I'm seeing many failures in web devtests with the following log
[#|2012-06-15T10:58:56.802-0700|SEVERE|44.0|javax.enterprise.system.tools.admin.com.sun.enterprise.v3.admin|_ThreadID=12;_ThreadName=Thread-2;|Exception in command execution : java.lang.NullPointerException
java.lang.NullPointerException
at com.sun.enterprise.config.util.zeroconfig.ZeroConfigUtils.isConfigElementPresent(ZeroConfigUtils.java:433)
at com.sun.enterprise.v3.admin.SetCommand.set(SetCommand.java:218)
at com.sun.enterprise.v3.admin.SetCommand.execute(SetCommand.java:142)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:497)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:518)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1287)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:111)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1557)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1520)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:590)
at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:236)
at org.glassfish.grizzly.http.server.StaticHttpHandler.service(StaticHttpHandler.java:298)
at com.sun.enterprise.v3.server.HK2Dispatcher.dispatch(HK2Dispatcher.java:113)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:236)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:164)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:169)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:265)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:134)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:78)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:815)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:567)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:547)
at java.lang.Thread.run(Thread.java:619)