Error while using Devloader for Tomcat 7

0
votes

I just followed this article, and am getting the following error. Googling hasnt helped so far. Please suggest:

Nov 15, 2012 2:06:51 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: .:/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java Nov 15, 2012 2:06:51 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] Nov 15, 2012 2:06:51 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] Nov 15, 2012 2:06:51 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1569 ms Nov 15, 2012 2:06:52 PM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina Nov 15, 2012 2:06:52 PM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.32 Nov 15, 2012 2:06:52 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor /usr/local/apache-tomcat-7.0.32/conf/Catalina/localhost/MavenWeb.xml Nov 15, 2012 2:06:52 PM org.apache.tomcat.util.digester.Digester startElement SEVERE: Begin event threw error java.lang.VerifyError: class org.apache.catalina.loader.DevLoader overrides final method start.()V at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:144) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2756) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537) at org.apache.catalina.startup.ContextConfig.processContextConfig(ContextConfig.java:635) at org.apache.catalina.startup.ContextConfig.contextConfig(ContextConfig.java:599) at org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:837) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:387) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:401) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:110) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:655) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1628) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) 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:680) Nov 15, 2012 2:06:52 PM org.apache.catalina.startup.HostConfig deployDescriptor SEVERE: Error deploying configuration descriptor /usr/local/apache-tomcat-7.0.32/conf/Catalina/localhost/MavenWeb.xml java.lang.VerifyError: class org.apache.catalina.loader.DevLoader overrides final method start.()V at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:144) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2756) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537) at org.apache.catalina.startup.ContextConfig.processContextConfig(ContextConfig.java:635) at org.apache.catalina.startup.ContextConfig.contextConfig(ContextConfig.java:599) at org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:837) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:387) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:401) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:110) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:655) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1628) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) 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:680) Nov 15, 2012 2:06:52 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-bio-8080"] Nov 15, 2012 2:06:52 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["ajp-bio-8009"] Nov 15, 2012 2:06:52 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 243 ms

2
eclipsetomcat7

2 Answers

3
votes

I fixed this by using version 3.3 of the Sysdeo Eclipse Tomcat Launcher plugin (http://www.eclipsetotale.com/tomcatPlugin.html#A3).

For this to work DevLoader.jar needs to be in TOMCAT_HOME/lib.

You'll notice in v3.3 of this plugin, there is both a DevLoader.zip and a DevloaderTomcat7.jar. I copied DevloaderTomcat7.jar over to TOMCAT_HOME/lib and renamed it DevLoader.jar (potentially replacing the existing jar). This fixed my issue.

0
votes

Yes, I get too. As eeuser answered, you should update Sysdeo Eclipse Tomcat, copy DevloaderTomcat7.jar and rename to DevLoader.jar.

If file ${appName}.xml is exist, you need to remove it and update context again.