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  1. JDK
  2. JDK-8160700

java.lang.VerifyError: Bad local variable type

    Details

    • Subcomponent:
    • Introduced In Version:
      8
    • CPU:
      x86_64
    • OS:
      linux

      Description

      FULL PRODUCT VERSION :
      java version "1.8.0_92"
      Java(TM) SE Runtime Environment (build 1.8.0_92-b14)
      Java HotSpot(TM) 64-Bit Server VM (build 25.92-b14, mixed mode)Q

      ADDITIONAL OS VERSION INFORMATION :
      3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

      EXTRA RELEVANT SYSTEM CONFIGURATION :
      fails on different hardware/os setups

      A DESCRIPTION OF THE PROBLEM :
      code compiles but class does not load

      REGRESSION. Last worked in version 7u76

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      compile provided code and attempt to run

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      it should load and run
      ACTUAL -
      class fails to load

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      Error: A JNI error has occurred, please check your installation and try again
      Exception in thread "main" java.lang.VerifyError: Bad local variable type
      Exception Details:
        Location:
          TernaryOperatorCompileErr.main([Ljava/lang/String;)V @25: aload_2
        Reason:
          Type top (current frame, locals[2]) is not assignable to reference type
        Current Frame:
          bci: @25
          flags: { }
          locals: { '[Ljava/lang/String;', integer }
          stack: { 'java/io/PrintStream', 'java/lang/StringBuilder' }
        Bytecode:
          0x0000000: bb00 0259 b700 03b6 0004 3cb2 0005 bb00
          0x0000010: 0659 b700 071b 9900 072c a700 042d b600
          0x0000020: 08b6 0009 b600 0ab1
        Stackmap Table:
          full_frame(@29,{Object[#20],Integer},{Object[#21],Object[#22]})
          full_frame(@30,{Object[#20],Integer},{Object[#21],Object[#22],Object[#23]})

              at java.lang.Class.getDeclaredMethods0(Native Method)
              at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
              at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
              at java.lang.Class.getMethod0(Class.java:3018)
              at java.lang.Class.getMethod(Class.java:1784)
              at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
              at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)


      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      import java.util.Random;

      public class TernaryOperatorCompileErr {

      public static void main(String[] args) {
      boolean b = new Random().nextBoolean();
      final String a1 = "a";
      final String a2 = "b";

      System.out.println(new StringBuilder().append(b ? a1 : a2).toString());
      }

      }

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

      CUSTOMER SUBMITTED WORKAROUND :
      refrain from using 'final' on local variables used with ternary operators

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            • Assignee:
              vromero Vicente Arturo Romero Zaldivar
              Reporter:
              webbuggrp Webbug Group
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              Dates

              • Created:
                Updated:
                Resolved: