Comment 1 for bug 592645

I did the same in my local UEC installation (lucid) and this is what I got on the CC's error log:

16:01:56 [DefaultServiceExceptionStrategy:New I/O server worker #1-38] ERROR
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Message : Component that caused exception is: VmMetadata. Message payload is of type: String
Type : org.mule.api.service.ServiceException
Code : MULE_ERROR--2
Payload : 192.168.2.130:meta-data/foobar
JavaDoc : http://mule.mulesource.org/docs/apidocs/org/mule/api/service/ServiceException.html
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Exception stack is:
1. null (java.lang.NullPointerException)
  edu.ucsb.eucalyptus.cloud.cluster.VmInstance:321 (null)
2. Component that caused exception is: VmMetadata. Message payload is of type: String (org.mule.api.service.ServiceException)
  org.mule.component.DefaultLifecycleAdapter:214 (http://mule.mulesource.org/docs/apidocs/org/mule/api/service/ServiceException.html)
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Root Exception stack trace:
java.lang.NullPointerException
 at edu.ucsb.eucalyptus.cloud.cluster.VmInstance.getByKey(VmInstance.java:321)
 at edu.ucsb.eucalyptus.cloud.ws.VmMetadata.handle(VmMetadata.java:88)
 at sun.reflect.GeneratedMethodAccessor194.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:616)
 at org.mule.model.resolvers.AbstractEntryPointResolver.invokeMethod(AbstractEntryPointResolver.java:147)
 at org.mule.model.resolvers.ReflectionEntryPointResolver.invoke(ReflectionEntryPointResolver.java:127)
 at org.mule.model.resolvers.DefaultEntryPointResolverSet.invoke(DefaultEntryPointResolverSet.java:50)
 at org.mule.component.DefaultLifecycleAdapter.intercept(DefaultLifecycleAdapter.java:202)
 at org.mule.component.AbstractJavaComponent.invokeComponentInstance(AbstractJavaComponent.java:82)
 at org.mule.component.AbstractJavaComponent.doOnCall(AbstractJavaComponent.java:73)
 at org.mule.component.AbstractComponent.onCall(AbstractComponent.java:87)
 at org.mule.model.seda.SedaService.doSend(SedaService.java:234)
 at org.mule.service.AbstractService.sendEvent(AbstractService.java:510)
 at org.mule.DefaultMuleSession.sendEvent(DefaultMuleSession.java:351)
 at org.mule.routing.inbound.DefaultInboundRouterCollection.send(DefaultInboundRouterCollection.java:196)
 at org.mule.routing.inbound.DefaultInboundRouterCollection.route(DefaultInboundRouterCollection.java:164)
 at org.mule.transport.AbstractMessageReceiver$DefaultInternalMessageListener.onMessage(AbstractMessageReceiver.java:604)
 at org.mule.transport.AbstractMessageReceiver.routeMessage(AbstractMessageReceiver.java:346)
 at org.mule.transport.AbstractMessageReceiver.routeMessage(AbstractMessageReceiver.java:269)
 at org.mule.transport.vm.VMMessageReceiver.onCall(VMMessageReceiver.java:106)
 at org.mule.transport.vm.VMMessageDispatcher.doSend(VMMessageDispatcher.java:104)
 at org.mule.transport.AbstractMessageDispatcher.send(AbstractMessageDispatcher.java:157)
 at org.mule.transport.AbstractConnector.send(AbstractConnector.java:1889)
 at org.mule.endpoint.DefaultOutboundEndpoint.send(DefaultOutboundEndpoint.java:76)
 at org.mule.DefaultMuleSession.sendEvent(DefaultMuleSession.java:324)
 at org.mule.module.client.MuleClient.send(MuleClient.java:653)
 at org.mule.module.client.MuleClient.send(MuleClient.java:630)
 at org.mule.module.client.MuleClient.send(MuleClient.java:583)
 at com.eucalyptus.ws.util.Messaging.send(Messaging.java:102)
 at com.eucalyptus.ws.server.MetadataPipeline.handleUpstream(MetadataPipeline.java:68)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at com.eucalyptus.ws.server.NioServerHandler.messageReceived(NioServerHandler.java:119)
 at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:87)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:114)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:385)
 at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndfireMessageReceived(ReplayingDecoder.java:459)
 at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:443)
 at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:381)
 at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:87)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at org.jboss.netty.handler.timeout.ReadTimeoutHandler.messageReceived(ReadTimeoutHandler.java:146)
 at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:87)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at org.jboss.netty.handler.timeout.IdleStateHandler.messageReceived(IdleStateHandler.java:214)
 at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:87)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:159)
 at com.eucalyptus.ws.handlers.ChannelStateMonitor.messageReceived(ChannelStateMonitor.java:62)
 at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:105)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:803)
 at com.eucalyptus.ws.handlers.http.NioSslHandler.handleUpstream(NioSslHandler.java:31)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:567)
 at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:562)
 at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:342)
 at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:329)
 at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:330)
 at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:282)
 at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:203)
 at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:110)
 at org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:53)
 at org.jboss.netty.handler.execution.MemoryAwareThreadPoolExecutor$MemoryAwareRunnable.run(MemoryAwareThreadPoolExecutor.java:502)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
 at java.lang.Thread.run(Thread.java:636)

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