[Bug 2945] New: No LocalVariableTable generated for the entire JDK

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=2945

            Bug ID: 2945
           Summary: No LocalVariableTable generated for the entire JDK
           Product: IcedTea
           Version: unspecified
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: IcedTea
          Assignee: gnu.andrew at redhat.com
          Reporter: mail at antoras.de
                CC: unassigned at icedtea.classpath.org

A DESCRIPTION OF THE PROBLEM :
The JDK8 doesn't contain enough debug information, the LocalVariableTables are
not generated. This means that the Eclipse debugger can't show any variable
names. As an example, this is the bytecdoe of java.util.ArrayList#subList:

  public java.util.List<E> subList(int, int);
    descriptor: (II)Ljava/util/List;
    flags: ACC_PUBLIC
    Code:
      stack=7, locals=3, args_size=3
         0: iload_1
         1: iload_2
         2: aload_0
         3: getfield #1 // Field size:I
         6: invokestatic #63 // Method subListRangeCheck:(III)V
         9: new #64 // class java/util/ArrayList$SubList
        12: dup
        13: aload_0
        14: aload_0
        15: iconst_0
        16: iload_1
        17: iload_2
        18: invokespecial #65 // Method
java/util/ArrayList$SubList."<init>":(Ljava/util/ArrayList;Ljava/util/AbstractList;III)V
        21: areturn
      LineNumberTable:
        line 996: 0
        line 997: 9
    Signature: #188 // (II)Ljava/util/List<TE;>;

In JDK7 the information is present. Here the bytecode looks like this:

  public java.util.List<E> subList(int, int);
    flags: ACC_PUBLIC
    Code:
      stack=7, locals=3, args_size=3
         0: iload_1
         1: iload_2
         2: aload_0
         3: getfield #2 // Field size:I
         6: invokestatic #60 // Method subListRangeCheck:(III)V
         9: new #61 // class java/util/ArrayList$SubList
        12: dup
        13: aload_0
        14: aload_0
        15: iconst_0
        16: iload_1
        17: iload_2
        18: invokespecial #62 // Method
java/util/ArrayList$SubList."<init>":(Ljava/util/ArrayList;Ljava/util/AbstractList;III)V
        21: areturn
      LineNumberTable:
        line 954: 0
        line 955: 9
      LocalVariableTable:
        Start Length Slot Name Signature
               0 22 0 this Ljava/util/ArrayList;
               0 22 1 fromIndex I
               0 22 2 toIndex I
      LocalVariableTypeTable:
        Start Length Slot Name Signature
            0 22 0 this Ljava/util/ArrayList<TE;>;
    Signature: #214 // (II)Ljava/util/List<TE;>;


FULL PRODUCT VERSION :
openjdk version "1.8.0_92"
OpenJDK Runtime Environment (build 1.8.0_92-b14)
OpenJDK 64-Bit Server VM (build 25.92-b14, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux version 4.5.1-1-ARCH
OpenJDK package: https://www.archlinux.org/packages/extra/x86_64/jre8-openjdk/


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :

Run:
$ javap -v -c -s java.util.ArrayList


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
LocalVariableTable and LocalVariableTypeTable should be shown.

ACTUAL -
LocalVariableTable and LocalVariableTypeTable are not shown.

This bug report is forwarded from the OpenJDK bug tracker:
https://bugs.openjdk.java.net/browse/JDK-8134011

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