Problems with ClassCastException

I have a program that has an array of Strings instantiated as follws; String decisions[][] = new String[50][2]; and I need to sort the array. I was trying to use Arrays.sort(decisions); but it throws a ClassCastException and the program hangs. Is there anyway to use the built in sort function of the Arrays class for an array of Strings without gettign this error?

Please refer to javadoc on java.util.Arrays.sort(Object[] a). It says:
Sorts the specified array of objects into ascending order, according to the natural ordering of its elements. All elements in the array must implement the Comparable interface. Furthermore, all elements in the array must be mutually comparable (that is, e1.compareTo(e2) must not throw a ClassCastException for any elements e1 and e2 in the array).When you sort String[][] each element becomes String[] -- which does not implement Comparable interface and so sort() methods throws ClassCastException as specified. I am not sure what do you mean when you say "it hangs" -- does your java program hangs or just shows exception stack trace and exits?

Similar Messages

Problem with ClassCastException in web application

Hello,
 I'm trying to deploy a web application in WLS 5.1 and I'm getting the
 "dreaded" ClassCastException every time when JSP tries to read a bean
 from the request or session. Under my architecture (actually it's just
 the regular "model 2" ) bean is populated by a servlet, set on the
 request and then retrieved by JSP (servlet forwards to JSP). Everything
 work fine when I register servlets in weblogic.properties, but
 ClassCastException is thrown on any attempt to read from the request if
 the same JSPs and servlets are deployed as web application.
 Has anybody come across the same problem?
 Thanks in advance for help.
 Alexander


Hello,
 This is all well and good as a temporary bug, but it's totally unrealistic for
 the future. Two points:
 * The ClassLoader doesn't need to be discarded, it just needs to be cleared.
 * Other servlet engines seem to be able to handle this.
 Hope it's on its way to resolution!
 TDoan wrote:
 > Alexander:
 >
 > I had some problem with ClassCastException, and recently I found out what it
 > was that causing it. I'm sure if this is the same problem you are having,
 > but please read the following paragraph.
 >
 > I cutted this from http://www.weblogic.com/docs51/classdocs/API_servlet.html
 > ClassCastException and HTTP Sessions
 >
 > You might encounter a ClassCastException while developing servlets that use
 > HTTP sessions. This could happen as a result of the following set of events:
 >
 > a.. You store a reference to a custom class, myFoo, in an HTTP session.
 >
 > b.. While in mid-session, you change your servlet (or JSP or JHTML),
 > causing it to be reloaded. In fact, it is necessary for it to be reloaded by
 > a completely new class loader, and the old class loader that had previously
 > loaded it must be discarded.
 >
 > c.. Because your custom class myFoo is also located under the servlet
 > classpath, it too is reloaded by the new class loader.
 >
 > d.. Now, when you retrieve myFoo from the HTTP session, you cast it to the
 > expected type, but you recieve a ClassCastException. The exception is thrown
 > even if class myFoo has not changed. Because it has been loaded by a
 > different class loader, it is regarded by the JVM as incompatible.
 > Note: If you are using session persistence, the class contents must be
 > serialized, and you will not encounter this exception.
 >
 > Here are some suggested work-arounds to this problem:
 >
 > a.. Do not place your class myFoo in the servlet classpath. Instead, place
 > it in the system classpath or the weblogic.class.path, which are accessible
 > by WebLogic Server. The class will not be reloaded when the servlet is
 > modified. This drawback to this solution is that you cannot prototype the
 > myFoo class, because you must restart the server in order to reload the
 > class after it is modified.
 >
 > b.. If you need to prototype the class, you can write a wrapper method
 > within it to store and retrieve its contents to and from the session. You do
 > not access the class directly from the session, but instead call it is
 > wrapper methods to store or populate it is contents from the session. As
 > long as you use standard Java class types to store the class contents, they
 > will not be reloaded when the servlet is reloaded. This approach has
 > performance drawbacks because your wrapper methods would need to set or get
 > multiple name=value pairs for each class's attributes.
 >
 > c.. Another work-around is to catch the ClassCastException, and replace
 > the old class that is stored in the session with a newly instantiated class,
 > or remove it from the session. Unfortunately, you lose the session data that
 > was previously stored in the class, so you must write your application to
 > handle this scenario. This is the easiest solution to the problem-remember
 > that you should not be storing critical information in an HTTP session, but
 > rather storing it in a database.
 > Note: The ClassCastException generally occurs while you are developing
 > your servlets, and should not be an issue in a stable production system. If
 > you are upgrading your system online, you might wish to warn your customer
 > base.
 >
 > Hope it helps,
 > Tin
 >
 > "Alexander Ananiev" <[email protected]> wrote in message
 > news:[email protected]...
 > > Hello,
 > >
 > > I'm trying to deploy a web application in WLS 5.1 and I'm getting the
 > > "dreaded" ClassCastException every time when JSP tries to read a bean
 > > from the request or session. Under my architecture (actually it's just
 > > the regular "model 2" ) bean is populated by a servlet, set on the
 > > request and then retrieved by JSP (servlet forwards to JSP). Everything
 > > work fine when I register servlets in weblogic.properties, but
 > > ClassCastException is thrown on any attempt to read from the request if
 > > the same JSPs and servlets are deployed as web application.
 > > Has anybody come across the same problem?
 > >
 > > Thanks in advance for help.
 > > Alexander
 > >

Problem with ClassCastException

I have a typical problem...I have a method which accepts Object as a parameter and I would like to convert that into an object of class (SoapRequestDS). Calling tostring on the argument correctly shows that the object is of type SoapRequestDS. But when I try to cast it to SoapRequestDS, it throws up ClassCastException.
The SoapRequestDS class is user defined class.
The Object is coming from a vxml page which uses Object tag to call the java application. The vxml project references the jar file.

I am posting the code and the output....
Code:
public void setRequest(Object arg_req) throws ClassCastException
     try
          System.out.println("Correct Method" + arg_req.getClass().getName());
          System.out.println("Correct Method" + arg_req.toString());
          Method[] methods=arg_req.getClass().getMethods();
          System.out.println(methods[0].getName());
          //SoapRequest=new SoapRequestDS();
          SoapRequest=new Object();
          SoapRequest= arg_req;
          System.out.println(SoapRequest.getClass().getName());
          if (arg_req instanceof SoapRequestDS) {
               System.out.println("Correct");
               //type new_name = (type) name;
          System.out.println("Not Correct");
          //SoapRequest=(SoapRequestDS)arg_req;
     catch(ClassCastException e)
          System.out.println("Class cast exception" + e);
Output
Correct MethodSoapRequestDS
Correct MethodSoapRequestDS@4a5435a2
getRequestDS
SoapRequestDS
Not Correct
SoapRequestDS

Problem with java.sql.Clob and oracle.sql.CLOB

Hi,
I am using oracle9i and SAP web application server. I am getClob method and storing that in java.sql.Clob and using the getClass().getName() I am getting the class name as oracle.sql.CLOB. But when I am trying to cast this to oracle.sql.CLOB i am getting ClassCastException. The code is given below
java.sql.Clob lOracleClob = lResultSet.getClob(lColIndex + 1);
lPrintWriter = new PrintWriter(new BufferedWriter (((oracle.sql.CLOB) lOracleClob).getCharacterOutputStream()));
lResourceStatus = true;
can anybody please tell me the what is the problem with this and solution.
thanks,
Ashok.

Hi Ashok
You can get a "ClassCastException" when the JVM doesn't have access to the specific class (in your case, "oracle.sql.CLOB").
Just check your classpath and see if you are referring to the correct jar files.
cheers
Sameer
PS: Please award points if you find the answer useful

Problem with RMI in ADB T75 receiver

Hi:
I have a problem with an xlet that uses the RMI (IXC) API in the ADB T75 development settop box.
I export an object (of type MyObject) implementing the Remote interface, and, later, I import it with no problem.
The problem appears after importing the object, when I try to cast the imported object to the type of the exported object (type MyObject) for using it (example on page 371 of the marvelous Morris book).
If I import the object in the same xlet where I export it (a little bit useless), the process works fine as the class of the imported object (remoteObject.getClass().getName()) is the same of the exported object.
But, when importing the object from another xlet, doing the cast fails (ClassCastException). This time, remoteObject.getClass().getName() returns the name "stub_MyObject_ca_ba" ( "ca" is the OrgID and "ba" is the AppID of the exporting xlet). That is, the middleware is returning to the importing xlet an object of the stub class.
The ClassCastException seems to be right, as the the superclass of the "stub_MyObject_ca_ba" is directly java.lang.Object. That is, the types of the exported object (MyObject) and the returned object (stub_MyObject_ca_ba) are not in the same hierarchy.
Has anyone one explanation or solution?
May be a bug of the ADB T75 settop box?
Thanks in advance for your comments
Liga0068

Problem solved. This was posted by Pretorius_594 on Feb 27, 2004.
Sorry for bothering.
The problem was due to that I was doing a cast to the original object (MyObject). That is:
remoteObject = lookup(...)
MyObject importedobject = (MyObject)remoteObject.
I saw such an example in the Morris and Smith-Chaigneau book, but, definetively, that code seems not to work (at least in the ADB receiver)
Th right solution is to extend the Remote interface (MyRemote) and to cast the importedobject to that type. That is:
public interface MyRemote extends Remote ...
remoteObject = lookup(...)
MyRemote importedobject = (MyRemote)remoteObject.
Liga0068

Problem with JNDI in WLS 5.1

Hi all,
i have a problem with JNDI in WLE 5.1.
i am accessing an LDAP on another machine running Netscape Directory Server.
The host URL is ldap://myhost:65535/o=marco, c=fi
i am always getting back the following exception:
javax.naming.NoInitialContextException: Cannot instantiate class: weblogic.jndi.
WLInitialContextFactory. Root exception is java.lang.ClassCastException: weblog
ic.jndi.WLInitialContextFactory
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
58)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:242
at javax.naming.InitialContext.init(InitialContext.java:218)
at javax.naming.InitialContext.<init>(InitialContext.java:194)
and my code is this:
Hashtable _environment = new Hashtable();
try {
environment.put(Context.INITIALCONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
environment.put(Context.PROVIDERURL, "ldap://myhost:65535");
if ((principal!=null) || (credentials!=null)) {
environment.put(Context.SECURITYAUTHENTICATION, "simple");
environment.put(Context.SECURITYPRINCIPAL, principal);
environment.put(Context.SECURITYCREDENTIALS, credentials);
context = new InitialContext(environment);
parser = context.getNameParser(initialCtxFactory);
} catch(Exception e) {
e.printStackTrace();
can anyone help me please??
thanx in advance
marco

Take out the "weblogic.jndi.WLInitialContextFactory" and add the respective factory NAME..
environment.put(Context.INITIALCONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
Cheers,
Naggi
Senthil Kumar S wrote:
http://weblogic.com/docs51/classdocs/API_jndi.html#delegate
Marco wrote:
Hi all,
i have a problem with JNDI in WLE 5.1.
i am accessing an LDAP on another machine running Netscape Directory Server.
The host URL is ldap://myhost:65535/o=marco, c=fi
i am always getting back the following exception:
javax.naming.NoInitialContextException: Cannot instantiate class: weblogic.jndi.
WLInitialContextFactory. Root exception is java.lang.ClassCastException: weblog
ic.jndi.WLInitialContextFactory
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
58)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:242
at javax.naming.InitialContext.init(InitialContext.java:218)
at javax.naming.InitialContext.<init>(InitialContext.java:194)
and my code is this:
Hashtable _environment = new Hashtable();
try {
environment.put(Context.INITIALCONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
environment.put(Context.PROVIDERURL, "ldap://myhost:65535");
if ((principal!=null) || (credentials!=null)) {
environment.put(Context.SECURITYAUTHENTICATION, "simple");
environment.put(Context.SECURITYPRINCIPAL, principal);
environment.put(Context.SECURITYCREDENTIALS, credentials);
context = new InitialContext(environment);
parser = context.getNameParser(initialCtxFactory);
} catch(Exception e) {
e.printStackTrace();
can anyone help me please??
thanx in advance
marco--
http://www.net4tech.com

Problem with Javamail in Red Hat

Good afternoon.
I have a problem with javamail in Red Hat.
When i send a email in windows with my application, works well. But in Red Hat no works.
Gives the following error:
Java.lang.ClassCastException .... gnu.mail.handler.TextPlain
Does anyone know that happens?

You have much to learn. This is the wrong forum for most of it.
You should be able to use the package manager in Linux to
uninstall the Gnu version. Then read this:
[http://java.sun.com/products/javamail/FAQ.html#install|http://java.sun.com/products/javamail/FAQ.html#install]

Problems with Java and Business Objects

Hello everybody, I'm new in BusinessObjects/Crystal Report. Now, I have some problems with Business Objects for Java (Business Objects XI Release 2 Developer). 1) I create a report in the report designer. This report has a parameterfield. Before I run this report within a jsp web application I want fill the parameterfield with some values from the database. I found the following code snippet for this problem in your forum. But it don't works right, because it occurs a simple input field instead of a combo box with my database values. Where is my mistake? I need the combo box! (In debug mode I saw that the parameterfield was filled with my data!)<%@page import="com.crystaldecisions.report.web.viewer.CrystalReportViewer,com.crystaldecisions.sdk.occa.report.application.ReportClientDocument, com.crystaldecisions.sdk.occa.report.application.OpenReportOptions, com.crystaldecisions.sdk.occa.report.lib.ReportSDKExceptionBase, java.io.IOException, java.sql.Connection, java.sql.DriverManager, java.sql.ResultSet, java.sql.SQLException, java.sql.Statement, java.util.Locale, com.crystaldecisions.sdk.occa.report.application.DataDefController, com.crystaldecisions.sdk.occa.report.data.FieldDisplayNameType, com.crystaldecisions.sdk.occa.report.data.ParameterField, com.crystaldecisions.sdk.occa.report.data.ParameterFieldDiscreteValue, com.crystaldecisions.sdk.occa.report.data.Values, com.crystaldecisions.sdk.occa.report.reportsource.IReportSource"%><% try { String reportName = "avoParameterfeld.rpt"; ReportClientDocument clientDoc = (ReportClientDocument) session.getAttribute(reportName); if (clientDoc == null) { // Report can be opened from the relative location specified in the CRConfig.xml, or the report location // tag can be removed to open the reports as Java resources or using an absolute path // (absolute path not recommended for Web applications). clientDoc = new ReportClientDocument(); clientDoc.setReportAppServer("inproc:jrc"); // Open report clientDoc.open(reportName, OpenReportOptions._openAsReadOnly); // Connection Info for fetching the resultSet String connectStr = "jdbc:oracle:thin:@it1srv19:1521:itoracle"; String driverName = "oracle.jdbc.driver.OracleDriver"; String userName = "user"; String password = "password"; // TODO: Ensure this query is valid in your database. An exception will be thrown otherwise. String query = "SELECT DISTINCT AVONR FROM MBDEADM.AVO ORDER BY AVONR"; ResultSet paramData = null; //we will now pass the resultset to the parameter to use as Default Values String parameterName = "AVONR2"; int colIndex = 1; //this is the column in the ResultSet to use as the values // Load JDBC driver for the database that will be queried Class.forName(driverName); Connection connection = DriverManager.getConnection(connectStr, userName, password); Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE , ResultSet.CONCUR_READ_ONLY); paramData = statement.executeQuery(query); DataDefController dataDefController = clientDoc.getDataDefController(); ParameterField origParamField = (ParameterField)dataDefController.getDataDefinition().getParameterFields().findField(parameterName, FieldDisplayNameType.fieldName, Locale.getDefault()); ParameterField newParamField = (ParameterField)origParamField.clone(true); Values newVals = (Values)newParamField.getDefaultValues().clone(true); newVals.clear(); paramData.first(); while(!paramData.isLast()){ ParameterFieldDiscreteValue value = new ParameterFieldDiscreteValue(); value.setValue(paramData.getObject(colIndex)); newVals.add(value); paramData.next(); } dataDefController.getParameterFieldController().modify(origParamField, newParamField); // Store the report document in session session.setAttribute(reportName, clientDoc); } // ****** BEGIN CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET **************** { // Create the CrystalReportViewer object CrystalReportViewer crystalReportPageViewer = new CrystalReportViewer(); // set the reportsource property of the viewer IReportSource reportSource = clientDoc.getReportSource(); crystalReportPageViewer.setReportSource(reportSource); // set viewer attributes crystalReportPageViewer.setOwnPage(true); crystalReportPageViewer.setOwnForm(true); // Apply the viewer preference attributes // Process the report crystalReportPageViewer.processHttpRequest(request, response, application, null); } // ****** END CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET **************** } catch (ReportSDKExceptionBase e) { out.println(e); } %> 2) In a other report I tried to update the data source used by the report at runtime. I used the method 'setDataSource(ResultSet rs, String oldTableAlias, String newTableAlias)' of the 'DatabaseController'. I got a message like this: 'At present in Java reporting Component does not implement'. I use JRC and the docs (http://support.businessobjects.com/global/interactive/xi/om/JRC/default.html) show me this method. Is it not possible to change the data at runtime in JRC? (I tried it with the methods 'setDataSource(IXMLDataSet rs, String oldTableAlias, String newTableAlias)', 'setDataSource(Object newds)', 'setDataSource(IDataSet ds, String oldTableAlias, String newTableAlias)', too. But the result was the same!) 3) I tried to use Business Objects in JSF framework (Ver MyFaces 1.1.3) with the same samples above. But in JSF nothing work! I got the following exception. What is my problem? Can you get me a tutorial for jsf/BusinessObjects? 08:21:43,165 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception javax.faces.FacesException: com.businessobjects.reports.sdk.JRCCommunicationAdapter at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:435) at org.apache.myfaces.application.jsp.JspTilesViewHandlerImpl.dispatch(JspTilesViewHandlerImpl.java:233) at org.apache.myfaces.application.jsp.JspTilesViewHandlerImpl.renderView(JspTilesViewHandlerImpl.java:219) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at de.itinformatik.mes.web.filter.SynchronizingFilter.doFilter(SynchronizingFilter.java:42) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at de.itinformatik.mes.web.ajax.aa.AAFilter.doFilter(AAFilter.java:54) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.ClassCastException: com.businessobjects.reports.sdk.JRCCommunicationAdapter at com.crystaldecisions.sdk.occa.report.application.ReportClientDocumentState.saveContents(Unknown Source) at com.crystaldecisions.sdk.occa.report.application.ReportClientDocumentState.save(Unknown Source) at com.crystaldecisions.xml.serialization.XMLObjectSerializer.save(Unknown Source) at com.crystaldecisions.sdk.occa.report.application.ReportClientDocument.writeExternal(Unknown Source) at com.crystaldecisions.sdk.occa.report.application.AdvancedReportSource.writeExternal(Unknown Source) at com.crystaldecisions.sdk.occa.report.application.NonDCPAdvancedReportSource.writeExternal(Unknown Source) at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1304) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1282) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291) at java.util.Hashtable.writeObject(Hashtable.java:813) 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:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:890) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1333) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291) at java.util.ArrayList.writeObject(ArrayList.java:569) at sun.reflect.GeneratedMethodAccessor669.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:890) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1333) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291) at java.util.ArrayList.writeObject(ArrayList.java:569) at sun.reflect.GeneratedMethodAccessor669.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:890) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1333) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1284) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1245) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1069) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291) at org.apache.myfaces.application.jsp.JspStateManagerImpl.serializeView(JspStateManagerImpl.java:590) at org.apache.myfaces.application.jsp.JspStateManagerImpl.saveSerializedViewInServletSession(JspStateManagerImpl.java:493) at org.apache.myfaces.application.jsp.JspStateManagerImpl.saveSerializedView(JspStateManagerImpl.java:332) at org.apache.myfaces.taglib.core.ViewTag.doAfterBody(ViewTag.java:122) at org.apache.jsp.testCR_jsp._jspx_meth_f_view_0(org.apache.jsp.testCR_jsp:149) at org.apache.jsp.testCR_jsp._jspService(org.apache.jsp.testCR_jsp:83) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:416) ... 32 more Thanks for your assistance Tosch

Which Business Objects are you referring to.
MS .NET has a thing called Business Objects but they only work in .NET.

A problem with ArrayLists

Hello
I'm pretty new to Java, and sometimes all those objects, instances, classes, data types etc confuse me. I'm having some kind of a problem with ArrayLists (tried with vectors too, didn't work) . I'm writing a program which takes float numbers from user input and does stuff to them. No syntax error in my code, but I get a java.lang.ClassCastException when I run it.
I insert stuff to the ArrayList like this:
luku.add(new Float(syotettyLuku));no problem
I'm trying to access information from the list like this inside a while loop
float lukui = new Float((String)luku.get(i)) .floatValue();but the exception comes when the programme hits that line, no matter which value i has.
Tried this too, said that types are incompatible:
float lukui = ((float)luku.get(i)) .floatValue();What am I doing wrong? I couldn't find any good tutorials about using lists, so i'm really lost here.
I'll post the whole code here, if it helps. Sorry about the Finnish variable and method names, but you get the idea :)
package esa;
import java.io.*;
import java.util.*;
public class Esa {
static final int maxLukuja = 100;
static BufferedReader syote = new BufferedReader(new InputStreamReader(System.in));
static String rivi;
static String lopetuskasky = "exit";
static double keskiarvo;
static ArrayList luku = new ArrayList();
static int lukuja;
static float summa = 0;
// M��ritell��n pari metodia, joiden avulla voidaan tarkastaa onko tarkasteltava muuttuja liukuluku
static Float formatFloat(String rivi) {
 if (rivi == null) {
 return null;
 try {
 return new Float(rivi);
 catch(NumberFormatException e) {
 return null;
static boolean isFloat(String rivi) {
 return (formatFloat(rivi) != null);
// Luetaan luvut k�ytt�j�lt� ja tallnnetaan ne luku-taulukkoon
static void lueLuvut() throws IOException{
 int i = 0;
 float syotettyLuku;
 while(i < maxLukuja) {
 System.out.println("Anna luku kerrallaan ja paina enter. Kun halaut lopettaa, n�pp�ile exit");
 rivi = syote.readLine();
 boolean onkoLiukuluku = isFloat(rivi);
 if (onkoLiukuluku) {
 syotettyLuku = Float.parseFloat(rivi);
 if (syotettyLuku == 0) {
 lukuja = luku.size();
 break;
 } // if syotettyluku
 else {
 luku.add(new Float(syotettyLuku));
 i++;
 } // else
 } // if onkoLiukuluku
 else {
 System.out.println("Antamasi luku ei ole oikeaa muotoa, yrit� uudelleen.");
 System.out.println("");
 } // else
 } // while i < maxlukuja
// lueLuvut
static void laskeKeskiarvo() {
 int i = 0;
 while(i < lukuja) {
 float lukui = ((float)luku.get(i)) .floatValue();
 System.out.println(lukui);
 summa = summa + lukui;
 } i++;
 keskiarvo = (summa / lukuja);
} // laskeKeskiarvo
public static void main(String args[]) throws IOException {
lueLuvut();
laskeKeskiarvo();
} // main
} // class

Thanks! Now it's functioning.
As I mentioned, I tried this:
float lukui = ((float)luku.get(i))
.floatValue();And your reply was:
float lukui =
((Float)luku.get(i)).floatValue So the problem really was the spelling, it should
have been Float with a capital F.
From what I understand, Float refers to the Float
class, Correct. And float refers to the float primitive type. Objects and primitives are not interchangeable. You need to take explicit steps to convert between them. Although, in 1.5/5.0, autoboxing/unboxing hide some of this for you.
so why isn't just a regular float datatype
doing the job here, like with the variable lukui?Not entirely sure what you're asking.
Collections take objects, not primitives, and since you put an object in, you get an object out. You then have to take the extra step to get a primitive representation of that object. You can't just cast between objects and primitives.
Again, autoboxing will relieve some of this drudgery. I haven't used it myself yet, so I can't comment on how good or bad it is.

Problems with async callback with the BPEL Java API (Urgent- pls help)

Hi,
I have an async BPEL process and I invoke it form a JSP page using BPEL java API.
I have followed the tutorials and docs at:
$SOA_HOME/bpel\samples\tutorials\102.InvokingProcesses\rmi\com\otn\samples\async
I can inititiate successfully the process, but when I try to get the result using getResult() or getField(String fieldName) methods I get the error:
Oct 2, 2007 2:35:16 PM oracle.j2ee.rmi.RMIMessages EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER
WARNING: Exception returned by remote server: {0}
java.lang.ExceptionInInitializerError
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:242)
 at com.evermind.io.ClassLoaderObjectInputStream.resolveClass(ClassLoaderObjectInputStream.java:33)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1538)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
 at com.evermind.server.rmi.RMIClientConnection.handleMethodInvocationResponse(RMIClientConnection.java:856)
 at com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse(RMIClientConnection.java:287)
 at com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClientConnection.java:242)
 at com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RMIClientConnection.java:224)
 at com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.java:152)
 at com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnection.java:127)
 at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)
 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.util.MissingResourceException: Can't find bundle for base name com.collaxa.cube.i18n.exception_cube, locale en_US
 at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:836)
 at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:805)
 at java.util.ResourceBundle.getBundle(ResourceBundle.java:699)
 at com.collaxa.cube.CubeException.getResourceBundle(CubeException.java:142)
 at com.collaxa.cube.CubeException.<clinit>(CubeException.java:82)
 ... 17 more
07/10/02 14:35:16 java.lang.ClassCastException: java.util.MissingResourceException
07/10/02 14:35:16 at com.oracle.bpel.client.delivery.ext.async.thread.AsyncInstanceWatchdog.run(AsyncInstanceWatchdog.java:152)
I check for the result only after I have checked that the instance is closed (completed or faulted) by using IInstanceHandle:getState() and InstanceHandle.STATE_CLOSED_COMPLETED, or IInstanceHandle.STATE_CLOSED_FAULTED
I would like to add that so far I had no problems with invocation and geting result of sync BPEL processes. I do not what is missing for async processes.
Any kind of help is appreciable.
Thanks and best regards,
Evanela

Hi again,
i managed to solve the problem:) Totally stupid.. the process variable name was not specified correctly..., but more stupid sounds the error message:))))
Best Regards,
Evanela

Having problem with IUser

Hi Everyone
I have made the login() method but i am facing the problem while making the resource context...Because in Resource Context it takes IUser of package
com.sapportals.portal.security.usermanagement.IUser but I have got IUser of package com.sap.security.api.IUser ...while type Casting it with below code it is giving ClassCAstException.......
public class NewSimpleServlet extends HttpServlet {
protected void doGet(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
StringBuffer s = new StringBuffer();
try {String j_user="epuser";
String j_password="Abcd1234";
request.setAttribute("j_user", j_user);
request.setAttribute("j_password", j_password);
javax.security.auth.Subject subject;
Set principals = UMFactory.getLogonAuthenticator().logon(request, response, "uidpwdlogon").getPrincipals();
i have problem with getting IUser object from set of principals. In javadoc is written: "In order to get an IUser object from this subject, call Subject.getPrincipals() and iterate through the returned Set of principals." so i tried to iterate but i was not able to get that IUser with any casting. Do u know how it should be?
IUser serviceUser = (IUser)subject.getPrincipals().iterator().next();
Now in resource Context
ResourceContext c = new ResourceContext(User);
Here resource context need IUser type object as parameter...
I also tried st like this
loggedUser = UMFactory.getAuthenticator().getLoggedInUser(request, response);
but loggedUser is not authenticated.
Can Anyone Help me Out...
Thanks
Rupesh Khemka

posted two times

Remote JDBC Problem with Oracle BPM Studio

Hi all, i am facing the Remote JDBC Problem with Oracle BPM Studio.
When i configure a Remote JDBC Connection for SQL in BPM Studio, it prompt me an error.
The SQL Connection is configured as following :
External Resource:
Name : MyDS
Type : SQL Database
Supported Types : Remote JDBC
Details:
Database Type : BPM's Oracle Driver Version:10, 11
J2EE : WLS
Lookup Name : MyAppDS
Configuration for "WLS"
Name : WLS
Type : J2EE Application Server
Supported Types : GENERIC_J2EE
Details:
Initial Context Factory : weblogic.jndi.WLInitialContextFactory
URL : t3://localhost:7001
But, when i try to connect to the Database by using this configuration, I will get an Exception.
An exception occurred while getting a resource from a connector.
Detail:The connector [[ MyDS : SQL : REMOTE_JDBC ]] caused an exception when getting a resource.
Caused by: An exception occurred while getting a resource from a connector.
Detail:The connector [[ WLS : J2EE : J2EE ]] caused an exception when getting a resource.
Caused by: javax.naming.NoInitialContextException: Cannot instantiate class: weblogic.jndi.WLInitialContextFactory [[ Root exception is java.lang.ClassNotFoundException: weblogic.jndi.WLInitialContextFactory ]]
 at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
 at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
 at javax.naming.InitialContext.init(InitialContext.java:223)
 at javax.naming.InitialContext.<init>(InitialContext.java:197)
 at fuego.jndi.FaultTolerantContext.createContext(FaultTolerantContext.java:726)
 at fuego.jndi.FaultTolerantContext.<init>(FaultTolerantContext.java:79)
 at fuego.connector.impl.GenericJ2EEConnector.createInitialContext(GenericJ2EEConnector.java:177)
 at fuego.connector.impl.GenericJ2EEConnector.createStandaloneContext(GenericJ2EEConnector.java:98)
 at fuego.connector.impl.BaseJ2EEConnector.getResource(BaseJ2EEConnector.java:92)
 at fuego.connector.impl.BaseJ2EEConnector.getResource(BaseJ2EEConnector.java:76)
 at fuego.connector.J2EEHelper.getReadOnlyContext(J2EEHelper.java:86)
 ... 12 more
Edited by: user2262377 on Jun 22, 2009 4:01 PM

I guess the weblogic.jar is not included in the studio.
So, i added weblogic.jar (Weblogic 10.3) and wlclient.jar (Weblogic 10.3)
It is working in my simple java code. But, still not working in BPM Studio.
The error logs:
An exception occurred while getting a resource from a connector.
Detail:The connector [OFT_APP_DS:SQL:REMOTE_JDBC] caused an exception when getting a resource.
Caused by: java.lang.Object cannot be cast to java.io.Serializable
fuego.connector.ConnectorException: An exception occurred while getting a resource from a connector.
Detail:The connector [OFT_APP_DS:SQL:REMOTE_JDBC] caused an exception when getting a resource.
 at fuego.connector.ConnectorException.exceptionOnGetResource(ConnectorException.java:88)
 at fuego.connector.JDBCHelper.getReadOnlyConnection(JDBCHelper.java:93)
 at fuego.sqlintrospector.BrowserPanel.connect(BrowserPanel.java:395)
 at fuego.sqlintrospector.BrowserPanel.populateTree(BrowserPanel.java:200)
 at fuego.ui.wizards.ui.CheckTreeBrowser$1.construct(CheckTreeBrowser.java:63)
 at fuego.ui.SwingWorker$2.run(SwingWorker.java:39)
 at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: java.lang.Object cannot be cast to java.io.Serializable
 at weblogic.iiop.IIOPOutputStream.writeAny(IIOPOutputStream.java:1588)
 at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2231)
 at weblogic.utils.io.ObjectStreamClass.writeFields(ObjectStreamClass.java:413)
 at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:235)
 at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:225)
 at weblogic.corba.utils.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:182)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1963)
 at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:2001)
 at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2266)
 at weblogic.jdbc.common.internal.RmiDataSource_WLSkel.invoke(Unknown Source)
 at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
 at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:230)
 at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
 at weblogic.security.service.SecurityManager.runAs(Unknown Source)
 at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
 at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Problems with Query Panel with Table

Hi. I'm having a problems with this component in runtime. I'm using JDev 11.1.1.1 with ADFBC.
The query uses three optional parameters. When i put a value for the first and leave other blank and execute query, following error is produced:
03/11/2009 04:02:28 AM oracle.adfinternal.view.faces.config.rich.RegistrationConfigurator handleError
GRAVE: Server Exception during PPR, #6
javax.el.ELException: java.lang.ClassCastException: oracle.jbo.common.ViewCriteriaImpl cannot be cast to oracle.jbo.ViewCriteriaRow
     at com.sun.el.parser.AstValue.invoke(AstValue.java:161)
     at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodExpression(UIXComponentBase.java:1282)
     at oracle.adf.view.rich.component.UIXQuery.broadcast(UIXQuery.java:115)
I couldn't find any reference about this. Please help....
Thanks

Frank,
I am also getting the same error. The version I am using is 11g Release 1(11.1.1.2.0)
Here is what I did:
1. created a view criteria on a view object
2. all are optional
3. Dragged the view criteria as a query component (query panel with query table) on to the design layout
and the error when I clicked the Search button is:
javax.el.ELException: java.lang.ClassCastException: oracle.jbo.common.ViewCriteriaImpl cannot be cast to oracle.jbo.ViewCriteriaRow
     at com.sun.el.parser.AstValue.invoke(AstValue.java:161)
     at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
     at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodExpression(UIXComponentBase.java:1289)
     at oracle.adf.view.rich.component.UIXQuery.broadcast(UIXQuery.java:115)
     at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:148)
     at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:148)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:812)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:292)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:191)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at sni.foundation.facesextensions.filters.FoundationFilter.doFilter(FoundationFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:97)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:420)
     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:420)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:94)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:138)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:326)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3592)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2202)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2108)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1432)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Caused by: java.lang.ClassCastException: oracle.jbo.common.ViewCriteriaImpl cannot be cast to oracle.jbo.ViewCriteriaRow
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding._clearFilterCriteriaRows(FacesCtrlSearchBinding.java:4549)
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding._addFilterCriteria(FacesCtrlSearchBinding.java:4603)
     at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding.processQuery(FacesCtrlSearchBinding.java:423)
     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:597)
     at com.sun.el.parser.AstValue.invoke(AstValue.java:157)
Thanks
Venkatesh

Problems with SoapMessage Handler in SJS AS 8.1

Hi!
I try to post it in this forum as well, since there is no response in the WebService forum, and it also seems to be a problem with the application server.
I have problems with execution of standard soap message handler.
Both webservice and handler is of "HelloWorld" and is generated in the NetBeans 4.1 IDE and follows the standards of WebService and GenericHandler
When I try the WebService Runtime testtool integrated in NetBeans, the handler and webservice works fine on the localhost SJS AS 8.1. Then I try to execute the same wsdl from other test environment(like soapscope) and I receive an error from the SJS AS(JAXRPC.TIE.04: Internal Server Error (JAXRPCTIE01: caught exception while handling request: java.lang.ClassCastException: com.sun.xml.messaging.saaj.soap.impl.TextImpl))
Then I try to deploy without references to the handler in the webservice.xml, and then webservice works fine.(also through soapscope).
Is there some server settings that I have missed??
I also have the latest build of NetBeans 4.1 and a standalone version of SunAppserver 8.1(Sun Java System Application Server Platform Edition 8.1 2005Q2 UR2)
Stacktrace from the server:
[#|2005-06-16T14:11:09.546+0200|WARNING|sun-appserver-pe8.1_02|javax.enterprise .system.container.web|_ThreadID=16;|preWebHandlerError
java.lang.ClassCastException: com.sun.xml.messaging.saaj.soap.impl.TextImpl
at com.sun.xml.rpc.server.StreamingHandler.getOpcodeForRequestMessage(StreamingHan dler.java:628)
at com.sun.enterprise.webservice.WsUtil.getInvMethod(WsUtil.java:943)
at com.sun.enterprise.webservice.ServletPreHandler.handleRequest(ServletPreHandler .java:55)
at com.sun.xml.rpc.client.HandlerChainImpl.handleRequest(HandlerChainImpl.java:86)
at com.sun.xml.rpc.server.StreamingHandler.callRequestHandlers(StreamingHandler.ja va:918)
at com.sun.xml.rpc.server.StreamingHandler.preHandlingHook(StreamingHandler.java:8 31)
at no.vsusdag.ws.DagWSEPSEI_Tie.preHandlingHook(DagWSEPSEI_Tie.java:236)
at com.sun.xml.rpc.server.StreamingHandler.handle(StreamingHandler.java:102)
at com.sun.xml.rpc.server.http.JAXRPCServletDelegate.doPost(JAXRPCServletDelegate. java:443)
at com.sun.enterprise.webservice.JAXRPCServlet.doPost(JAXRPCServlet.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:767)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFil terChain.java:257)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterCha in.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.ja va:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain .java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 263)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextVal ve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 173)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:13 2)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.ja va:653)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.ja va:534)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.jav a:403)
at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55)
|#]
[#|2005-06-16T14:11:09.546+0200|SEVERE|sun-appserver-pe8.1_02|com.sun.xml.rpc.s erver|_ThreadID=16;|com.sun.xml.messaging.saaj.soap.impl.TextImpl
java.lang.ClassCastException: com.sun.xml.messaging.saaj.soap.impl.TextImpl
at com.sun.enterprise.webservice.WsUtil.throwSOAPFaultException(WsUtil.java:972)
at com.sun.enterprise.webservice.ServletPreHandler.handleRequest(ServletPreHandler .java:68)
at com.sun.xml.rpc.client.HandlerChainImpl.handleRequest(HandlerChainImpl.java:86)
at com.sun.xml.rpc.server.StreamingHandler.callRequestHandlers(StreamingHandler.ja va:918)
at com.sun.xml.rpc.server.StreamingHandler.preHandlingHook(StreamingHandler.java:8 31)
at no.vsusdag.ws.DagWSEPSEI_Tie.preHandlingHook(DagWSEPSEI_Tie.java:236)
at com.sun.xml.rpc.server.StreamingHandler.handle(StreamingHandler.java:102)
at com.sun.xml.rpc.server.http.JAXRPCServletDelegate.doPost(JAXRPCServletDelegate. java:443)
at com.sun.enterprise.webservice.JAXRPCServlet.doPost(JAXRPCServlet.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:767)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFil terChain.java:257)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterCha in.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.ja va:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain .java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 263)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextVal ve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 173)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:13 2)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:185)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.ja va:653)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.ja va:534)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doTask(ProcessorTask.jav a:403)
at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:55)
|#]
Hope someone have some tips and can help me.
thanks
Dag Arvola

Hi,
I too use SOAPScope and have faced the same problem.
With some trial and error figured out that the problem is possibly with the way the XML string is parsed by the Message Handler classes.
Here is the detail and hope it helps you too. The work around is to remove any white spaces / new line chars following the <Body> tag.
Rgds, Rajasekhar
I uploaded a SOAPScope workspace with different message invocations, with the "Message Handler" configured.
The work space is @
http://www.mindreef.net/tide/shared/workspace/e36d678cbb35389dd238fa16a8cdeb14
The 1st Message is the one captured in SOAPScope, while invoked from the NetBeans IDE itself.
If you observe the 3rd message that failed and the 4th Message that works, the only difference is the string that is posted to the Web Service URI.
From Resend > Preview Edit
3rd Message is a properly formatted xml document with the third line reading as just
<soap:Body>
where as
4th Message is not a properly formatted xml document with the third line reading as
<soap:Body><mrns0:createCustomer>
Even a <Space> as in "<soap:Body> <mrns0:createCustomer>" causes a SOAP Fault to occur.
*********************

Attempt to process file failed with ClassCastException

Hi
I have checked in http://host:por/MessageSystem there i got the following error...
Attempt to process file failed with ClassCastException
Can any one please tell me how to resolve the problem
Best Regards
Ravi Shankar B

Ravi,
I dont think it is feasible. Eventhough you have two files with the same name do you have the data same? Practically it should not be. Let us know your complete requiremens. Also see this link for some help on file validations:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.highlightedcontent?documenturi=%2flibrary%2fxi%2fxi-design_configuration%2ffileValidationsinSAPXI-ACaseStudy.pdf
---Satish

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