Some clustered tests are failing with IBM JDK 1.5.

This is the list:
org.jboss.test.cluster.defaultcfg.web.field.test.FieldBasedSessionPassivationTestCase
org.jboss.test.cluster.defaultcfg.web.field.test.ScopedFieldBasedTestCase
org.jboss.test.cluster.multicfg.web.field.test.FieldBasedTestCase
org.jboss.test.cluster.multicfg.web.field.test.UndeployFieldTestCase

In total this cause 105 failures in the AS testsuite (the test cases are run several times with different clustering configuration).

The failures all look the same. This is an example from org.jboss.test.cluster.defaultcfg.web.field.test.FieldBasedSessionPassivationTestCase.testSessionPassivationWMaxIdle:
Get OK with url: http://10.16.93.37:8080/http-field-pass/setSession.jsp responseCode: 500
junit.framework.AssertionFailedError: Get OK with url: http://10.16.93.37:8080/http-field-pass/setSession.jsp responseCode: 500
at org.jboss.test.cluster.testutil.WebTestBase.makeGet(WebTestBase.java:115)
at org.jboss.test.cluster.defaultcfg.web.test.SessionPassivationTestCase.testSessionPassivationWMaxIdle(SessionPassivationTestCase.java:155)
at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
at junit.extensions.TestSetup$1.protect(TestSetup.java:21)
at junit.extensions.TestSetup.run(TestSetup.java:25)

In the server log, you can see errors like this:
17:14:48,650 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at org.jboss.aop.Domain$1.run(Domain.java:124)
at org.jboss.aop.Domain$1.run(Domain.java:121)
at java.security.AccessController.doPrivileged(AccessController.java:197)
at org.jboss.aop.Domain.getDomainName(Domain.java:119)
at org.jboss.test.cluster.web.aop.Person$PersonAdvisor.initialise(Person$PersonAdvisor.java)
at org.jboss.test.cluster.web.aop.Person$PersonAdvisor.<init>(Person$PersonAdvisor.java)
at org.jboss.test.cluster.web.aop.Person.<clinit>(Person.java)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:196)
at org.apache.jsp.setSession_jsp._jspService(setSession_jsp.java:65)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:135)
at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:94)
at org.jboss.web.tomcat.service.session.LockingValve.invoke(LockingValve.java:62)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:810)