java/5537: Error compiling simple bytecode with jsr
Daniel.Bonniot@inria.fr
Daniel.Bonniot@inria.fr
Wed Jan 30 07:56:00 GMT 2002
>Number: 5537
>Category: java
>Synopsis: Error compiling simple bytecode with jsr
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Wed Jan 30 04:26:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Daniel Bonniot
>Release: 3.0.3
>Organization:
>Environment:
Debian package gcj-3.0
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,proto,objc --prefix=/usr --infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-checking --enable-threads=posix --enable-java-gc=boehm --with-cpp-install-dir=bin --enable-objc-gc i386-linux
Thread model: posix
gcc version 3.0.3
>Description:
This case involves calling return in a try/finally block,
and compiling from bytecode.
public class A
{
public static void main(String[] args)
{
try{
return;
}
finally{
}
}
}
gcj compiles correctly from source, but fails on the corresponding
bytecode (attached):
$ gcj A.class
A.java: In class `A':
A.java: In method `A.main(java.lang.String[])':
A.java:6: verification error at PC=8
A.java:6: loading local variable 1 which has unknown type
$ javap -c A.class
Compiled from A.java
public class A extends java.lang.Object {
public A();
public static void main(java.lang.String[]);
}
Method A()
0 aload_0
1 invokespecial #1 <Method java.lang.Object()>
4 return
Method void main(java.lang.String[])
0 jsr 10
3 return
4 astore_1
5 jsr 10
8 aload_1
9 athrow
10 astore_2
11 ret 2
Exception table:
from to target type
0 4 4 any
>How-To-Repeat:
gcj A.class
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Type: application/x-java-vm; name="A.class"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="A.class"
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