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  1. JDK
  2. JDK-8037404

javac NPE or VerifyError for code with constructor reference of inner class

    Details

    • Subcomponent:
    • Resolved In Build:
      b22
    • Verification:
      Verified

      Backports

        Description

        Try to compile following codes.

        import java.util.function.Supplier;
        import java.util.stream.Stream;

        public class Issue {
            public static void main(String[] args) {
                System.out.println(new Issue().getList().get());
            }

            Supplier<TT> getList() {
                return () -> Stream.of(1).map(TT::new).findFirst().get();
            }

            class TT {
                public TT(int i) {

                }
            }
        }
        ////////////////////////////////////
        import java.util.function.Function;
        import java.util.stream.Stream;

        public class Issue {
            public static void main(String[] args) {
                System.out.println(new Issue().map().apply(1));
            }

            Function<Integer,TT> map() {
                return (i) -> Stream.of(i).map(TT::new).findFirst().get();
            }

            class TT {
                public TT(int i) {

                }
            }
        }

        //////////////////////////////////////////
        java.lang.NullPointerException
                at com.sun.tools.javac.jvm.Code.emitop0(Code.java:563)
                at com.sun.tools.javac.jvm.Items$SelfItem.load(Items.java:367)
                at com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:966)
                at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1905)
                at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1459)
                at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:947)
                at com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:966)
                at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1905)
                at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1459)
                at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:947)
                at com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2404)
                at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1891)
                at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:947)
                at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1900)
                at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1459)
                at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:947)
                at com.sun.tools.javac.jvm.Gen.visitTypeCast(Gen.java:2327)
                at com.sun.tools.javac.tree.JCTree$JCTypeCast.accept(JCTree.java:1808)
                at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:947)
                at com.sun.tools.javac.jvm.Gen.visitReturn(Gen.java:1863)
                at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1378)
                at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:737)
                at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:772)
                at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:758)
                at com.sun.tools.javac.jvm.Gen.genStats(Gen.java:809)
                at com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1158)
                at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:903)
                at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:737)
                at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:772)
                at com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:1031)
                at com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:994)
                at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:772)
                at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:737)
                at com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2526)
                at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:748)
                at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1570)
                at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1534)
                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.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)

        Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
        Exception Details:
          Location:
            Issue.lambda$map$0(Ljava/lang/Integer;)LIssue$TT; @5: invokedynamic
          Reason:
            Type 'java/lang/Integer' (current frame, stack[1]) is not assignable to 'Issue'
          Current Frame:
            bci: @5
            flags: { }
            locals: { 'java/lang/Integer' }
            stack: { 'java/util/stream/Stream', 'java/lang/Integer' }
          Bytecode:
            0000000: 2ab8 000a 2aba 000b 0000 b900 0c02 00b9
            0000010: 000d 0100 b600 0ec0 000f b0

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                • Assignee:
                  rfield Robert Field
                  Reporter:
                  anazarov Andrey Nazarov (Inactive)
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                  • Created:
                    Updated:
                    Resolved: