FULL PRODUCT VERSION :
java version "1.8.0_66"
Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Darwin Patrick-Mac 15.0.0 Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64 x86_64
A DESCRIPTION OF THE PROBLEM :
The compiler crashes when calling the `super` constructor with a non-existing
method reference.
Note that the problem does not depend on the superclass. There doesn't need to be a constructor that accepts suitable parameters. In fact, this problem also occurs in classes that directly extend from Object.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Place the enclosed source code in a file named "Test.java" and compile with "javac Test.java".
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The compiler issues a compile error stating the method reference is invalid, along with the location of the method reference.
ACTUAL -
The compiler crashes with a NullPointerException. No further information about the origin or cause of the problem is given.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.8.0_66). Please file a bug at the Java Bug Database (http://bugreport.java.com/bugreport/) after checking the database for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitIdent(Flow.java:2403)
at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2011)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.visitReference(TreeScanner.java:268)
at com.sun.tools.javac.tree.JCTree$JCMemberReference.accept(JCTree.java:1973)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExpr(Flow.java:1635)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExprs(Flow.java:1647)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitApply(Flow.java:2259)
at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:175)
at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitBlock(Flow.java:1883)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitMethodDef(Flow.java:1811)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1749)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2446)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2429)
at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:211)
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1327)
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1296)
at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
at com.sun.tools.javac.main.Main.compile(Main.java:523)
at com.sun.tools.javac.main.Main.compile(Main.java:381)
at com.sun.tools.javac.main.Main.compile(Main.java:370)
at com.sun.tools.javac.main.Main.compile(Main.java:361)
at com.sun.tools.javac.Main.compile(Main.java:56)
at com.sun.tools.javac.Main.main(Main.java:42)
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
public class Test {
public Test() {
super(NonExistingClass::someMethod);
}
}
---------- END SOURCE ----------
java version "1.8.0_66"
Java(TM) SE Runtime Environment (build 1.8.0_66-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Darwin Patrick-Mac 15.0.0 Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64 x86_64
A DESCRIPTION OF THE PROBLEM :
The compiler crashes when calling the `super` constructor with a non-existing
method reference.
Note that the problem does not depend on the superclass. There doesn't need to be a constructor that accepts suitable parameters. In fact, this problem also occurs in classes that directly extend from Object.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Place the enclosed source code in a file named "Test.java" and compile with "javac Test.java".
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The compiler issues a compile error stating the method reference is invalid, along with the location of the method reference.
ACTUAL -
The compiler crashes with a NullPointerException. No further information about the origin or cause of the problem is given.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.8.0_66). Please file a bug at the Java Bug Database (http://bugreport.java.com/bugreport/) after checking the database for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitIdent(Flow.java:2403)
at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2011)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.visitReference(TreeScanner.java:268)
at com.sun.tools.javac.tree.JCTree$JCMemberReference.accept(JCTree.java:1973)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExpr(Flow.java:1635)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExprs(Flow.java:1647)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitApply(Flow.java:2259)
at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:175)
at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitBlock(Flow.java:1883)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitMethodDef(Flow.java:1811)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1749)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2446)
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2429)
at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:211)
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1327)
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1296)
at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
at com.sun.tools.javac.main.Main.compile(Main.java:523)
at com.sun.tools.javac.main.Main.compile(Main.java:381)
at com.sun.tools.javac.main.Main.compile(Main.java:370)
at com.sun.tools.javac.main.Main.compile(Main.java:361)
at com.sun.tools.javac.Main.compile(Main.java:56)
at com.sun.tools.javac.Main.main(Main.java:42)
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
public class Test {
public Test() {
super(NonExistingClass::someMethod);
}
}
---------- END SOURCE ----------
- duplicates
-
JDK-8065986 Compiler fails to NullPointerException when calling super with Object<>()
-
- Closed
-