XFire WS showing HTTP status code 500 on JBoss 5 on SunOS 5.10 after remaining idle for few hours

[Nikul Suthar]

I've an XFire WS deployed on web container "JBoss 5.1.0.EAP" on virtual machine "SunOS iruxpds1z 5.10 Generic_142900-13 sun4v sparc SUNW,T5240". This WS gets deployed successfully, shows the WSDL page properly and functions correctly. But after it remains idle, meaning no requests send overnight or for 7-8 hours, it starts showing HTTP status code 500 for the WSDL page and throws following error log for a WS consumption call:

2012-10-25 04:17:44,849 INFO  [STDOUT] (WorkManager(2)-86) GetMBElementDetailsFromMBWS -- >Execution Script started
2012-10-25 04:17:44,878 INFO  [STDOUT] (WorkManager(2)-86) GetMBElementDetailsFromMBWS -- >Execution Script Ended
2012-10-25 04:17:45,000 ERROR [STDERR] (WorkManager(2)-86) Failed to create icon: java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit
2012-10-25 04:17:45,002 ERROR [STDERR] (WorkManager(2)-86) Failed to create icon: java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit
2012-10-25 04:17:45,005 ERROR [STDERR] (WorkManager(2)-86) Failed to create icon: java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit
2012-10-25 04:17:45,007 ERROR [STDERR] (WorkManager(2)-86) Failed to create icon: java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit
2012-10-25 04:17:45,009 INFO  [STDOUT] (SwingWorker) Progress: 1 - Caching definition from url [http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl]
2012-10-25 04:17:45,057 INFO  [STDOUT] (SwingWorker) Progress: 1 - Loading definition from cache
2012-10-25 04:17:45,057 DEBUG [com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext] (SwingWorker) Loading definition from cache
2012-10-25 04:17:45,060 DEBUG [com.eviware.soapui.impl.wsdl.support.wsdl.WsdlLoader] (SwingWorker) Returning baseInputSource [http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl]
2012-10-25 04:17:45,063 INFO  [STDOUT] (SwingWorker) Retrieving document at 'http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl'.
2012-10-25 04:17:45,078 DEBUG [com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext] (SwingWorker) Loaded definition: ok
2012-10-25 04:17:45,078 INFO  [com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils] (SwingWorker) Loading schema types from [http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl]
2012-10-25 04:17:45,078 INFO  [com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils] (SwingWorker) Getting schema http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl
2012-10-25 04:17:45,092 ERROR [com.eviware.soapui.SoapUI] (SwingWorker) An error occured [org.apache.xmlbeans.XmlException], see error log for details
2012-10-25 04:17:45,092 ERROR [soapui.errorlog] (SwingWorker) org.apache.xmlbeans.XmlException
org.apache.xmlbeans.XmlException
	at org.apache.xmlbeans.XmlBeans.wrappedException(XmlBeans.java:149)
	at org.apache.xmlbeans.XmlBeans.compileXmlBeans(XmlBeans.java:675)
	at org.apache.xmlbeans.XmlBeans.compileXsd(XmlBeans.java:553)
	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.buildSchemaTypes(SchemaUtils.java:266)
	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.loadSchemaTypes(SchemaUtils.java:179)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.loadDefinitions(WsdlContext.java:264)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.access$500(WsdlContext.java:53)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext$Loader.construct(WsdlContext.java:218)
	at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)
	at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) org.apache.xmlbeans.XmlException
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at org.apache.xmlbeans.XmlBeans.wrappedException(XmlBeans.java:149)
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at org.apache.xmlbeans.XmlBeans.compileXmlBeans(XmlBeans.java:675)
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at org.apache.xmlbeans.XmlBeans.compileXsd(XmlBeans.java:553)
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.buildSchemaTypes(SchemaUtils.java:266)
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.loadSchemaTypes(SchemaUtils.java:179)
2012-10-25 04:17:45,093 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.loadDefinitions(WsdlContext.java:264)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.access$500(WsdlContext.java:53)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext$Loader.construct(WsdlContext.java:218)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) 	at java.lang.Thread.run(Thread.java:662)
2012-10-25 04:17:45,094 ERROR [STDERR] (SwingWorker) Caused by: java.lang.ArrayIndexOutOfBoundsException
2012-10-25 04:17:45,094 ERROR [com.eviware.soapui.SoapUI] (SwingWorker) An error occured [com.eviware.soapui.impl.wsdl.support.xsd.SchemaException], see error log for details
2012-10-25 04:17:45,094 ERROR [soapui.errorlog] (SwingWorker) com.eviware.soapui.impl.wsdl.support.xsd.SchemaException
com.eviware.soapui.impl.wsdl.support.xsd.SchemaException
	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.buildSchemaTypes(SchemaUtils.java:273)
	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.loadSchemaTypes(SchemaUtils.java:179)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.loadDefinitions(WsdlContext.java:264)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.access$500(WsdlContext.java:53)
	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext$Loader.construct(WsdlContext.java:218)
	at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)
	at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)
	at java.lang.Thread.run(Thread.java:662)
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) com.eviware.soapui.impl.wsdl.support.xsd.SchemaException
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.buildSchemaTypes(SchemaUtils.java:273)
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.xsd.SchemaUtils.loadSchemaTypes(SchemaUtils.java:179)
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.loadDefinitions(WsdlContext.java:264)
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.access$500(WsdlContext.java:53)
2012-10-25 04:17:45,095 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext$Loader.construct(WsdlContext.java:218)
2012-10-25 04:17:45,096 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)
2012-10-25 04:17:45,096 ERROR [STDERR] (SwingWorker) 	at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)
2012-10-25 04:17:45,096 ERROR [STDERR] (SwingWorker) 	at java.lang.Thread.run(Thread.java:662)
2012-10-25 04:17:45,096 ERROR [com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext] (SwingWorker) Loading of definition failed for [http://10.219.148.67:8080/ADEPMBWebService/services/ADEPMBWebService?wsdl]; com.eviware.soapui.impl.wsdl.support.xsd.SchemaException: Error loading schema types
2012-10-25 04:17:45,096 ERROR [com.eviware.soapui.SoapUI] (SwingWorker) An error occured [Error loading schema types], see error log for details

The same web service war does not show this issue if deployed on the same web container on virtual machine "Red Hat Enterprise Linux Server release 6.1 (Santiago)". Any help would be highly appreciated.