Java.lang.VerifyError: Cannot inherit from final class

Hi i am trying to call a crystal report from jsp but i am getting this error
error:-
org.apache.jasper.JasperException: Cannot inherit from final class
 org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:460)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:355)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
javax.servlet.ServletException: Cannot inherit from final class
 org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:841)
 org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:774)
 org.apache.jsp._1_jsp._jspService(_1_jsp.java:95)
 org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.VerifyError: Cannot inherit from final class
 java.lang.ClassLoader.defineClass1(Native Method)
 java.lang.ClassLoader.defineClass(Unknown Source)
 java.security.SecureClassLoader.defineClass(Unknown Source)
 org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1853)
 org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:875)
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1330)
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1209)
 java.lang.ClassLoader.loadClassInternal(Unknown Source)
 com.crystaldecisions.reports.sdk.ReportClientDocument.open(Unknown Source)
 org.apache.jsp._1_jsp._jspService(_1_jsp.java:64)
 org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
my jsp is
<%@ page import="com.crystaldecisions.report.web.viewer.*" %>
<%@ page import="com.crystaldecisions.sdk.occa.report.data.*" %>
<%@ page import="com.crystaldecisions.reports.sdk.ReportClientDocument" %>
<%
 Object reportSource = session.getAttribute("reportSource");
 if (reportSource == null)
 String report = "report.rpt";
 ReportClientDocument reportClientDoc = new ReportClientDocument();
 reportClientDoc.open( "report.rpt", 0);
 reportSource = reportClientDoc.getReportSource();
 session.setAttribute("reportSource", reportSource);
 CrystalReportViewer viewer = new CrystalReportViewer();
 viewer.setReportSource(reportSource);
 viewer.setEnableLogonPrompt(false);
 viewer.setOwnPage(true);
 viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), null);
%>
and in my WEB-INF/lib i included jar files namely
Concurrent.jar,CrystalCharting.jar,CrystalCommon.jar,CrystalContentModels.jar,CrystalExporters.jar,CrystalExportingBase.jar,CrystalFormulas.jar,CrystalQueryEngine.jar,CrystalReportEngine.jar,CrystalReportingCommon.jar,icu4j.jar,jrcerom.jar,keycodeDecoder.jar,log4j.jar,MetafileRenderer.jar,rasapp.jar,rascore.jar,rpoifs.jar,serialization.jar,URIUtil.jar,xml-apis.jar,xbean.jar,xercesImpl.jar,webreporting.jar,webreporting-jsf.jar
please help me

You can't inherit from a final class.
So - are you trying to inherit from a final class?
Sincerely,
Ted Ueda

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Stack dump 
java.sql.SQLException: 
java.lang.VerifyError: 
(class: com/mercury/jdbc/sqlserver/tds/TDSConnection, 
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signature: (Ljava/lang/String;Ljava/lang/String; 
Ljava/lang/String 
Lcom/mercury/util/UtilSecurityContext 
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>
InitSAConnection failed. 
Reason: AutomationException: Failed to Login 
[ERR_SEP]Messages:Failed to Login; 
Failed to check authentication of user 'alex_qc'; 
Cannot build directory item for key 
'[maze1sql_db@jdbc:mercury:sqlserver://fork:1433(td)]' 
in SA Global Struct Dir; 
Failed to fill table struct for table null in database 
maze1sql_db@jdbc:mercury:sqlserver://fork:1433(td); 
java.lang.VerifyError: 
(class: com/mercury/jdbc/sqlserver/tds/TDSConnection, 
method: createSecurityContext 
signature: (Ljava/lang/String; 
Ljava/lang/String; 
Ljava/lang/String) 
Lcom/mercury/util/UtilSecurityContext) 
Wrong return type in function; 
 
Stack Trace: 
 
java.sql.SQLException: 
java.lang.VerifyError: 
(class: com/mercury/jdbc/sqlserver/tds/TDSConnection, 
method: createSecurityContext 
signature: (Ljava/lang/String;Ljava/lang/String; 
Ljava/lang/String) 
Lcom/mercury/util/UtilSecurityContext) 
Wrong return type in function 
 
at com.mercury.jdbc.base.BaseConnectionStartup.run(Unknown Source) 
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(CTdDriverManager.java:81) 
at com.mercury.optane.core.db.CConnectionPool.newConnection 
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at com.mercury.optane.core.db.CConnectionPool.getConnection 
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at com.mercury.optane.core.db.CDatabaseFieldsInfo.obtainInfo 
(CDatabaseFieldsInfo.java:135) 
wrapped in com.mercury.optane.core.CTdException: 
 
Failed to fill table struct for table null in database 
maze1sql_db@jdbc:mercury:sqlserver://fork:1433(td) 
at com.mercury.optane.core.db.CDatabaseFieldsInfo.obtainInfo 
(CDatabaseFieldsInfo.java:157) 
at com.mercury.optane.core.db.CDatabaseFieldsInfo.<init> 
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at com.mercury.optane.core.db.CAbsTablesStructDirectory.createDirectoryItem 
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at com.mercury.optane.core.directory.CAbsDirectory.getDirectoryItem 
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wrapped in com.mercury.optane.core.CTdException: 
Cannot build directory item for key 
'[maze1sql_db@jdbc:mercury:sqlserver://fork:1433(td)]' 
in SA Global Struct Dirat 
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at com.mercury.optane.core.db.CAbsTablesStructDirectory.getDatabaseFieldsInfo 
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at com.mercury.td.saserver.sautil.CSaDbSchemaProperties.getDatabaseFieldsInfo 
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at com.mercury.td.saserver.api.logics.CTdUserLogic.authenticateUserAgainstTdDB 
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wrapped in com.mercury.optane.core.CTdException: 
Failed to check authentication of user 'alex_qc' 
 
at com.mercury.td.saserver.api.logics.CTdUserLogic.authenticateUserAgainstTdDB 
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at com.mercury.td.saserver.api.logics.CTdUserLogic.checkUserPassword 
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at com.mercury.td.saserver.api.logics.CSessionLogic.login 
(CSessionLogic.java:229) 
at com.mercury.td.saserver.web.CTdSiteAdminServlet.redirectLogin 
(CTdSiteAdminServlet.java:275) 
at sun.reflect.NativeMethodAccessorImpl.invoke0 
(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:324) 
at com.mercury.optane.core.web.CAbsServlet.executeFunction 
(CAbsServlet.java:459) 
 
wrapped in com.mercury.optane.core.CTdException: 
Failed to Loginat com.mercury.optane.core.web.CAbsServlet.executeFunction 
(CAbsServlet.java:465) 
at com.mercury.optane.core.web.CAbsServlet.processRequest 
(CAbsServlet.java:440) 
at com.mercury.optane.core.web.CAbsServlet.doPost 
(CAbsServlet.java:323) 
at javax.servlet.http.HttpServlet.service 
(HttpServlet.java:760) 
at javax.servlet.http.HttpServlet.service 
(HttpServlet.java:853) 
at weblogic.servlet.internal.ServletStubImpl:ServletInvocationAction.run 
(ServletStubImpl.java:1072) 
at weblogic.servlet.internal.ServletStubImpl.invokeServlet 
(ServletStubImpl.java:465) 
at weblogic.servlet.internal.ServletStubImpl.invokeServlet 
(ServletStubImpl.java:348) 
at weblogic.servlet.internal.WebAppServletContext:ServletInvocationAction.run 
(WebAppServletContext.java:6981) 
at weblogic.security.acl.internal.AuthenticatedSubject.doAs 
(AuthenticatedSubject.java:321) 
at weblogic.security.service.SecurityManager.runAs 
(SecurityManager.java:121) 
at weblogic.servlet.internal.WebAppServletContext.invokeServlet 
(WebAppServletContext.java:3892) 
at weblogic.servlet.internal.ServletRequestImpl.execute 
(ServletRequestImpl.java:2766) 
at weblogic.kernel.ExecuteThread.execute 
(ExecuteThread.java:224) 
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)

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When I try to call the deployed application in my browser I get this:
500 Internal Server Error
java.lang.VerifyError: class org.omg.PortableServer.AdapterActivatorPOA overrides final method . at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1004) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].naming.ContextClassLoader.findClass(ContextClassLoader.java:267) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].naming.ContextClassLoader.defineClass(ContextClassLoader.java:1004) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].naming.ContextClassLoader.findClass(ContextClassLoader.java:267) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at com.inprise.vbroker.orb.ORB.adapterManager(ORB.java:1101) at com.inprise.vbroker.ds.DSUser.<init>(DSUser.java:282) at com.inprise.vbroker.ds.Init.init(Init.java:20) at com.inprise.vbroker.orb.ORB.installServices(ORB.java:922) at com.inprise.vbroker.orb.ORB.initialize(ORB.java:831) at com.inprise.vbroker.orb.ORB.set_parameters(ORB.java:950) at org.omg.CORBA.ORB.init(ORB.java:329) at oracle.dss.appmodule.common.ORBUtils.getORBForApplication(ORBUtils.java:109) at oracle.dss.connection.server.ConnectionImpl.getORB(ConnectionImpl.java:1056) at oracle.dss.connection.server.ConnectionImpl.connect(ConnectionImpl.java:263) at oracle.dss.connection.client.Connection.connect(Connection.java:399) at oracle.dss.connection.client.Connection.connect(Connection.java:321) at oracle.dss.metadataManager.client.MetadataManager.setConnectionObjects(MetadataManager.java:3933) at oracle.dss.metadataManager.client.MetadataManager.attach(MetadataManager.java:827) at oracle.dss.metadataManager.client.MetadataManager.attach(MetadataManager.java:767) at oracle.dss.datautil.client.XMLManagerFactory.createQueryManager(XMLManagerFactory.java:187) at oracle.dss.datautil.client.ManagerFactoryImpl.lookupQueryManager(ManagerFactoryImpl.java:176) at oracle.dss.datautil.client.ManagerFactoryImpl.lookupMetadataManager(ManagerFactoryImpl.java:239) at oracle.dss.datautil.client.ManagerFactoryImpl.lookupManager(ManagerFactoryImpl.java:128) at oracle.dss.addins.jspTags.BIThinSession.getMetadataManager(BIThinSession.java:203) at oracle.dss.addins.jspTags.BIThinSession.getQueryManager(BIThinSession.java:226) at oracle.dss.addins.jspTags.BIThinSession.loadView(BIThinSession.java:126) at oracle.dss.addins.jspTags.PresentationTag.createThinObject(PresentationTag.java:142) at oracle.dss.addins.jspTags.BIBaseTag.getThinObject(BIBaseTag.java:76) at oracle.dss.addins.jspTags.PresentationTag.doStartTag(PresentationTag.java:225) at simpleJSP.jspService(_simpleJSP.java:72) [SRC:/simpleJSP.jsp:6] at com.orionserver[Oracle9iAS (9.0.3.0.0) Containers for J2EE].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:304) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:423) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:346) at javax.servlet.http.HttpServlet.service(HttpServlet.java:336) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:691) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:276) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:737) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:247) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].util.ThreadPoolThread.run(ThreadPoolThread.java:64)
Nothing (except the 500 error itself) is logged to any of the log-files in j2ee/home/log.
I am able to run all of the samples that comes with oc4j.
oc4j is invoked using:
java -Xmx128m -Dorg.omg.CORBA.ORBClass=com.inprise.vbroker.orb.ORB -Dorg.omg.COR
BA.ORBSingletonClass=com.inprise.vbroker.orb.ORB -jar oc4j.jar &
as specified in tutorial instructions.
Can anyone point me in the right direction to solve this?
Thanks,
Jens

The guys over in the J2EE forum came with this answer. Please note that they refer to Jdeveloper 9.0.3.
I don't really know how to interpret that, as the RC2 Jdeveloper is 9.0.2.7.86, but anyway, her goes:
<snip>
It seems like you are using JDeveloper 903, is that right?
Select Help->About from the Jdeveloper menus
If you are using Jdeveloper 903, read on:
This is a known issue. 903 Jdeveloper is bundled with J2EE ORB (IIOP.jar) from Sun to allow EJBs communicate using RMI/IIOP. In addition, we also have Visibroker ORB (VBJORB.jar) in the classpath. Sun has implemented CORBA 2.3.1 specification and Visibroker I believe has implemented CORBA 2.3.0 spec. The signature of one of the methods in class org.omg.PortableServer.AdapterActivatorPOA has changed between the two releases and hence the problem.
We are trying to move away from Visibroker ORB and have requested OLAPI team to remove all dependencies on Visi ORB. Although there is no known dependencies on it, there seems to be dependencies because the idl compiler (from Visibroker) is inserting referces to Visibroker code.
To work around :
Remove/rename iiop.jar file in ORACLE_HOME/J2EE/HOME directory. Be warned that EJB's wont work if it is renamed or removed.
This should only be considered as a temporary work around until we decide our next steps.
</snip>
Use at own risk..
The error reported in this thread disappeared with this workaround, but unfortunately I got another one:
500 Internal Server Error
javax.servlet.jsp.JspException: BIB-10310 An unknown exception occurred.BIB-10101 Handler failed to handle UserObject.java.lang.NullPointerException at oracle.dss.addins.jspTags.PresentationTag.doStartTag(PresentationTag.java:254) at simpleJSP.jspService(_simpleJSP.java:72) [SRC:/simpleJSP.jsp:6] at com.orionserver[Oracle9iAS (9.0.3.0.0) Containers for J2EE].http.OrionHttpJspPage.service(OrionHttpJspPage.java:56) at oracle.jsp.runtimev2.JspPageTable.compileAndServe(JspPageTable.java:510) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:257) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:423) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:346) at javax.servlet.http.HttpServlet.service(HttpServlet.java:336) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:691) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:276) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:737) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].server.http.HttpRequestHandler.run(HttpRequestHandler.java:247) at com.evermind[Oracle9iAS (9.0.3.0.0) Containers for J2EE].util.ThreadPoolThread.run(ThreadPoolThread.java:64)
Tips anyone..?
Jens

Upgrade to 10.1.2.3 now getting java.lang.VerifyError using rwrun.sh

We recently upgraded our Application Server/Forms and Reports to Oracle 10.1.2.3. We have one application that uses a python script and calls rwrun (or rwrun.sh) from Generic Apache (not Oracle's Apache).
We are now seeing the following error from the rwrun.sh command:
ERR REP-0069: Internal error
java.lang.VerifyError: class org.omg.PortableServer.AdapterActivatorPOA overrides final method .
This use to work with Oracle 9.0.4 I opened a Service Request with Oracle since I was also having problems running this from the command line. At that point I had to open up the $OH/diagnostics/config/registration directory to world write access.
Now that I got past that, the command line rwrun works, but the call from the python script using the generic apache doesn't.
Oracle wouldn't help since this is custom code.
Any suggestion.
Thanks,
Shirley

We recently upgraded our Application Server/Forms and Reports to Oracle 10.1.2.3. We have one application that uses a python script and calls rwrun (or rwrun.sh) from Generic Apache (not Oracle's Apache).
We are now seeing the following error from the rwrun.sh command:
ERR REP-0069: Internal error
java.lang.VerifyError: class org.omg.PortableServer.AdapterActivatorPOA overrides final method .
This use to work with Oracle 9.0.4 I opened a Service Request with Oracle since I was also having problems running this from the command line. At that point I had to open up the $OH/diagnostics/config/registration directory to world write access.
Now that I got past that, the command line rwrun works, but the call from the python script using the generic apache doesn't.
Oracle wouldn't help since this is custom code.
Any suggestion.
Thanks,
Shirley

Java.lang.VerifyError - Incompatible object argument for function call

Hi all,
I'm developing a JSP application (powered by Tomcat 4.0.1 in JDK 1.3, in Eclipse 3.3). Among other stuff I have 3 classes interacting with an Oracle database, covering 3 use cases - renaming, adding and deleting an database object. The renaming class simply updates the database with a String variable it receives from the request object, whereas the other two classes perform some calculations with the request data and update the database accordingly.
When the adding or deleting classes are executed, by performing the appropriate actions through the web application, Tomcat throws the following:
java.lang.VerifyError: (class: action/GliederungNewAction, method: insertNewNode signature: (Loracle/jdbc/driver/OracleConnection;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V) Incompatible object argument for function call
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:120)
 at action.ActionMapping.perform(ActionMapping.java:53)
 at ControllerServlet.doResponse(ControllerServlet.java:92)
 at ControllerServlet.doPost(ControllerServlet.java:50)
 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)
...The renaming works fine though. I have checked mailing lists and forums as well as contacted the company's java support but everything I have tried out so far, from exchanging the xerces.jar files found in JDOM and Tomcat to rebuidling the project didn't help.
I just can't explain to myself why this error occurs and I don't see how some additional Java code in the other 2 classes could cause it?
I realize that the Tomcat and JDK versions I'm using are totally out of date, but that's company's current standard and I can't really change that.
Here's the source code. I moved parts of the business logic from Java to Oracle recently but I left the SQL statements that the Oracle stored procedures are executing if it helps someone.
package action;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.StringTokenizer;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import oracle.jdbc.driver.OracleConnection;
* This class enables the creation and insertion of a new catalogue node. A new node
* is always inserted as the last child of the selected parent node.
public class GliederungNewAction implements Action {
 public String perform(ActionMapping mapping, HttpServletRequest request,
 HttpServletResponse response) {
 // fetch the necessary parameters from the JSP site
 // the parent attribute is the selected attribute!
 String parent_attribute = request.getParameter("attr");
 String catalogue = request.getParameter("catalogue");
 int parent_sequenceNr = Integer.parseInt(request.getParameter("sort_sequence"));
 // connect to database
 HttpSession session = request.getSession();
 db.SessionConnection sessConn = (db.SessionConnection) session.getAttribute("connection");
 if (sessConn != null) {
 try {
 sessConn.setAutoCommit(false);
 OracleConnection connection = (OracleConnection)sessConn.getConnection();
 int lastPosition = getLastNodePosition( getLastChildAttribute(connection, catalogue, parent_attribute) );
 String newNodeAttribute = createNewNodeAttribute(parent_attribute, lastPosition);
 // calculate the sequence number
 int precedingSequenceNumber = getPrecedingSequenceNumber(connection, catalogue, parent_attribute);
 if ( precedingSequenceNumber == -1 ) {
 precedingSequenceNumber = parent_sequenceNr;
 int sortSequence = precedingSequenceNumber + 1;
 setSequenceNumbers(connection, catalogue, sortSequence);
 // insert the new node into DB
 insertNewNode(connection, catalogue, newNodeAttribute, parent_attribute, "Neuer Punkt", sortSequence);
 connection.commit();
 } catch(SQLException ex) {
 ex.printStackTrace();
 return mapping.getForward();
 * Creates, fills and executes a prepared statement to insert a new entry into the specified table, representing
 * a new node in the catalogue.
 private void insertNewNode(OracleConnection connection, String catalogue, String attribute, String parent_attribute, String description, int sortSequence) {
 try {
 String callAddNode = "{ call fasi_lob.pack_gliederung.addNode(:1, :2, :3, :4, :5) }";
 CallableStatement cst;
 cst = connection.prepareCall(callAddNode);
 cst.setString(1, catalogue);
 cst.setString(2, attribute);
 cst.setString(3, parent_attribute);
 cst.setString(4, description);
 cst.setInt(5, sortSequence);
 cst.execute();
 cst.close();
 } catch (SQLException e1) {
 // TODO Auto-generated catch block
 e1.printStackTrace();
// String insertNewNode = "INSERT INTO vstd_media_cat_attributes " +
// "(catalogue, attribute, parent_attr, description, sort_sequence) VALUES(:1, :2, :3, :4, :5)";
// PreparedStatement insertStmt;
// try {
// insertStmt = connection.prepareStatement(insertNewNode);
// insertStmt.setString(1, catalogue);
// insertStmt.setString(2, attribute);
// insertStmt.setString(3, parent_attribute);
// insertStmt.setString(4, description);
// insertStmt.setInt(5, sortSequence);
// insertStmt.execute();
// insertStmt.close();
// } catch (SQLException e) {
// e.printStackTrace();
 * This method returns the attribute value of the last child of the parent under which
 * we want to insert a new node. The result set is sorted in descending order and only the
 * first result (that is, the last child under this parent) is fetched.
 * If the parent node has no children, "parent_attr.0" is returned.
 * @param connection
 * @param catalogue
 * @param parent_attribute
 * @return attribute of the last child under this parent, or "parent_attr.0" if parent has no children
 private String getLastChildAttribute(OracleConnection connection, String catalogue, String parent_attribute) {
 String queryLastChild = "SELECT attribute FROM vstd_media_cat_attributes " +
 "WHERE catalogue=:1 AND parent_attr=:2 ORDER BY sort_sequence DESC";
 String lastChildAttribute;
 PreparedStatement ps;
 try {
 ps = connection.prepareStatement(queryLastChild);
 ps.setString(1, catalogue);
 ps.setString(2, parent_attribute);
 ResultSet rs = ps.executeQuery();
 /* If a result is returned, the selected parent already has children.
 * If not set the lastChildAttribute to parent_attr.0
 if (rs.next()) {
 lastChildAttribute = rs.getString("attribute");
 } else {
 lastChildAttribute = parent_attribute.concat(".0");
 rs.close();
 return lastChildAttribute;
 } catch (SQLException e) {
 e.printStackTrace();
 return null;
 * This helper method determines the position of the last node in the attribute.
 * i.e for 3.5.2 it returns 2, for 2.1 it returns 1 etc.
 * @param attribute
 * @return position of last node in this attribute
 private int getLastNodePosition(String attribute) {
 StringTokenizer tokenizer = new StringTokenizer(attribute, ".");
 String lastNodePosition = "0";
 while( tokenizer.hasMoreTokens() ) {
 lastNodePosition = tokenizer.nextToken();
 return Integer.parseInt(lastNodePosition);
 * This method calculates the attribute of a node being inserted
 * by incrementing the last child position by 1 and attaching the
 * incremented position to the parent.
 * @param parent_attr
 * @param lastPosition
 * @return attribute of the new node
 private String createNewNodeAttribute(String parent_attr, int lastPosition) {
 String newPosition = new Integer(lastPosition + 1).toString();
 return parent_attr.concat("." + newPosition);
 * This method checks if the required sequence number for a new node is already in use and
 * handles the sequence numbers accordingly.
 * If the sequence number for a new node is NOT IN USE, the method doesn't do anything.
 * If the sequence number for a new node is IN USE, the method searches for the next free
 * sequence number by incrementing the number by one and repeating the query until no result
 * is found. Then all the sequence numbers between the required number (including, >= relation)
 * and the nearest found free number (not including, < relation) are incremented by 1, as to
 * make space for the new node.
 * @param connection
 * @param catalogue
 * @param newNodeSequenceNumber required sequence number for the new node
 private void setSequenceNumbers(OracleConnection connection, String catalogue, int newNodeSequenceNumber) {
 // 1. check if the new sequence number exists - if no do nothing
 // if yes - increment by one and see if exists
 // repeat until free sequence number exists
 // when found increment all sequence numbers freeSeqNr > seqNr >= newSeqNr
 String query = "SELECT sort_sequence FROM vstd_media_cat_attributes " +
 "WHERE catalogue=:1 AND sort_sequence=:2";
 PreparedStatement ps;
 try {
 ps = connection.prepareStatement(query);
 ps.setString(1, catalogue);
 ps.setInt(2, newNodeSequenceNumber);
 ResultSet rs = ps.executeQuery();
 // if no result, the required sequence number is free - nothing to do
 if( rs.next() ) {
 int freeSequenceNumber = newNodeSequenceNumber;
 do {
 ps.setString(1, catalogue);
 ps.setInt(2, freeSequenceNumber++);
 rs = ps.executeQuery();
 } while( rs.next() );
 // increment sequence numbers - call stored procedure
 String callUpdateSeqeunceNrs = "{ call fasi_lob.pack_gliederung.updateSeqNumbers(:1, :2, :3) }";
 CallableStatement cst = connection.prepareCall(callUpdateSeqeunceNrs);
 cst.setString(1, catalogue);
 cst.setInt(2, newNodeSequenceNumber);
 cst.setInt(3, freeSequenceNumber);
 cst.execute();
 cst.close();
// String query2 = "UPDATE vstd_media_cat_attributes " +
// "SET sort_sequence = (sort_sequence + 1 ) " +
// "WHERE catalogue=:1 sort_sequnce >=:2 AND sort_sequence <:3";
// PreparedStatement ps2;
// ps2 = connection.prepareStatement(query2);
// ps2.setString(1, catalogue);
// ps2.setInt(2, newNodeSequenceNumber);
// ps2.setInt(3, freeSequenceNumber);
// ps.executeUpdate();
// ps.close();
 } // end of if block
 rs.close();
 } catch (SQLException e) {
 e.printStackTrace();
 * This method finds the last sequence number preceding the sequence number of a node
 * that is going to be inserted. The preceding sequence number is required to calculate
 * the sequence number of the new node.
 * We perform a hierarchical query starting from the parent node: if a result is returned,
 * we assign the parent's farthest descendant's node sequence number; if no result
 * is returned, we assign the parent's sequence number.
 * @param connection
 * @param catalogue
 * @param parent_attr parent attribute of the new node
 * @return
 private int getPrecedingSequenceNumber(OracleConnection connection, String catalogue, String parent_attr) {
 int sequenceNumber = 0;
 String query = "SELECT sort_sequence FROM vstd_media_cat_attributes " +
 "WHERE catalogue=:1 " +
 "CONNECT BY PRIOR attribute = parent_attr START WITH parent_attr=:2 " +
 "ORDER BY sort_sequence DESC";
 try {
 PreparedStatement ps = connection.prepareStatement(query);
 ps.setString(1, catalogue);
 ps.setString(2, parent_attr);
 ResultSet rs = ps.executeQuery();
 if ( rs.next() ) {
 sequenceNumber = rs.getInt("sort_sequence");
 } else {
 // TODO: ggf fetch from request!
 sequenceNumber = -1;
 rs.close();
 ps.close();
 } catch (SQLException e) {
 e.printStackTrace();
 return sequenceNumber;
}

After further googling I figured out what was causing the problem: in eclipse I was referring to external libraries located in eclipse/plugins directory, whereas Tomcat was referring to the same libraries (possibly older versions) in it's common/lib directory.

Java.lang.IllegalArgumentException: Cannot invoke beans

in 1 jsp page
<logic:iterate id="msgg" name="messages">
<tr>
<td>${msgg.messageNumber}</td>
<td>${msgg.from[0]}</td>
** <td><html:link action="msgbody?message=${msgg.message}">${msgg.subject}</html:link> </td>
<td>${msgg.sentDate}</td>
</tr>
</logic:iterate>
${msgg.message} which will return javax.mail.Message object
By clicking in the link(above shown as **) it will go to msgbody action and should set
message property of bean with javax.mail.Message object
for msg body action my bean is
package beans;
import javax.mail.Message;
import org.apache.struts.action.ActionForm;
public class MsgBn extends ActionForm {
private Message message;
public Message getMessage() {
return message;
public void setMessage(Message message) {
this.message = message;
i am getting following exception plz suggest me solutions
java.lang.IllegalArgumentException: Cannot invoke beans.MsgBn.setMessage - argument type mismatch
org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:1778)
org.apache.commons.beanutils.PropertyUtilsBean.setSimpleProperty(PropertyUtilsBean.java:1759)
org.apache.commons.beanutils.PropertyUtilsBean.setNestedProperty(PropertyUtilsBean.java:1648)
org.apache.commons.beanutils.PropertyUtilsBean.setProperty(PropertyUtilsBean.java:1677)
org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1022)
org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:811)
org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:298)
org.apache.struts.util.RequestUtils.populate(RequestUtils.java:493)

Of course it's a String. It's being passed as a request parameter. Request parameters are always Strings.
It looks like something needs to be held in the session maybe?

Java.lang.VerifyError when using ant 1.6.2

In short, I get the VerifyError when deploying my .ear in Weblogic 8.1 SP2. I have nailed down the issue to this:
I compile all my code using Ant 1.6.2. If I package the code up using ant 1.6.2 I get the VerifyError. If I pacakge the code up using ant 1.4, all is well. Note that when I deploy the 1.6.2 packaged ear file on Windows, all is well also.
During the ant package target I assembly the war and ear using the core war and ear tasks.
We are using precompiled JSPs in the war file. It seems that WL8.1 wants to recompile the JSP file. I am not sure why - the ant 1.4 packaged ear does not want to recompile the same JSP.
The detailed error is:
Servlet class jsp_servlet._portal.__capitalmarketsoverview for servlet /portal/CapitalMarketsOverview.jsp could not be verified.
java.lang.VerifyError: (class: jsp_servlet/_portal/__capitalmarketsoverview, method: _jspService signature: (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Incompatible object argument for function call.>
Any help is appreciated,
Harry Duin

Hello,
I could not find an easy way to get the wls version of ant to start using the tasks you mention from ant 1.6.2.
I tried defining the tasks using taskdef and also adding them to wls ant.jar and updating the deafult.properties file but the ant complained about unexpected elements in the build.xml file where I added the new tags (e.g import)
If your really up against it you can try adding wls tasks to ant 1.6.2, they are listed here:
http://e-docs.bea.com/wls/docs81/toolstable/ToolsTable.html#1009580
Although I could not located exactly which jar they are in. Good luck.
Cheers
Hussein Badakhchani
www.orbism.com

Java.lang.VerifyError in code generated by Prototype 1.2

I managed to get a java.lang.VerifyError from a class generated by prototype 1.2. A short test case follows: (It looks like the compile knows it can call .intern() on the result of the
?:, but the verifier thinks the bytecode does something wrong..)
import java.util.Stack;
public class Case
public static void main(String[] argv)
Stack<String> bar = new Stack<String>();
String foo;
// Compiles, but causes verify error
foo=(bar.empty()?"":bar.peek()).intern();
// The following two work fine
foo = (bar.empty()?"":bar.peek().intern());
foo = (bar.empty()?"":(String)bar.peek()).intern();

Hi,
I've noticed the same behaviour (java.lang.VerifyError) with code that uses extra parentheses on the return
statement, i.e.:
return(object);
instead of:
return object;
Interestingly, parentheses also seem to affect your above example. If I change it as follows:
public class TestGenericsBug
public static void main(String[] argv)
Stack<String> bar = new Stack<String>();
String foo;
// Compiles, works fine
String tmp = bar.empty()?"":bar.peek() ;
foo = tmp.intern();
// The following two work fine
foo = (bar.empty()?"":bar.peek().intern());
foo = (bar.empty()?"":(String)bar.peek()).intern();
The code compiles and runs. If, however, extra parenteses are added:
package test;
import java.util.Stack;
public class TestGenericsBug
public static void main(String[] argv)
Stack<String> bar = new Stack<String>();
String foo;
// Compiles, but causes verify error. Extra Parentheses ?
String tmp = ( bar.empty()?"":bar.peek() );
foo = tmp.intern();
// The following two work fine
foo = (bar.empty()?"":bar.peek().intern());
foo = (bar.empty()?"":(String)bar.peek()).intern();
The bug is back!

Java.lang.VerifyError with JDK1.3.1_02

Hi all,
I was using a third part ".jar" in my application and I started getting a java.lang.verifyError. I was wondering what are the various reasons that can cause this error to show up. I have jotted down the possibilities I can think of, but due to lack of documentation from the Java team at sun, I am not too sure. If anybody can cross-verify these and can provide feedback, it would be great.
Reasons for java.lang.VerifyError :
1) You compiled your code which uses ABC.java in package1 and while running it you used package2 instead of package1 which also had ABC.java.
2) You call a method in your code which accepts say a String[] array, but at run time what you pass to the method is merely a String - Although this kind of code should not compile at all, but again what class you use at compile time and runtime can be different and can cause this to happen.
Any other additions / Corrections are welcome.
Thanks.
Vivek.

Hi, Do you get any message / stack trace to find out
where it happens .I have actually fixed the problem now, basically the code was compiled with one xerces.jar and at run time a different jar with the same class files was getting included. What I wanted to find out is that are there other reasons for getting this VerifyError - coz the Java API does not mention anything about what conditions can cause this to occur.
Thanks.
Vivek.

Java.lang.ClassCastException: Cannot narrow remote object weblogic.rmi.inte

Hi,
I am trying to deploy ejb3.0 on weblogic 10 server. I am able to find the JNDI name of the stateless session bean correctly, but getting an exception while narrowing it down. My ejb3.0 client is a standalone java client. I am trying to access the stateless session ejb3.0 bean.Please help me. i have been trying it for many days.
thanks in advance,
Sanjeev
[sanpraka@localhost certEjb]$ java -cp ./:/usr/weblogic/bea/wlserver_10.0/server/lib/weblogic.jar:/usr/weblogic/bea/wlserver_10.0/server/lib/wlclient.jar com.titan.clients.Client
Object is weblogic.rmi.internal.BasicRemoteRef - hostID: '5337880647112897730S:127.0.0.1:[7001,7001,-1,-1,-1,-1,-1]:wl_server:examplesServer', oid: '302', channel: 'null'
java.lang.ClassCastException: Cannot narrow remote object weblogic.rmi.internal.BasicRemoteRef - hostID: '5337880647112897730S:127.0.0.1:[7001,7001,-1,-1,-1,-1,-1]:wl_server:examplesServer', oid: '302', channel: 'null' to com.titan.travelagent.TravelAgentRemote
at weblogic.corba.server.naming.ReferenceHelperImpl.narrow(ReferenceHelperImpl.java:206)
at weblogic.rmi.extensions.PortableRemoteObject.narrow(PortableRemoteObject.java:88)
at weblogic.iiop.PortableRemoteObjectDelegateImpl.narrow(PortableRemoteObjectDelegateImpl.java:32)
at javax.rmi.PortableRemoteObject.narrow(Unknown Source)
at com.titan.clients.Client.main(Client.java:24)
[sanpraka@localhost certEjb]$

We have a similar problem. We have a web application (on server A) that invokes an EJB on a remote server (server B). This works fine, until we deploy another web application to server A at which point the existing web application starts to throw java.lang.ClassCastException when narrowing the remote EJB interface. The exception starts to be thrown at the moment the latter web application is deployed - start is not required.
The latter web application contains (actually in APP-INF/lib) the old version of the EJB remote interface, that somehow gets to be loaded into the classpath of the existing web application. The solution is to delete the old version of the EJB remote interface from APP-INF/lib of the latter web application (we didn't need it anyway), but it would be interesting to know in which circumstances classes can get mixed between enterprise applications.
I failed to reproduce the error in simple scenario, so this does not happen always.

Java.lang.VerifyError: Cannot inherit from final class

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