NPE is occur during of getting WSDL.
------------------------------------
Key: AXIS2-4511
URL: https://issues.apache.org/jira/browse/AXIS2-4511
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Affects Versions: 1.4
Environment: FreeBSD 6.2, Diablo JDK 1.5, Tomcat 6
Reporter: Denis
Priority: Critical
We experienced this problem with Axis2 running under Tomcat 6 with many
concurrent users above 1000.
Full stacktrace:
29.09.2009 7:57:44 org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet AxisServlet threw exception
java.lang.NullPointerException
at org.apache.xerces.dom.ParentNode.nodeListItem(Unknown Source)
at org.apache.xerces.dom.ParentNode.item(Unknown Source)
at com.ibm.wsdl.util.xml.DOM2Writer.print(Unknown Source)
at com.ibm.wsdl.util.xml.DOM2Writer.print(Unknown Source)
at com.ibm.wsdl.util.xml.DOM2Writer.print(Unknown Source)
at com.ibm.wsdl.util.xml.DOM2Writer.serializeAsXML(Unknown Source)
at com.ibm.wsdl.extensions.schema.SchemaSerializer.marshall(Unknown
Source)
at com.ibm.wsdl.xml.WSDLWriterImpl.printExtensibilityElements(Unknown
Source)
at com.ibm.wsdl.xml.WSDLWriterImpl.printTypes(Unknown Source)
at com.ibm.wsdl.xml.WSDLWriterImpl.printDefinition(Unknown Source)
at com.ibm.wsdl.xml.WSDLWriterImpl.writeWSDL(Unknown Source)
at com.ibm.wsdl.xml.WSDLWriterImpl.writeWSDL(Unknown Source)
at
org.apache.axis2.description.AxisService.printDefinitionObject(AxisService.java:1049)
at
org.apache.axis2.description.AxisService.printUserWSDL(AxisService.java:1063)
at
org.apache.axis2.description.AxisService.printWSDL(AxisService.java:1311)
at
org.apache.axis2.transport.http.ListingAgent.processListService(ListingAgent.java:287)
at
org.apache.axis2.transport.http.AxisServlet.doGet(AxisServlet.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
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