gcj/102: crashes when compiling try block from java source

[gback at cs dot utah dot edu]

>Number:         102
>Category:       gcj
>Synopsis:       crashes when compiling try block from java source
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apbianco
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 16 09:40:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     gback@cs.utah.edu
>Release:        CVS around Oct 15
>Organization:
>Environment:
Linux RH 5.2, glibc 2.0.7, Kernel 2.2.12
>Description:
jc1 crashes on this input:

Program received signal SIGSEGV, Segmentation fault.
qualify_ambiguous_name (id=0x82990e0) at ./parse.y:7820
./parse.y:7820: No such file or directory.
(gdb) bt
#0  qualify_ambiguous_name (id=0x82990e0) at ./parse.y:7820
#1  0x8055df9 in resolve_expression_name (id=0x82990e0, orig=0x0)
    at ./parse.y:6463
#2  0x805886e in java_complete_lhs (node=0x82990e0) at ./parse.y:8386
#3  0x8058083 in java_complete_tree (node=0x82990e0) at ./parse.y:8024
#4  0x80588bc in java_complete_lhs (node=0x8299120) at ./parse.y:8403
#5  0x8058083 in java_complete_tree (node=0x8299120) at ./parse.y:8024
#6  0x8058256 in java_complete_lhs (node=0x8298cf0) at ./parse.y:8148
#7  0x8058083 in java_complete_tree (node=0x8298cf0) at ./parse.y:8024
#8  0x805d28f in patch_try_statement (node=0x82997fc) at ./parse.y:11602
#9  0x80582fe in java_complete_lhs (node=0x82997fc) at ./parse.y:8174
#10 0x8058083 in java_complete_tree (node=0x82997fc) at ./parse.y:8024
#11 0x8058256 in java_complete_lhs (node=0x8298bcc) at ./parse.y:8148
#12 0x8058083 in java_complete_tree (node=0x8298bcc) at ./parse.y:8024
#13 0x8058256 in java_complete_lhs (node=0x8298620) at ./parse.y:8148
#14 0x8058083 in java_complete_tree (node=0x8298620) at ./parse.y:8024
#15 0x805571a in java_complete_expand_method (mdecl=0x82984e4)
    at ./parse.y:6112
#16 0x80555b3 in java_complete_expand_methods () at ./parse.y:6047
#17 0x80559f4 in java_expand_classes () at ./parse.y:6273
#18 0x8072114 in yyparse () at ../../../egcs/gcc/java/jcf-parse.c:902
#19 0x807b61a in compile_file (name=0xbffffbb7 "C.java")
    at ../../egcs/gcc/toplev.c:3200
#20 0x807eb87 in main (argc=8, argv=0xbffffa64) at ../../egcs/gcc/toplev.c:5555

>How-To-Repeat:
Try to compile this program:

import java.io.*;

public class C {
        public static void main(String av[]) {
                String x = null, y = null, z = null;
                LineNumberReader r = new LineNumberReader(
                                        new InputStreamReader(System.in));
                try {
                        x = r.readLine();
                        y = r.readLine();
                        z = r.readLine();
                        ((String)null).hashCode();
                } catch (Exception e) {
                        System.out.println(x);
                        System.out.println(y);
                        System.out.println(z);
                }
        }
}

>Fix:
None
>Release-Note:
>Audit-Trail:
>Unformatted: