java.lang.VerifyError: Cannot inherit from final class
843841Oct 22 2003 — edited Oct 30 2003Hi!
I'm developing web application, which uses servlet to exploit my library, and the library works with the database.
So, I tried to use the library in the servlet and got this:
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description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:261)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:632)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:590)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:707)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
at java.lang.Thread.run(Thread.java:536)
root cause
java.lang.VerifyError: Cannot inherit from final class
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
at java.net.URLClassLoader.access$100(URLClassLoader.java:54)
at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at org.apache.catalina.loader.StandardClassLoader.findClass(StandardClassLoader.java:621)
at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:958)
at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:857)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.createContentDispatcher(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.(XMLDocumentFragmentScannerImpl.java:249)
at org.apache.xerces.impl.XMLDocumentScannerImpl.(XMLDocumentScannerImpl.java:245)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.(Unknown Source)
at org.apache.xerces.parsers.IntegratedParserConfiguration.createDocumentScanner(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.(DTDConfiguration.java:367)
at org.apache.xerces.parsers.StandardParserConfiguration.(StandardParserConfiguration.java:198)
at org.apache.xerces.parsers.IntegratedParserConfiguration.(Unknown Source)
at org.apache.xerces.parsers.IntegratedParserConfiguration.(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:306)
at java.lang.Class.newInstance(Class.java:259)
at org.apache.xerces.util.ObjectFactory.newInstance(ObjectFactory.java:266)
at org.apache.xerces.util.ObjectFactory.findJarServiceProvider(ObjectFactory.java:360)
at org.apache.xerces.util.ObjectFactory.createObject(ObjectFactory.java:185)
at org.apache.xerces.util.ObjectFactory.createObject(ObjectFactory.java:120)
at org.apache.xerces.parsers.SAXParser.(SAXParser.java:140)
at org.apache.xerces.parsers.SAXParser.(SAXParser.java:125)
at dbcore.ConnectionsManager.(ConnectionsManager.java:21)
at dbcore.DbObject.(DbObject.java:19)
at dbcore.jdbc.JdbcDbObject.(JdbcDbObject.java:5)
at dbcore.jdbc.JdbcRecData.(JdbcRecData.java:13)
at dbcore.jdbc.JdbcRecord.(JdbcRecord.java:10)
at dbcore.jdbc.JdbcRecord_Id.(JdbcRecord_Id.java:34)
at dbcore.jdbc.JdbcRecord_Id_Name.(JdbcRecord_Id_Name.java:14)
at dbfacade.jdbc.JdbcUser.(JdbcUser.java:28)
at dbfacade.jdbc.JdbcFacadeFactory.getUser(JdbcFacadeFactory.java:18)
at UsePersistence.doPost(UsePersistence.java:29)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:261)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:360)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:632)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:590)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:707)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
at java.lang.Thread.run(Thread.java:536)
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Could anybode help me to solve the problem, please???