https://issues.apache.org/bugzilla/show_bug.cgi?id=52009
Bug #: 52009
Summary: NPE exception in
org.apache.catalina.connector.CoyoteAdapter.service
Product: Tomcat 7
Version: 7.0.22
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: major
Priority: P2
Component: Connectors
AssignedTo: dev@tomcat.apache.org
ReportedBy: viola...@gmail.com
Classification: Unclassified
1. I copied activemq-all-5.4.2.jar, commons-logging-1.1.jar to tomcat lib
folder
2. Edit tomcat-user.xml, context.xml, server.xml as below:
Changes in server.xml:
<Resource name="jms/broker" auth="Container"
type="org.apache.activemq.ActiveMQConnectionFactory" description="JMS
Connection Factory"
factory="org.apache.activemq.jndi.JNDIReferenceFactory"
brokerURL="tcp://localhost:61616" brokerName="ActiveMQBroker"
useEmbeddedBroker="false" />
<Resource name="jms/topic/MyTopic" auth="Container"
type="org.apache.activemq.command.ActiveMQTopic"
factory="org.apache.activemq.jndi.JNDIReferenceFactory"
physicalName="APP.JMS.TOPIC" />
<Resource name="jms/queue/MyQueue" auth="Container"
type="org.apache.activemq.command.ActiveMQQueue"
factory="org.apache.activemq.jndi.JNDIReferenceFactory"
physicalName="APP.JMS.QUEUE" />
<Connector acceptorThreadPriority="1" allowTrace="true" asyncTimeout="10000"
connectionLinger="25" connectionTimeout="60000" name="NIOConnector"
pollerThreadPriority="1" port="8888"
protocol="org.apache.coyote.http11.Http11NioProtocol" redirectPort="8443"
tcpNoDelay="false"/>
Changes in context.xml
<ResourceLink global="jms/broker" name="jms/broker"
type="javax.jms.ConnectionFactory"/>
<ResourceLink global="jms/topic/MyTopic" name="jms/topic/MyTopic"
type="javax.jms.Topic"/>
<ResourceLink global="jms/queue/MyQueue" name="jms/queue/MyQueue"
type="javax.jms.Queue"/>
You can also get these file from attached zip
Then access
http://localhost:8080/manager/text/resources, got three JMS resource i defined
OK - Listed global resources of all types
jms/topic/MyTopic:org.apache.activemq.command.ActiveMQTopic
jms/queue/MyQueue:org.apache.activemq.command.ActiveMQQueue
jms/broker:org.apache.activemq.ActiveMQConnectionFactory
UserDatabase:org.apache.catalina.users.MemoryUserDatabase
3. Start apache-activemq-5.4.2, create topic APP.JMS.TOPIC, and queque:
APP.JMS.QUEUE
4. Put sample files QuoteStreamerApp.war as attached in webapp folder, then it
will report errors, but if don't define NIO connector, this error doesn't exist
2011-10-11 15:53:01 org.apache.catalina.startup.HostConfig checkResources
INFO: Undeploying context [/QuoteStreamerApp]
2011-10-11 15:53:11 org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive QuoteStreamerApp.war
2011-10-11 15:53:52 com.ibm.websphere.webmsg.quotestreamer.AppInit init
INFO: DataSimulator successfully created and set and started.
2011-10-11 15:54:01 com.ibm.webmsg.example.StockServlet setProperties
INFO: Configured properties for quote streamer requests.
2011-10-11 15:54:02 com.ibm.webmsg.example.StockServlet registerURL
INFO: Registered the URL for comet requests.
2011-10-11 15:54:02 org.apache.coyote.http11.AbstractHttp11Processor process
SEVERE: Error processing request
java.lang.NullPointerException
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:970)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1550)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
2011-10-11 15:54:02 org.apache.coyote.http11.AbstractHttp11Processor process
SEVERE: Error processing request
java.lang.NullPointerException
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:970)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1550)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
2011-10-11 15:54:04 org.apache.coyote.http11.AbstractHttp11Processor process
SEVERE: Error processing request
java.lang.NullPointerException
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:970)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1550)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
2011-10-11 15:54:04 org.apache.coyote.http11.AbstractHttp11Processor process
SEVERE: Error processing request
java.lang.NullPointerException
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:970)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1550)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
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