Recent java warnings reveal bugs (?)

Kaveh R. Ghazi
Tue May 9 10:32:00 GMT 2000

I'm getting two warnings from the java dir in last night's CVS which
might reveal bugs:

 > ./parse.y:10000: warning: `rlist' might be used uninitialized in this
 > 	function
 > ../../../egcs-CVS20000508/gcc/java/jcf-write.c:849: warning:
 > 	comparison between signed and unsigned

Here's the code in question:

 >        tree rlist;
 >        if (t != object_type_node)
 >          rlist = find_applicable_accessible_methods_list (lc, t,
 >                                                           name, arglist);
 >        list = chainon (rlist, list);

In the above case, rlist is definitely uninitialized when the if
statement's clause isn't taken.  Perhaps the last statement setting
`list' should be in the if-clause within braces?

 >           || (hi == -1 && (jword)(lo & 0xFFFFFFFF) >= -32768))

Here it looks like jword (an unsigned value) is being compared against
a negative value.  If it is intentional then the negative value
probably should be cast to a jword.

Kaveh R. Ghazi			Engagement Manager / Project Services		Qwest Internet Solutions

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