Test : JarFile
TestBase : JCK
Mode : -Xcomp
OS : win32

Steps to reproduce :
1. cd /net/sqesvr.eng/export/vsn/GammaBase/Bugs/{BugID}
2. doit

Output :
java version "1.3.1beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1beta-b12)
Java HotSpot(TM) Server VM (build 1.3.1beta-b12, compiled mode)

.
.
java.lang.SecurityException: cannot verify signature block file META-INF/MYKEY
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:151)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:284)
        at java.util.jar.JarVerifier.update(JarVerifier.java:197)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:248)
        at java.util.jar.JarFile.getInputStream(JarFile.java:310)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.JarFile0031(CtorTests.java:1336)
        at java.lang.reflect.Method.invoke(Native Method)
        at javasoft.sqe.jck.lib.MultiTest.runTests(MultiTest.java:139)
        at javasoft.sqe.jck.lib.MultiTest.run(MultiTest.java:101)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.main(CtorTests.java:125)
java.lang.SecurityException: cannot verify signature block file META-INF/MYKEY
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:151)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:284)
        at java.util.jar.JarVerifier.update(JarVerifier.java:197)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:248)
        at java.util.jar.JarFile.getInputStream(JarFile.java:310)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.JarFile0104(CtorTests.java:1520)
        at java.lang.reflect.Method.invoke(Native Method)
        at javasoft.sqe.jck.lib.MultiTest.runTests(MultiTest.java:139)
        at javasoft.sqe.jck.lib.MultiTest.run(MultiTest.java:101)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.main(CtorTests.java:125)
java.lang.SecurityException: cannot verify signature block file META-INF/MYKEY
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:151)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:284)
        at java.util.jar.JarVerifier.update(JarVerifier.java:197)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:248)
        at java.util.jar.JarFile.getInputStream(JarFile.java:310)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.JarFile0108(CtorTests.java:1705)
        at java.lang.reflect.Method.invoke(Native Method)
        at javasoft.sqe.jck.lib.MultiTest.runTests(MultiTest.java:139)
        at javasoft.sqe.jck.lib.MultiTest.run(MultiTest.java:101)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.main(CtorTests.java:125)
java.lang.SecurityException: cannot verify signature block file META-INF/MYKEY
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:151)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:284)
        at java.util.jar.JarVerifier.update(JarVerifier.java:197)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:248)
        at java.util.jar.JarFile.getInputStream(JarFile.java:310)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.JarFile0124(CtorTests.java:2377)
        at java.lang.reflect.Method.invoke(Native Method)
        at javasoft.sqe.jck.lib.MultiTest.runTests(MultiTest.java:139)
        at javasoft.sqe.jck.lib.MultiTest.run(MultiTest.java:101)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.main(CtorTests.java:125)
java.lang.SecurityException: cannot verify signature block file META-INF/MYKEY
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:151)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:284)
        at java.util.jar.JarVerifier.update(JarVerifier.java:197)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:248)
        at java.util.jar.JarFile.getInputStream(JarFile.java:310)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.JarFile0126(CtorTests.java:2467)
        at java.lang.reflect.Method.invoke(Native Method)
        at javasoft.sqe.jck.lib.MultiTest.runTests(MultiTest.java:139)
        at javasoft.sqe.jck.lib.MultiTest.run(MultiTest.java:101)
        at javasoft.sqe.tests.api.java.util.jar.JarFile.CtorTests.main(CtorTests.java:125)
.
.

This test passes in -Xint mode or with compiler1 which indicate it to be the compiler2 bug.