I am running jboss 5.1 on linux and executing twiddle.sh to get JVM stats.

For 6 months the twiddle call below was working until Oct 3 at 6am the calls started failing with the following Error.   Can someone point me to what's causing this error.

/opt/liferay/jboss-5.1.0/bin/twiddle.sh  -s localhost":1099" 'serverinfo' -d

16:17:54,243 ERROR [Twiddle] Exec failed

java.io.EOFException

        at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)

        at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source)

        at java.io.ObjectInputStream.readStreamHeader(Unknown Source)

        at java.io.ObjectInputStream.<init>(Unknown Source)

        at org.jboss.invocation.http.servlet.InvokerServlet.processRequest(InvokerServlet.java:136)

        at org.jboss.invocation.http.servlet.InvokerServlet.doPost(InvokerServlet.java:224)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

        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.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(Unknown Source)