the below JCK 1.3a tests fail with -Xcomp on solaris and linux with 1.3.1_16. Do not fail with 1.3.1_15.

  api/java_rmi/server/RemoteServer/index_GetClientHost.jtr
  api/java_rmi/rmic/stub12/TestRemote10/index_NonRemoteMethod.jtr
  api/java_rmi/rmic/stub12/TestRemote0/index_Void.jtr
  api/java_rmi/rmic/stub12/TestRemote1/index_Several.jtr

to reproduce :

cd /java/re/jck/1.3a/archive/fcs/binaries/JCK-compiler-13a/

bash-2.00$ /java/re/jdk/1.3.1_16/promoted/latest/binaries/solaris-sparc/bin/javac -classpath classes:javatest.jar -J-Xcomp -J-Xbatch -d /tmp tests/api/java_rmi/server/RemoteServer/GetClientHostTests.java

cd /tmp

bash-2.00$ /java/re/jdk/1.3.1_15/latest/binaries/solaris-sparc/bin/rmic -server -keep -verbose -J-Xbatch -J-XX:+PrintCompilation -J-Xcomp -d /tmp javasoft.sqe.tests.api.java.rmi.server.RemoteServer.GetClHostImpl

Unexpected Signal : 11 occurred at PC=0xFECBFE14
Function name=JVM_CurrentTimeMillis
Library=/net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc/jre/lib
/sparc/server/libjvm.so

Current Java thread:

Dynamic libraries:
0x10000 /java/re/jdk/1.3.1_16/promoted/latest/binaries/solaris-sparc/bin
/../bin/sparc/native_threads/rmic
0xff370000 /usr/lib/libthread.so.1
0xff3a0000 /usr/lib/libdl.so.1
0xff280000 /usr/lib/libc.so.1
0xff350000 /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1
0xfec00000 /net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc
/jre/lib/sparc/server/libjvm.so
0xff240000 /usr/lib/libCrun.so.1
0xff210000 /usr/lib/libsocket.so.1
0xfeb00000 /usr/lib/libnsl.so.1
0xff1e0000 /usr/lib/libm.so.1
0xff360000 /usr/lib/libw.so.1
0xff1b0000 /usr/lib/libmp.so.2
0xff190000 /usr/lib/librt.so.1
0xff170000 /usr/lib/libaio.so.1
0xfebe0000 /usr/lib/libmd5.so.1
0xfeae0000 /usr/platform/SUNW,Ultra-5_10/lib/libmd5_psr.so.1
0xfeab0000 /net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc
/jre/lib/sparc/native_threads/libhpi.so
0xfea80000 /net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc
/jre/lib/sparc/libverify.so
0xfea30000 /net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc
/jre/lib/sparc/libjava.so
0xfea00000 /net/jre.sfbay/p/v09/jdk/1.3.1_16/fcs/b06/binaries/solaris-sparc
/jre/lib/sparc/libzip.so

Local Time = Tue Jul 26 15:37:44 2005
Elapsed Time = 47
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002BF 01
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Server VM (1.3.1_16-b06 compiled mode)
#
# An error report file has been saved as hs_err_pid6855.log.
# Please refer to the file for further information.
#
Abort (core dumped)

The offending compile
has been narrowed down to Context class.

The cause appears to be due to the code change in
file: ./share/vm/opto/parse1.cpp in the method Parse::merge().

According to the Putback comments, this change was made
to resolve:
   5049411: JVM crashes at assert(!n->is_Phi() && !n->is_CFG(),..) with java_g
                   in 1.3.1_11

The diff lines changed for 1.3.1_16 are (
diff ###@###.###_15 ###@###.###_16:
---------------------------------------
@@ -1164,12 +1164,11 @@
           if( (n == _top || _map->in(j)== _top) && _map->in(0) != _top ) {
             _map->set_req(j, _top);
             // Dead Phi, so degrade the Phi to TOP
             if( p->Opcode() == Op_Phi && // Phi already?
               p->in(0) == r ) { // And of this merge point?
- p->set_req(0, NULL); // Unique value; degrade to Copy
- p->set_req(1, _top);
+ p->set_req(pnum, _top);
               _gvn._types.map(p->_idx,Type::TOP);
             }
             continue;
           }
           break;
------------------------------------------------------

If the control input is set to NULL (degrade to copy),
the the test case works OK (i.e. put line 1169 back).