java.lang.Exception: Unknown

JDK Bug System | Webbug Group | 8 months ago
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    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) 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 A DESCRIPTION OF THE PROBLEM : Class compiles but fails to load: Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.VerifyError: Inconsistent stackmap frames at branch target 82 Exception Details: Location: SwitchCompilerErr.switchTo()V @82: new Reason: Type top (current frame, locals[3]) is not assignable to 'java/lang/String' (stack map, locals[3]) Current Frame: bci: @57 flags: { } locals: { 'SwitchCompilerErr', integer, integer } stack: { integer } Stackmap Frame: bci: @82 flags: { } locals: { 'SwitchCompilerErr', integer, integer, 'java/lang/String' } stack: { } Bytecode: 0x0000000: bb00 0259 b700 03b6 0004 3cbb 0002 59b7 0x0000010: 0003 b600 043d 1bab 0000 0017 0000 0001 0x0000020: 0000 0000 0000 0011 1205 4ea7 000d bb00 0x0000030: 0659 1207 b700 08bf 1cab 0000 0000 0019 0x0000040: 0000 0001 0000 0000 0000 0013 1205 4ea7 0x0000050: 000d bb00 0659 1207 b700 08bf b1 Stackmap Table: append_frame(@40,Integer,Integer) same_frame(@46) same_frame(@56) same_frame(@76) append_frame(@82,Object[#19]) chop_frame(@92,1) 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) REGRESSION. Last worked in version 7u76 ADDITIONAL REGRESSION INFORMATION: java version "1.7.0_76" Java(TM) SE Runtime Environment (build 1.7.0_76-b13) Java HotSpot(TM) 64-Bit Server VM (build 24.76-b04, mixed mode) STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : compile and run supplied code EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - expected to load and execute ACTUAL - Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.VerifyError: Inconsistent stackmap frames at branch target 82 Exception Details: Location: SwitchCompilerErr.switchTo()V @82: new Reason: Type top (current frame, locals[3]) is not assignable to 'java/lang/String' (stack map, locals[3]) Current Frame: bci: @57 flags: { } locals: { 'SwitchCompilerErr', integer, integer } stack: { integer } Stackmap Frame: bci: @82 flags: { } locals: { 'SwitchCompilerErr', integer, integer, 'java/lang/String' } stack: { } Bytecode: 0x0000000: bb00 0259 b700 03b6 0004 3cbb 0002 59b7 0x0000010: 0003 b600 043d 1bab 0000 0017 0000 0001 0x0000020: 0000 0000 0000 0011 1205 4ea7 000d bb00 0x0000030: 0659 1207 b700 08bf 1cab 0000 0000 0019 0x0000040: 0000 0001 0000 0000 0000 0013 1205 4ea7 0x0000050: 000d bb00 0659 1207 b700 08bf b1 Stackmap Table: append_frame(@40,Integer,Integer) same_frame(@46) same_frame(@56) same_frame(@76) append_frame(@82,Object[#19]) chop_frame(@92,1) 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 SwitchCompilerErr { private void switchTo() throws Exception { int e = new Random().nextInt(); int m = new Random().nextInt(); switch (e) { case 0: String a = ""; break; default: throw new Exception("Unknown "); } // String z = ""; switch (m) { case 0: String b = ""; break; default: throw new Exception("Unknown "); } } public static void main(String[] args) throws Exception { new SwitchCompilerErr().switchTo(); } } ---------- END SOURCE ---------- CUSTOMER SUBMITTED WORKAROUND : inserting variable definition in between switch statements prevents this issue

    JDK Bug System | 8 months ago | Webbug Group
    java.lang.Exception: Unknown

    Root Cause Analysis

    1. java.lang.Exception

      Unknown

      at SwitchCompilerErr.switchTo()
    2. Unknown
      SwitchCompilerErr.main
      1. SwitchCompilerErr.switchTo(SwitchCompilerErr.java:13)
      2. SwitchCompilerErr.main(SwitchCompilerErr.java:25)
      2 frames