Retrolambda: Lint crashes when using lambda expressions with retrolambda

Question

I am trying to use retrolambda with the gradle-retrolambda plugin. In general, it works fine, but when I compile for release, the lint stage crashes with the exception:

 :playground.dagger:lintVitalReleaseFailed converting ECJ parse tree to Lombok for file D:\....\playground\dagger\MainActivity.java java.lang.UnsupportedOperationException: Unknown ASTNode child: LambdaExpression at lombok.ast.ecj.EcjTreeVisitor.visitOther(EcjTreeVisitor.java:368) at lombok.ast.ecj.EcjTreeVisitor.visitEcjNode(EcjTreeVisitor.java:364) at lombok.ast.ecj.EcjTreeConverter.visit(EcjTreeConverter.java:295) at lombok.ast.ecj.EcjTreeConverter.toTree(EcjTreeConverter.java:236) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:282) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:252) at lombok.ast.ecj.EcjTreeConverter.access$100(EcjTreeConverter.java:141) at lombok.ast.ecj.EcjTreeConverter$2.visitMessageSend(EcjTreeConverter.java:1042) at lombok.ast.ecj.EcjTreeVisitor.visitEcjNode(EcjTreeVisitor.java:156) at lombok.ast.ecj.EcjTreeConverter.visit(EcjTreeConverter.java:295) at lombok.ast.ecj.EcjTreeConverter.toTree(EcjTreeConverter.java:236) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:282) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:252) at lombok.ast.ecj.EcjTreeConverter.toBlock(EcjTreeConverter.java:397) at lombok.ast.ecj.EcjTreeConverter.access$1500(EcjTreeConverter.java:141) at lombok.ast.ecj.EcjTreeConverter$2.visitMethodDeclaration(EcjTreeConverter.java:1241) at lombok.ast.ecj.EcjTreeVisitor.visitEcjNode(EcjTreeVisitor.java:152) at lombok.ast.ecj.EcjTreeConverter.visit(EcjTreeConverter.java:295) at lombok.ast.ecj.EcjTreeConverter.toTree(EcjTreeConverter.java:236) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:282) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:252) at lombok.ast.ecj.EcjTreeConverter.access$100(EcjTreeConverter.java:141) at lombok.ast.ecj.EcjTreeConverter$2.createNormalTypeBody(EcjTreeConverter.java:563) at lombok.ast.ecj.EcjTreeConverter$2.visitTypeDeclaration(EcjTreeConverter.java:486) at lombok.ast.ecj.EcjTreeVisitor.visitEcjNode(EcjTreeVisitor.java:48) at lombok.ast.ecj.EcjTreeConverter.visit(EcjTreeConverter.java:295) at lombok.ast.ecj.EcjTreeConverter.toTree(EcjTreeConverter.java:236) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:282) at lombok.ast.ecj.EcjTreeConverter.fillList(EcjTreeConverter.java:252) at lombok.ast.ecj.EcjTreeConverter.access$100(EcjTreeConverter.java:141) at lombok.ast.ecj.EcjTreeConverter$2.visitCompilationUnitDeclaration(EcjTreeConverter.java:441) at lombok.ast.ecj.EcjTreeVisitor.visitEcjNode(EcjTreeVisitor.java:264) at lombok.ast.ecj.EcjTreeConverter.visit(EcjTreeConverter.java:295) at com.android.tools.lint.EcjParser.parseJava(EcjParser.java:407) at com.android.tools.lint.client.api.JavaVisitor.visitFile(JavaVisitor.java:236) at com.android.tools.lint.client.api.LintDriver.checkJava(LintDriver.java:1491) at com.android.tools.lint.client.api.LintDriver.runFileDetectors(LintDriver.java:1026) at com.android.tools.lint.client.api.LintDriver.checkProject(LintDriver.java:882) at com.android.tools.lint.client.api.LintDriver.analyze(LintDriver.java:433) at com.android.tools.lint.client.api.LintDriver.analyze(LintDriver.java:374) at com.android.tools.lint.LintCliClient.run(LintCliClient.java:130) at com.android.build.gradle.internal.LintGradleClient.run(LintGradleClient.java:112) at com.android.build.gradle.internal.LintGradleClient$run.call(Unknown Source) at com.android.build.gradle.tasks.Lint.runLint(Lint.groovy:198) at com.android.build.gradle.tasks.Lint.this$4$runLint(Lint.groovy) at com.android.build.gradle.tasks.Lint$this$4$runLint$1.callCurrent(Unknown Source) at com.android.build.gradle.tasks.Lint.lintSingleVariant(Lint.groovy:173) at com.android.build.gradle.tasks.Lint$lintSingleVariant$0.callCurrent(Unknown Source) at com.android.build.gradle.tasks.Lint.lint(Lint.groovy:75) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:218) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:579) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:562) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46) at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42) at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53) at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:305) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88) at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62) at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23) at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68) at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149) at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106) at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86) at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:80) at org.gradle.tooling.internal.provider.BuildModelAction.run(BuildModelAction.java:43) at org.gradle.tooling.internal.provider.BuildModelAction.run(BuildModelAction.java:30) at org.gradle.tooling.internal.provider.ConfiguringBuildAction.run(ConfiguringBuildAction.java:119) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:36) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26) at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:47) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:35) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:24) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.StartStopIfBuildAndStop.execute(StartStopIfBuildAndStop.java:33) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:71) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:69) at org.gradle.util.Swapper.swap(Swapper.java:38) at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:69) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:70) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:34) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.DaemonHygieneAction.execute(DaemonHygieneAction.java:39) at org.gradle.launcher.daemon.server.exec.DaemonCommandExecution.proceed(DaemonCommandExecution.java:119) at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:46) at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246) at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 

Is there anything to do? Of course, a trivial job / job would be to disable the lint check for release. But I am looking for a solution to save lint .

The following is the build.gradle application build.gradle :

 apply plugin: 'com.android.application' apply plugin: 'me.tatarka.retrolambda' apply plugin: 'com.neenbedankt.android-apt' configurations { apt } android { compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } compileSdkVersion 22 buildToolsVersion "21.1.2" defaultConfig { minSdkVersion 10 targetSdkVersion 22 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled true shrinkResources true proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' } } } repositories { maven{ url 'https://oss.sonatype.org/content/repositories/snapshots/' } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:22.0.0' compile 'com.jakewharton:butterknife:6.1.0' compile 'com.google.dagger:dagger:2.0-SNAPSHOT' compile 'de.greenrobot:eventbus:2.4.0' retrolambdaConfig 'net.orfjackal.retrolambda:retrolambda:1.8.1' apt 'com.google.dagger:dagger-compiler:2.0-SNAPSHOT' provided 'org.glassfish:javax.annotation:10.0-b28' } 

Root build.gradle :

 buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:1.1.0' classpath 'com.neenbedankt.gradle.plugins:android-apt:1.4' classpath 'me.tatarka:gradle-retrolambda:2.5.0' } } allprojects { repositories { jcenter() } } 

Answer 1

You can use a special version of lombok with lint that does not whine about Java 8 features.

 buildscript { repositories { jcenter() ... } dependencies { classpath 'com.android.tools.build:gradle:<version>' classpath 'me.tatarka:gradle-retrolambda:<version>' classpath 'me.tatarka.retrolambda.projectlombok:lombok.ast:0.2.3.a2' } // Exclude the version that the android plugin depends on. configurations.classpath.exclude group: 'com.android.tools.external.lombok' } 

That way, you can continue to use lint for the entire project, even with the latest versions of the Android Gradle plugin.

Note. If you get the same errors, try translating the configuration above to the very top build.gradle file. He should work then.

Answer 2

There is a GitHub issue that discusses this issue: https://github.com/evant/gradle-retrolambda/issues/96

One comment in this question mentions that lint never worked with retrolambda, but rather with the latest version lint now “doesn't work loudly”, and not just skip the rest of the file when lambda was encountered.

With this in mind, it seems that there are two options. Firstly, you can just disable lint , as you mentioned in your question. Of course, the problem is that you will lose the advantage of lint scanning the rest of your code. The second option is to roll back your version of lint so that it no longer "fails", but simply skips checking the source associated with the lambda; This way lint can still scan the rest of your application source code.

According to the GitHub issue, 24.0.1 back your lint version from 24.0.1 (you may have a different version) to 24.0.0 seems to 24.0.0 problem. You can find this information in the release (the link is laid out at the beginning of the answer).