JDK-8165569 : Lambdas throwing NPE
  • Type: Bug
  • Component: tools
  • Sub-Component: javac
  • Affected Version: 8u5
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • OS: windows_7
  • CPU: x86_64
  • Submitted: 2016-09-06
  • Updated: 2016-09-07
  • Resolved: 2016-09-07
Related Reports
Duplicate :  
JDK-8054210 - NullPointerException when compiling specific code.
Description
FULL PRODUCT VERSION :
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
WIndows & Enterprise Service Pack 1

A DESCRIPTION OF THE PROBLEM :
I cannot use to lambdas in the same call - each lambda works seperately but not together.  The commented out version works fine.  As does partial substitution of each Callback.

//Pointcut definition

    @Pointcut("execution(* com.tda.amv.batch.tasklet..execute(..))")
    public void retryable() {
        log.debug("In retryable() Pointcut");
    }
    
    @Around("retryable()")
    public Object aroundRetryableMethods(ProceedingJoinPoint joinPoint) {
        try {
            return retryTemplate.execute(retryContext -> (RepeatStatus)joinPoint.proceed(), retryContext -> RepeatStatus.FINISHED);
        	
        	
//            return retryTemplate.execute(new RetryCallback<RepeatStatus, Throwable>(){
//
//					@Override
//					public RepeatStatus doWithRetry(RetryContext retryContext) throws Throwable
//					{
//						return (RepeatStatus) joinPoint.proceed();
//					}
//            	
//            	}, new RecoveryCallback<RepeatStatus>(){
//
//					@Override
//					public RepeatStatus recover(RetryContext arg0) throws Exception
//					{
//						return RepeatStatus.FINISHED;
//					}
//            	
//            	});

        } catch (Throwable e) {
            throw new RuntimeException(e);
        }
    }


// junit test method

	@Test
	public void test() throws Exception
	{
		log.debug("In test() method...");
		
		server.expect(requestTo(url))
				.andExpect(method(HttpMethod.GET))
				.andRespond(withSuccess("{\"totalCount\":3,\"failedCount\":0,\"completionCount\":0,\"processingCount\":2}", MediaType.APPLICATION_JSON));

		getIrebalStatusTasklet.beforeStep(stepExecution);
		getIrebalStatusTasklet.execute(null, null);
		
		server.verify();


	}

//Tasklet class
public class XYZTasklet implements Tasklet
{
	Integer id;

	@Override
	public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception
	{
		log.debug("In execute() method...");

		String url = UriComponentsBuilder.newInstance()
				.scheme("http")
				.host(host)
				.port(port)
				.path(getIrebalStatusPath)
				.build(false)
				.toString();
		
		ResponseEntity<XYZ> response = restTemplate.getForEntity(url, XYZ.class,id);

		return RepeatStatus.FINISHED;
	}
}




STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run the junit test

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
test completes

ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.8.0_05). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport)  after checking the Bug Parade for duplicates. Include
your program and the following diagnostic in your report.  Thank you.
java.lang.NullPointerException
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.trackable(Flow.java:1476)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitVarDef(Flow.java:1801)
        at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitVarDef(Flow.java:2516)
        at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:846)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:389)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scan(Flow.java:1367)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitLambda(Flow.java:2225)
        at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1618)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:389)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scan(Flow.java:1367)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scanExpr(Flow.java:1596)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scanExprs(Flow.java:1608)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitApply(Flow.java:2205)
        at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1459)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:389)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scan(Flow.java:1367)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.analyzeTree(Flow.java:2370)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.analyzeTree(Flow.java:2353)
        at com.sun.tools.javac.comp.Flow.analyzeLambdaThrownTypes(Flow.java:242)
        at com.sun.tools.javac.comp.Attr.visitLambda(Attr.java:2400)
        at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1618)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.DeferredAttr$2.complete(DeferredAttr.java:270)
        at com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:231)
        at com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:218)
        at com.sun.tools.javac.comp.Resolve$MethodResultInfo.check(Resolve.java:976)
        at com.sun.tools.javac.comp.Resolve$4.checkArg(Resolve.java:822)
        at com.sun.tools.javac.comp.Resolve$AbstractMethodCheck.argumentsAcceptable(Resolve.java:733)
        at com.sun.tools.javac.comp.Resolve$4.argumentsAcceptable(Resolve.java:831)
        at com.sun.tools.javac.comp.Infer.instantiateMethod(Infer.java:162)
        at com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:566)
        at com.sun.tools.javac.comp.Resolve.checkMethod(Resolve.java:603)
        at com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3777)
        at com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3583)
        at com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3490)
        at com.sun.tools.javac.comp.Attr.checkMethodId(Attr.java:3469)
        at com.sun.tools.javac.comp.Attr.checkId(Attr.java:3456)
        at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3338)
        at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1891)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1828)
        at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1459)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.visitReturn(Attr.java:1689)
        at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1378)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665)
        at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:681)
        at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1127)
        at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665)
        at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:1357)
        at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1167)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665)
        at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:681)
        at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1127)
        at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665)
        at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1020)
        at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:596)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:665)
        at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4305)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4215)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4149)
        at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4124)
        at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1251)
        at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:904)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:863)
        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.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:126)
        at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:169)
        at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:785)
        at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:129)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
        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:120)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
        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.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)
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
	@Before
	public void setUp()
	{
		log.debug("In setUp() method...");

		url = UriComponentsBuilder.newInstance()
				.scheme("http")
				.host(host)
				.port(port)
				.path(path)
				.build(false)
				.toString();

		url = Pattern.compile("\\{id\\}").matcher(url).replaceAll(ID.toString());
		
		server = MockRestServiceServer.createServer(restTemplate);

		stepExecution.setExecutionContext(new ExecutionContext());
		stepExecution.getExecutionContext().put(SpringConfiguration.PACKAGE_ID_KEY, ID);

    }
	
	@Test
	public void test() throws Exception
	{
		log.debug("In test() method...");
		
		server.expect(requestTo(url))
				.andExpect(method(HttpMethod.GET))
				.andRespond(withSuccess("{\"totalCount\":3,\"failedCount\":0,\"completionCount\":0,\"processingCount\":2}", MediaType.APPLICATION_JSON));

		getIrebalStatusTasklet.beforeStep(stepExecution);
		getIrebalStatusTasklet.execute(null, null);
		
		server.verify();


	}
---------- END SOURCE ----------
Comments
Closing as duplicate of JDK-8054210
07-09-2016
This issue is duplicate of JDK-8054210, which has been fixed in 9 and backported to 8u40. Kindly upgrade your java version to latest to avoid this issue. You can find the latest version here - http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
07-09-2016