLibrary.java:171)at lombok.javac.HandlerLibrary.load(HandlerLibrary.java:156)at lombok.javac.JavacTransformer.<init>(JavacTransformer.java:44)at lombok.javac.apt.LombokProcessor.init(LombokProcessor.java:89)at lombok.core.AnnotationProcessor$JavacDescriptor.want(AnnotationProcessor.java:87)at lombok.core.AnnotationProcessor.init(AnnotationProcessor.java:140)at lombok.launch.AnnotationProcessorHider$AnnotationProcessor.init(AnnotationProcessor.java:69)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$ProcessorState.<init>(JavacProcessingEnvironment.java:674)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$DiscoveredProcessors$ProcessorStateIterator.next(JavacProcessingEnvironment.java:771)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:866)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.access$2100(JavacProcessingEnvironment.java:110)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1202)at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1311)at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1250)at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:928)at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:100)at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:142)... 28 more Caused by: java.lang.ClassNotFoundException: com.sun.tools.javac.code.TypeTagsat java.base/java.lang.ClassLoader.findClass(ClassLoader.java:711)at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:566)at lombok.launch.ShadowClassLoader.loadClass(ShadowClassLoader.java:422)at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)at java.base/java.lang.Class.forName0(Native Method)at java.base/java.lang.Class.forName(Class.java:291)at lombok.javac.JavacTreeMaker$SchroedingerType.getFieldCached(JavacTreeMaker.java:156)at lombok.javac.JavacTreeMaker$TypeTag.typeTag(JavacTreeMaker.java:245)at lombok.javac.Javac.<clinit>(Javac.java:155)... 49 more 復制代碼

解決

這是當前1.16.20版本的問題，通過升級到最新snapshot版本1.16.21即可搞定，1.16.21的版本更新描述如下：

version: 1.16.21 (2018-03-29 11:54:42 UTC) v1.16.20 is the latest stable release of Project Lombok. PLATFORM: Fix for using lombok together with JDK9's new module-info.java feature. Issue #985 PLATFORM: Some initial work on supporting JDK10. BUGFIX: Potential fix for Netbeans < 9. Issue #1555 PROMOTION: var has been promoted from experimental to the main package with no changes. The 'old' experimental one is still around but is deprecated, and is an alias for the new main package one. var documentation. OLD-CRUFT: lombok.experimental.Builder and lombok.experimental.Value are deprecated remnants of when these features were still in experimental. They are now removed entirely. If your project is dependent on an older version of lombok which still has those; fret not, lombok still processes these annotations. It just no longer includes them in the jar. 復制代碼

本地安裝

mvn install:install-file -Dfile=lombok-1.16.21.jar -DgroupId=org.lombokproject -DartifactId=lombok -Dversion=1.16.21 -Dpackaging=jar 復制代碼

更新依賴

<dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.16.21</version><scope>provided</scope></dependency> 復制代碼

這樣就大功告成了

小結

當前release版本(1.16.20)的lombok在java10下面編譯有點小問題，不過可以使用最新的snapshot版本1.16.21來解決。

doc

• Download 'Edgy Guinea Pig' - the Lombok Cutting Edge build
• Add jdk9 compiler support #985

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