https://issues.apache.org/bugzilla/show_bug.cgi?id=49072
Summary: NullPointerException in Request.removeAttribute
Product: Tomcat 6
Version: 6.0.24
Platform: HP
OS/Version: Windows Server 2008 (Longhorn)
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
AssignedTo: dev@tomcat.apache.org
ReportedBy: mhn4...@googlemail.com
I found following NPE very often in the tomcat log after running a loadtest
with JMeter:
java.lang.NullPointerException
at org.apache.catalina.connector.Request.removeAttribute(Request.java:1377)
at
org.apache.catalina.connector.RequestFacade.removeAttribute(RequestFacade.java:514)
at
org.apache.myfaces.context.servlet.RequestMap.removeAttribute(RequestMap.java:59)
at
org.apache.myfaces.util.AbstractAttributeMap.remove(AbstractAttributeMap.java:121)
at
org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.unsetScope(FacesCompositeELResolver.java:196)
at
org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:144)
at com.foo.client.web.faces.FCFactory.getManagedBean(FCFactory.java:61)
at
com.foo.client.web.servlets.AbstractFacesServlet.getManagedBean(AbstractFacesServlet.java:147)
at
com.foo.client.web.servlets.NativeDocumentServlet.service(NativeDocumentServlet.java:84)
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 com.foo.client.web.filters.LoginFilter.doFilter(LoginFilter.java:183)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
Source
1376 // Notify interested application event listeners
1377 Object listeners[] = context.getApplicationEventListeners();
context is null obviously.
Pls check for null and return in this case to prevent the NPE
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