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Java.util.logging.logger issue
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created by <a href="http://community.jboss.org/people/karthick_123">Karthick M</a> in <i>Beginner's Corner</i> - <a href="http://community.jboss.org/message/569502#569502">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am new to Jboss EAP. Currently we are in process of migrating application into Jboss EAP 5.1.0. While application trying to print log message using java.util.logging.Logger info() method, it is throwing NULL pointer exception.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Please help me to resolve this issue:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Sample code from app:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.util.logging.Logger;</p><p>public class sampleServlet</p><p>{</p><p>     Logger debug = Logger.getAnonymousLogger();</p><p>     debug.info("----------- start web stats ------------");</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Error message:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>16:58:32,188 ERROR [[SSNValidationServlet]] Servlet.service() for servlet SSNValidationServlet threw exception<br/>java.lang.NullPointerException<br/>        at org.apache.log4j.CategoryKey.<init>(CategoryKey.java:31)<br/>        at org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:261)<br/>        at org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:242)<br/>        at org.apache.log4j.LogManager.getLogger(LogManager.java:188)<br/>        at org.apache.log4j.Logger.getLogger(Logger.java:104)<br/>        at org.jboss.logbridge.LogBridgeHandler.publish(LogBridgeHandler.java:71)<br/>        at java.util.logging.Logger.log(Logger.java:458)<br/>        at java.util.logging.Logger.doLog(Logger.java:480)<br/>        at java.util.logging.Logger.log(Logger.java:503)<br/>        at java.util.logging.Logger.info(Logger.java:1022)<br/>        at com.putnaminv.corpapps.ElinkingApp.SSNValidationServlet.doPost(SSNValidationServlet.java:114)<br/>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)<br/>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)<br/>        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)<br/>        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>        at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)<br/>        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)<br/>        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)<br/>        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)<br/>        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)<br/>        at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183)<br/>        at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95)<br/>        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)<br/>        at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)<br/>        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)<br/>        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br/>        at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)<br/>        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br/>        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)<br/>        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)<br/>        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)<br/>        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451)<br/>        at java.lang.Thread.run(Thread.java:619)<br/>16:59:59,314 INFO  [ServerImpl] Runtime shutdown hook called, forceHalt: true<br/>16:59:59,314 INFO  [Http11Protocol] Pausing Coyote HTTP/1.1 on http-127.0.0.1-8080</p></div>
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