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Posted to bcel-dev@jakarta.apache.org by bu...@apache.org on 2006/06/27 16:44:41 UTC

DO NOT REPLY [Bug 39911] New: - BCEL 5.2 - MethodGen does not initialize max_stack and max_locals properly

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http://issues.apache.org/bugzilla/show_bug.cgi?id=39911

           Summary: BCEL 5.2 - MethodGen does not initialize max_stack and
                    max_locals properly
           Product: BCEL
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: Main
        AssignedTo: bcel-dev@jakarta.apache.org
        ReportedBy: alkinneer@hotmail.com


The constructor for MethodGen:

public MethodGen(Method, String, ConstantPoolGen)

does not properly initialize the max_stack and max_local variables from the
Method object. Thus the following sequence of actions will produce a
non-verifying class, even though it clearly shouldn't:

ClassGen cg = new ClassGen(javaClass);
Method m = cg.getMethodAt(0);
MethodGen mg = new MethodGen(m, cg.getClassName(), cg.getConstantPool());
cg.setMethodAt(mg.getMethod(), 0);
cg.getJavaClass().dump(...);

Bug can be fixed by adding the following the constructor:

Code c = m.getCode();
max_stack = c.getMaxStack();
max_locals = c.getMaxLocals();

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DO NOT REPLY [Bug 39911] - BCEL 5.2 - MethodGen does not initialize max_stack and max_locals properly

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=39911>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=39911


alkinneer@hotmail.com changed:

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




------- Additional Comments From alkinneer@hotmail.com  2006-08-15 15:07 -------
Whoops, code confusion with a subclass.

*Puts on dunce hat and sits in corner for 15 minutes*

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