JDK-8297336 : NPE: FlowAnalyzer.visitApply for nestedClass>method>lambda1>lambda2
  • Type: Bug
  • Component: tools
  • Affected Version: 11.0.17
  • Priority: P4
  • Status: Closed
  • Resolution: Cannot Reproduce
  • OS: generic
  • CPU: generic
  • Submitted: 2022-11-18
  • Updated: 2022-12-22
  • Resolved: 2022-11-21
Related Reports
Relates :  
JDK-8222251 - preflow visitor is not visiting lambda expressions
Description
ADDITIONAL SYSTEM INFORMATION :
/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/javac --version
javac 11.0.17


A DESCRIPTION OF THE PROBLEM :
An exception has occurred in the compiler (11.0.17). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
	at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitApply(Flow.java:1235)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1650)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:398)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:213)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1468)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:398)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitBlock(Flow.java:997)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1036)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:398)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$LambdaFlowAnalyzer.visitLambda(Flow.java:1430)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1827)
	at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:398)
	at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.analyzeTree(Flow.java:1327)
	at jdk.compiler/com.sun.tools.javac.comp.Flow.analyzeLambdaThrownTypes(Flow.java:252)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitLambda(Attr.java:2615)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1827)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$4.complete(DeferredAttr.java:376)
	at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr$ArgumentType.complete(ArgumentAttr.java:364)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:337)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:323)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$MethodResultInfo.check(Resolve.java:1060)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$4.checkArg(Resolve.java:887)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$AbstractMethodCheck.argumentsAcceptable(Resolve.java:775)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$4.argumentsAcceptable(Resolve.java:896)
	at jdk.compiler/com.sun.tools.javac.comp.Infer.instantiateMethod(Infer.java:181)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:605)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.checkMethod(Resolve.java:644)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:4131)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3924)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3825)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.checkId(Attr.java:3814)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:3564)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2264)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitApply(Attr.java:2006)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1650)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:702)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1773)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1468)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStats(Attr.java:743)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1294)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1036)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStats(Attr.java:743)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1294)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1036)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculative(DeferredAttr.java:501)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculative(DeferredAttr.java:483)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculativeLambda(DeferredAttr.java:458)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredAttrNode$StructuralStuckChecker.canLambdaBodyCompleteNormally(DeferredAttr.java:875)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredAttrNode$StructuralStuckChecker.visitLambda(DeferredAttr.java:853)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1827)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredAttrNode$StructuralStuckChecker.complete(DeferredAttr.java:807)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:337)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredAttrNode.process(DeferredAttr.java:754)
	at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr$DeferredAttrContext.complete(DeferredAttr.java:601)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:620)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.selectBest(Resolve.java:1563)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.findMethodInScope(Resolve.java:1733)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1802)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1776)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$10.doLookup(Resolve.java:2654)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve$BasicLookupHelper.lookup(Resolve.java:3293)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.lookupMethod(Resolve.java:3543)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.resolveQualifiedMethod(Resolve.java:2651)
	at jdk.compiler/com.sun.tools.javac.comp.Resolve.resolveQualifiedMethod(Resolve.java:2645)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.selectSym(Attr.java:3732)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3612)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2130)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitApply(Attr.java:2006)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1650)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:702)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1773)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1468)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStats(Attr.java:743)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1294)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1036)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1098)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:866)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4694)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4585)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4514)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.visitClassDef(Attr.java:951)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:774)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:655)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:724)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4694)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4585)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4514)
	at jdk.compiler/com.sun.tools.javac.comp.Attr.attrib(Attr.java:4459)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1337)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:973)
	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:311)
	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:170)
	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:57)
	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:43)


also seen before NPE:
java: compiler message file broken: key=compiler.misc.msg.bug arguments=11.0.17, {1}, {2}, {3}, {4}, {5}, {6}, {7}


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile attached source code

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
compiles
ACTUAL -
NPE in compiler

---------- BEGIN SOURCE ----------

class CompNpeLambdaReproIndep {
	interface IntProcedure {
		boolean execute(int a);
	}

	static class Outer {
		void foreach(IntProcedure p) {
		}
	}

	interface RunnableWithException<E extends Exception> {
		void run() throws E;
	}

	static <E extends Exception> void propagateAndRun( RunnableWithException<E> rwe) {
	}

	class Nested {
		void method2() {
			Outer map = new Outer();
			map.foreach(intParam -> {
				propagateAndRun(() -> {
					System.out.println("reference outer param " + intParam);
				});
				return true;
			});
		}
	}
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Extract innermost lambda into a method

FREQUENCY : always
Comments
This issue is fixed by https://bugs.openjdk.org/browse/JDK-8222251 (https://github.com/openjdk/jdk11u-dev/commit/cb5e61162be487aa38505bd48711f08f847285e9)
01-12-2022
It is reproducible with jdk-11.0.17+8: https://github.com/openjdk/jdk11u-dev/releases/tag/jdk-11.0.17%2B8 It is not reproducible with jdk-11.0.18+1: https://github.com/openjdk/jdk11u-dev/releases/tag/jdk-11.0.18%2B1
24-11-2022
I am not able to reproduce the issue. The reproducer compiles fine from JDK 8 through JDK 20. PS C:\test> C:\jdk\jdk-11.0.17+10_windows-x64_bin\jdk-11.0.17\bin\java -version java version "11.0.17" 2022-10-18 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.17+10-LTS-269) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.17+10-LTS-269, mixed mode) PS C:\test> C:\jdk\jdk-11.0.17+10_windows-x64_bin\jdk-11.0.17\bin\javac .\CompNpeLambdaReproIndep.java PS C:\test>
21-11-2022