Exception when using SimpleBroadcaster instead of the default.

[JosefK]

Atmosphere version 1.0.6.
Way to reproduce:

In gwt-chat example, change line 53 of ChatHandler.java to:

Broadcaster broadcaster = BroadcasterFactory.getDefault().lookup(SimpleBroadcaster.class, room, true);

Deploy it (on glassfish 3.1.x with websockets disabled - btw. turning on websockets on glassfish gives another, different exception - I'll file this one too when I examine it and it turns out to be because of the atmosphere).

The thrown exception should be:

java.lang.NullPointerException
at org.atmosphere.cpr.DefaultBroadcaster.entryDone(DefaultBroadcaster.java:1192)
at org.atmosphere.cpr.DefaultBroadcaster.executeAsyncWrite(DefaultBroadcaster.java:882)
at org.atmosphere.util.SimpleBroadcaster.queueWriteIO(SimpleBroadcaster.java:173)
at org.atmosphere.cpr.DefaultBroadcaster.deliverPush(DefaultBroadcaster.java:748)
at org.atmosphere.cpr.DefaultBroadcaster.push(DefaultBroadcaster.java:659)
at org.atmosphere.util.SimpleBroadcaster.broadcast(SimpleBroadcaster.java:120)
at org.atmosphere.gwt.server.AtmosphereGwtHandler.broadcast(AtmosphereGwtHandler.java:414)
at org.atmosphere.gwt.server.AtmosphereGwtHandler.doServerMessage(AtmosphereGwtHandler.java:326)
at org.atmosphere.gwt.server.AtmosphereGwtHandler.onRequest(AtmosphereGwtHandler.java:215)
at org.atmosphere.cpr.AsynchronousProcessor.action(AsynchronousProcessor.java:256)
at org.atmosphere.cpr.AsynchronousProcessor.suspended(AsynchronousProcessor.java:166)
at org.atmosphere.container.GrizzlyCometSupport.service(GrizzlyCometSupport.java:119)
at org.atmosphere.container.GlassFishWebSocketSupport.service(GlassFishWebSocketSupport.java:66)
at org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:1307)
at org.atmosphere.cpr.AtmosphereServlet.doPost(AtmosphereServlet.java:293)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.comet.CometEngine.executeServlet(CometEngine.java:459)
at com.sun.grizzly.comet.CometEngine.handle(CometEngine.java:316)
at com.sun.grizzly.comet.CometAsyncFilter.doFilter(CometAsyncFilter.java:87)
at com.sun.grizzly.arp.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:171)
at com.sun.grizzly.arp.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:143)
at com.sun.grizzly.arp.AsyncProcessorTask.doTask(AsyncProcessorTask.java:102)
at com.sun.grizzly.http.TaskBase.run(TaskBase.java:193)
at com.sun.grizzly.http.TaskBase.execute(TaskBase.java:175)
at com.sun.grizzly.arp.DefaultAsyncHandler.handle(DefaultAsyncHandler.java:145)
at com.sun.grizzly.arp.AsyncProtocolFilter.execute(AsyncProtocolFilter.java:210)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)

The exception is thrown because SimpleBroadcaster's getExecutorService returns null and entryDone method expects non-null value.

[jfarcand]

Update to 1.0.7, this issue has been fixed.