[java] Parser: Error with type-bound lambda
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#1470 [java] Parser: Error with type-bound lambda
closed
PMD
3-Major
Bug
5.4.1
2016-06-25
2016-04-08
No
I'm trying to include PMD in our project, and a couple of classes are erroring. I've prepared a reproducible test-case below.
It seems that the problem arises only when there is assignment from inside the lambda. If we remove that, everything works as expected.
package com.sample.test; import rx.Observable; import rx.Subscriber; public class pmdTest { private boolean stuff; public Observable<Boolean> testSuper() { return Observable.create( (Subscriber<? super String> subscriber) -> { stuff=true; }) .map(authToken -> false); } }
And here is the error and stacktrace I'm seing:
14:28:36.547 [DEBUG] [net.sourceforge.pmd.processor.MonoThreadProcessor] Error while processing file: /Users/janis/dev/ledene/app/src/main/java/com/fullcontact/ledene/test/pmdTest.java net.sourceforge.pmd.lang.java.ast.ParseException: Encountered " "<" "< "" at line 13, column 24. Was expecting one of: ")" ... "++" ... "--" ... ")" ... ")" ... at net.sourceforge.pmd.lang.java.ast.JavaParser.generateParseException(JavaParser.java:11079) at net.sourceforge.pmd.lang.java.ast.JavaParser.jj_consume_token(JavaParser.java:10963) at net.sourceforge.pmd.lang.java.ast.JavaParser.PrimaryPrefix(JavaParser.java:3873) at net.sourceforge.pmd.lang.java.ast.JavaParser.PrimaryExpression(JavaParser.java:3711) at net.sourceforge.pmd.lang.java.ast.JavaParser.PostfixExpression(JavaParser.java:3553) at net.sourceforge.pmd.lang.java.ast.JavaParser.UnaryExpressionNotPlusMinus(JavaParser.java:3515) at net.sourceforge.pmd.lang.java.ast.JavaParser.UnaryExpression(JavaParser.java:3368) at net.sourceforge.pmd.lang.java.ast.JavaParser.MultiplicativeExpression(JavaParser.java:3262) at net.sourceforge.pmd.lang.java.ast.JavaParser.AdditiveExpression(JavaParser.java:3209) at net.sourceforge.pmd.lang.java.ast.JavaParser.ShiftExpression(JavaParser.java:3154) at net.sourceforge.pmd.lang.java.ast.JavaParser.RelationalExpression(JavaParser.java:3093) at net.sourceforge.pmd.lang.java.ast.JavaParser.InstanceOfExpression(JavaParser.java:3057) at net.sourceforge.pmd.lang.java.ast.JavaParser.EqualityExpression(JavaParser.java:3004) at net.sourceforge.pmd.lang.java.ast.JavaParser.AndExpression(JavaParser.java:2964) at net.sourceforge.pmd.lang.java.ast.JavaParser.ExclusiveOrExpression(JavaParser.java:2924) at net.sourceforge.pmd.lang.java.ast.JavaParser.InclusiveOrExpression(JavaParser.java:2884) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalAndExpression(JavaParser.java:2844) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalOrExpression(JavaParser.java:2804) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalExpression(JavaParser.java:2765) at net.sourceforge.pmd.lang.java.ast.JavaParser.Expression(JavaParser.java:2624) at net.sourceforge.pmd.lang.java.ast.JavaParser.ArgumentList(JavaParser.java:4375) at net.sourceforge.pmd.lang.java.ast.JavaParser.Arguments(JavaParser.java:4339) at net.sourceforge.pmd.lang.java.ast.JavaParser.PrimarySuffix(JavaParser.java:4143) at net.sourceforge.pmd.lang.java.ast.JavaParser.PrimaryExpression(JavaParser.java:3719) at net.sourceforge.pmd.lang.java.ast.JavaParser.PostfixExpression(JavaParser.java:3553) at net.sourceforge.pmd.lang.java.ast.JavaParser.UnaryExpressionNotPlusMinus(JavaParser.java:3515) at net.sourceforge.pmd.lang.java.ast.JavaParser.UnaryExpression(JavaParser.java:3368) at net.sourceforge.pmd.lang.java.ast.JavaParser.MultiplicativeExpression(JavaParser.java:3262) at net.sourceforge.pmd.lang.java.ast.JavaParser.AdditiveExpression(JavaParser.java:3209) at net.sourceforge.pmd.lang.java.ast.JavaParser.ShiftExpression(JavaParser.java:3154) at net.sourceforge.pmd.lang.java.ast.JavaParser.RelationalExpression(JavaParser.java:3093) at net.sourceforge.pmd.lang.java.ast.JavaParser.InstanceOfExpression(JavaParser.java:3057) at net.sourceforge.pmd.lang.java.ast.JavaParser.EqualityExpression(JavaParser.java:3004) at net.sourceforge.pmd.lang.java.ast.JavaParser.AndExpression(JavaParser.java:2964) at net.sourceforge.pmd.lang.java.ast.JavaParser.ExclusiveOrExpression(JavaParser.java:2924) at net.sourceforge.pmd.lang.java.ast.JavaParser.InclusiveOrExpression(JavaParser.java:2884) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalAndExpression(JavaParser.java:2844) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalOrExpression(JavaParser.java:2804) at net.sourceforge.pmd.lang.java.ast.JavaParser.ConditionalExpression(JavaParser.java:2765) at net.sourceforge.pmd.lang.java.ast.JavaParser.Expression(JavaParser.java:2624) at net.sourceforge.pmd.lang.java.ast.JavaParser.ReturnStatement(JavaParser.java:5612) at net.sourceforge.pmd.lang.java.ast.JavaParser.Statement(JavaParser.java:4646) at net.sourceforge.pmd.lang.java.ast.JavaParser.BlockStatement(JavaParser.java:4775) at net.sourceforge.pmd.lang.java.ast.JavaParser.Block(JavaParser.java:4733) at net.sourceforge.pmd.lang.java.ast.JavaParser.MethodDeclaration(JavaParser.java:1585) at net.sourceforge.pmd.lang.java.ast.JavaParser.ClassOrInterfaceBodyDeclaration(JavaParser.java:1241) at net.sourceforge.pmd.lang.java.ast.JavaParser.ClassOrInterfaceBody(JavaParser.java:1157) at net.sourceforge.pmd.lang.java.ast.JavaParser.ClassOrInterfaceDeclaration(JavaParser.java:581) at net.sourceforge.pmd.lang.java.ast.JavaParser.TypeDeclaration(JavaParser.java:471) at net.sourceforge.pmd.lang.java.ast.JavaParser.CompilationUnit(JavaParser.java:217) at net.sourceforge.pmd.lang.java.AbstractJavaParser.parse(AbstractJavaParser.java:56) at net.sourceforge.pmd.SourceCodeProcessor.parse(SourceCodeProcessor.java:91) at net.sourceforge.pmd.SourceCodeProcessor.processSource(SourceCodeProcessor.java:138) at net.sourceforge.pmd.SourceCodeProcessor.processSourceCode(SourceCodeProcessor.java:76) at net.sourceforge.pmd.SourceCodeProcessor.processSourceCode(SourceCodeProcessor.java:43) at net.sourceforge.pmd.processor.MonoThreadProcessor.processFiles(MonoThreadProcessor.java:62) at net.sourceforge.pmd.PMD.processFiles(PMD.java:355) at net.sourceforge.pmd.ant.internal.PMDTaskImpl.doTask(PMDTaskImpl.java:182) at net.sourceforge.pmd.ant.internal.PMDTaskImpl.execute(PMDTaskImpl.java:263) at net.sourceforge.pmd.ant.PMDTask.execute(PMDTask.java:46) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292) 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:497) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at groovy.util.AntBuilder.performTask(AntBuilder.java:327) at groovy.util.AntBuilder.nodeCompleted(AntBuilder.java:272) at org.gradle.api.internal.project.ant.BasicAntBuilder.nodeCompleted(BasicAntBuilder.java:78) 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:497) at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:233) at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:58) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133) at org.gradle.api.internal.project.antbuilder.AntBuilderDelegate.nodeCompleted(AntBuilderDelegate.groovy:80) at groovy.util.BuilderSupport.doInvokeMethod(BuilderSupport.java:149) at groovy.util.BuilderSupport.invokeMethod(BuilderSupport.java:66) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133) at org.gradle.api.plugins.quality.Pmd$_run_closure2.doCall(Pmd.groovy:168) at sun.reflect.GeneratedMethodAccessor822.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019) at groovy.lang.Closure.call(Closure.java:426) at groovy.lang.Closure.call(Closure.java:442) at org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:67) at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:130) at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:91) at org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder$2.execute(DefaultIsolatedAntBuilder.java:140) at org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder$2.execute(DefaultIsolatedAntBuilder.java:122) at org.gradle.api.internal.project.antbuilder.ClassPathToClassLoaderCache.withCachedClassLoader(ClassPathToClassLoaderCache.java:134) at org.gradle.api.internal.project.antbuilder.DefaultIsolatedAntBuilder.execute(DefaultIsolatedAntBuilder.java:116) at org.gradle.api.internal.project.IsolatedAntBuilder$execute$0.call(Unknown Source) at org.gradle.api.plugins.quality.Pmd.run(Pmd.groovy:166) at sun.reflect.GeneratedMethodAccessor816.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:227) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:220) at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:209) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:585) at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:568) 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:52) 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.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110) at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23) at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43) at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37) at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30) at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:154) at org.gradle.internal.Factories$1.create(Factories.java:22) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:52) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:151) at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32) at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:99) at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:93) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:62) at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:93) at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:82) at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94) at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28) at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:75) at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:45) at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72) at org.gradle.util.Swapper.swap(Swapper.java:38) at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:66) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120) at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50) at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
I'm running the test using Gradle 2.12-all, my gradle task is below:
task pmd(type: Pmd) {
ignoreFailures = false
ruleSetFiles = files("${project.rootDir}/config/quality/pmd/pmd-ruleset.xml")
ruleSets = []
source 'src/main/java/com/sample/test'
include '**/*.java'
exclude '**/gen/**'
exclude '**/gen/**'
reports {
xml.enabled = false
html.enabled = true
xml {
destination "$project.buildDir/reports/pmd/pmd.xml"
}
html {
destination "$project.buildDir/reports/pmd/pmd.html"
}
}
}
This will be fixed with PMD 5.3.7, 5.4.2 and 5.5.0.
Commit: https://github.com/pmd/pmd/commit/81378fe8ed5aadef2c6d3f15e379fdd09773ee70
What is the ETA for 5.4.2? Eagerly waiting to include this in fix.
I've just released 5.4.2 :)
Thanks for the speedy release :)