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java.lang.NullPointerException: 	at java.io.File.(File.java:222)	at com.sun.enterprise.webservice.monitoring.WebServiceTesterServlet.initializePort(WebServiceTesterServlet.java:524)	at com.sun.enterprise.webservice.monitoring.WebServiceTesterServlet.doGet(WebServiceTesterServlet.java:184)	at com.sun.enterprise.webservice.monitoring.WebServiceTesterServlet.invoke(WebServiceTesterServlet.java:119)	at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:142)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)	at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:114)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:87)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288)	at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647)	at com.sun.enterprise.web.connector.grizzly.comet.CometEngine.executeServlet(CometEngine.java:609)	at com.sun.enterprise.web.connector.grizzly.comet.CometEngine.handle(CometEngine.java:356)	at com.sun.enterprise.web.connector.grizzly.comet.CometAsyncFilter.doFilter(CometAsyncFilter.java:84)	at com.sun.enterprise.web.connector.grizzly.async.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:175)	at com.sun.enterprise.web.connector.grizzly.async.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:153)	at com.sun.enterprise.web.connector.grizzly.async.AsyncProcessorTask.doTask(AsyncProcessorTask.java:92)	at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)	at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)