[Bug java/35020] New: Class.getSimpleName() differs from Sun Java

[Bug java/35020] New: Class.getSimpleName() differs from Sun Java

[gcc-bugzilla at matthew dot ath dot cx]

Test Code:

public class test
{
   class inner
   {
   }
   public static void main(String[] args)
   {
      System.out.println(inner.class.getSimpleName());
   }
}

Result with GCJ:

root@hecate:/root# java test
test$inner

Result with Sun:

mjj29@hecate:/opt/sid/root $ sudo java test
inner

GCJ version 4.3-20080116-1

Sun version 1.6.0.00


-- 
           Summary: Class.getSimpleName() differs from Sun Java
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gcc-bugzilla at matthew dot ath dot cx


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020

[Bug java/35020] Class.getSimpleName() differs from Sun Java

[mark at gcc dot gnu dot org]

------- Comment #1 from mark at gcc dot gnu dot org  2008-01-29 20:35 -------
GNU Classpath contains:

2007-08-20  Andrew John Hughes  <gnu_andrew@member.fsf.org>

        * vm/reference/java/lang/VMClass.java:
        (getCanonicalName(Class)): Fix handling of member
        classes so we don't fall out of the if block.
        (getSimpleName(Class)): Handle class names which include
        the $ sign to break up anonymous/inner/member classes.

And with cacao and current classpath CVS you get:

$ cacao test
inner


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020

[Bug java/35020] Class.getSimpleName() differs from Sun Java

[mark at gcc dot gnu dot org]

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------- Comment #2 from mark at gcc dot gnu dot org  2008-01-29 21:02 -------
Note that the libgcj and classpath versions of getSimpleName() were written
independently.

Although the classpath implementation might help in the short run. It is based
on syntactically reconstructing the simple name. The correct fix would use the
out class InnerClasses bytecode attribute.

inner_name_index
     If C is anonymous, the value of the inner_name_index item must be zero.
Otherwise, the value of the inner_name_index item must be a valid index into
the constant_pool table, and the entry at that index must be a
CONSTANT_Utf8_info (§4.4.7) structure that represents the original simple name
of C, as given in the source code from which this class file was compiled.

See
http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html#79996


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020

[Bug libgcj/35020] Class.getSimpleName() differs from Sun Java

[aph at gcc dot gnu dot org]

------- Comment #3 from aph at gcc dot gnu dot org  2008-05-22 16:21 -------
Subject: Bug 35020

Author: aph
Date: Thu May 22 16:20:55 2008
New Revision: 135771

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135771
Log:
2008-05-22  Andrew Haley  <aph@redhat.com>

        PR libgcj/35020
        * java/lang/Class.java (getSimpleName): Import from GNU Classpath.


Modified:
    trunk/libjava/ChangeLog
    trunk/libjava/classpath/lib/java/lang/Class$1.class
    trunk/libjava/classpath/lib/java/lang/Class.class
    trunk/libjava/java/lang/Class.java


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020

[Bug libgcj/35020] Class.getSimpleName() differs from Sun Java

[aph at gcc dot gnu dot org]

------- Comment #4 from aph at gcc dot gnu dot org  2008-05-23 13:05 -------
Subject: Bug 35020

Author: aph
Date: Fri May 23 13:04:18 2008
New Revision: 135801

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135801
Log:
2008-05-22  Andrew Haley  <aph@redhat.com>

        PR libgcj/35020
        * java/lang/Class.java (getSimpleName): Replace incorrect use of
        String.lastIndexOf(String, int) with String.substring.
        * testsuite/libjava.lang/PR35020.java: New file.
        * testsuite/libjava.lang/PR35020.out: New file.


Added:
    trunk/libjava/testsuite/libjava.lang/PR35020.jar   (with props)
    trunk/libjava/testsuite/libjava.lang/PR35020.java
    trunk/libjava/testsuite/libjava.lang/PR35020.out
Modified:
    trunk/libjava/ChangeLog
    trunk/libjava/classpath/lib/java/lang/Class$1.class
    trunk/libjava/classpath/lib/java/lang/Class.class
    trunk/libjava/java/lang/Class.java

Propchange: trunk/libjava/testsuite/libjava.lang/PR35020.jar
            ('svn:mime-type' added)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020

[Bug libgcj/35020] Class.getSimpleName() differs from Sun Java

[aph at gcc dot gnu dot org]

------- Comment #5 from aph at gcc dot gnu dot org  2008-05-23 13:05 -------
Fixed.


-- 

aph at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35020