Missing Class error from handler class - urgent question!

Hi,
I am getting an "Missing Class" error when running a web service. The web service was generated from a Java class via the "create J2EE web service" option.
The web service has a JAX-RPC handler class added, which belongs to the same package as a logging class. The logging class is used to write to a file for debug purposes. A "missing class" error is being generated whenever I attempt to invoke the web service (via the enterprise manager test util), the error refers to the logging class which is used by the main handler class. The JAX-RPC handler works fine by itself, the error is only seen when I attempt to use the logging class.
I have re-built, re-deployed from scratch again, but still get the same error! Am I missing something simple here?
thanks for any advice

Hello,
I have posted something similar, but I am not sure how to get over this issue. I am not sure if this is a code issue, I have scanned both EJB 2.0 and 2.1 specifications, but nothing caught my eye.
Here is the error I am getting starting this in JDeveloper 1013 :
Apr 11, 2006 12:17:49 AM com.evermind.server.Application setConfig
WARNING: Application: current-workspace-app is in failed state as initialization failedjava.lang.InstantiationException: Error initializing ejb-modules: [current-workspace-app:CNSI-JDev-7_Exp-7_0:DbUtilWrapper] - Unable to load ejb-class com.my.common.database.ejb.DbUtilWrapperBean, see section 23.2 of the EJB 2.1 specificationjava.lang.ExceptionInInitializerError: java.lang.NullPointerException
Here is the ejb-jar.xml :
<session>
<description>Session Bean ( Stateless )</description>
<display-name>DbUtilWrapper</display-name>
<ejb-name>DbUtilWrapper</ejb-name>
<home>com.my.common.database.ejb.DbUtilWrapperHome</home>
<remote>com.my.common.database.ejb.DbUtilWrapper</remote>
<local-home>com.my.common.database.ejb.DbUtilWrapperLocalHome</local-home>
<local>com.my.common.database.ejb.DbUtilWrapperLocal</local>
<ejb-class>com.my.common.database.ejb.DbUtilWrapperBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
I am not sure if this should be in the assembly-descriptor, in ejb-jar.xml or orion-ejb-jar.xml :
<method-permission>
<unchecked/>
<method>
<ejb-name>DBUtilWrapper</ejb-name>
<method-name>*</method-name>
</method>
</method-permission>
Any ideas ?
Thanks

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Hi,
I am getting an "Missing Class" error when running a web service. The web service was generated from a Java class via the "create J2EE web service" option.
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=============================
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=============================
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</part><part name="detail"><detail>org.collaxa.thirdparty.apache.wsif.WSIFException: Could not instantiate InteractionSpec oracle.tip.adapter.soa_erp.AppsStoredProcedureInteractionSpec due to:
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The missing class is not available from any code-source or loader in the system.</detail>
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Hi,
This issue occurs if any tag is missing in one of the following files
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server.xml
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Thanks in advance.
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This is just a suggestion. In OC4J stand-alone 10.1.3.0.0, you can still use the "applib" subdirectory. In other words, try removing the shared library you created, as well as any references to it in any of your deployment descriptors or OC4J configuration files and simply place all the required JARs in the "applib" subdirectory. Then undeploy your application completely -- in other words, delete all related files and directories and remove all references to it in the OC4J configuration files -- and deploy it again.
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– or –
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regards - rutwik

Surprise Surprise !
I just tried deploying the file via uploading it from the Application Server Control UI and it worked fine.
Till now, I was ftp'ing the ear file from my PC to the server on which Oracle AS is running and was telling Application Server Control to pick form that uploaded location.
I am still not clear on why it works with HTTP upload and not via the FTP upload?
cheers - rutwik

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<Nov 21, 2011 9:57:11 PM EST> <Error> <oracle.soa.bpel.engine.xml> <BEA-000000> <
javax.xml.xpath.XPathExpressionException: Extension function error: Class not found '
Missing class: oracle.apps.aia.core.xpath.AIAFunctions
Dependent class: oracle.xml.xpath.XSLExtFunctions
Loader: sun.misc.Launcher$AppClassLoader@136597364
Code-Source: /opt/app/oracle/mw_home/oracle_common/modules/oracle.xdk_11.1.0/xmlparserv2_sans_jaxp_services.jar
Configuration: /opt/app/oracle/mw_home/oracle_common/modules/oracle.xdk_11.1.0/xmlparserv2_sans_jaxp_services.jar
Thanks,
Vijay.

Hello,
I have posted something similar, but I am not sure how to get over this issue. I am not sure if this is a code issue, I have scanned both EJB 2.0 and 2.1 specifications, but nothing caught my eye.
Here is the error I am getting starting this in JDeveloper 1013 :
Apr 11, 2006 12:17:49 AM com.evermind.server.Application setConfig
WARNING: Application: current-workspace-app is in failed state as initialization failedjava.lang.InstantiationException: Error initializing ejb-modules: [current-workspace-app:CNSI-JDev-7_Exp-7_0:DbUtilWrapper] - Unable to load ejb-class com.my.common.database.ejb.DbUtilWrapperBean, see section 23.2 of the EJB 2.1 specificationjava.lang.ExceptionInInitializerError: java.lang.NullPointerException
Here is the ejb-jar.xml :
<session>
<description>Session Bean ( Stateless )</description>
<display-name>DbUtilWrapper</display-name>
<ejb-name>DbUtilWrapper</ejb-name>
<home>com.my.common.database.ejb.DbUtilWrapperHome</home>
<remote>com.my.common.database.ejb.DbUtilWrapper</remote>
<local-home>com.my.common.database.ejb.DbUtilWrapperLocalHome</local-home>
<local>com.my.common.database.ejb.DbUtilWrapperLocal</local>
<ejb-class>com.my.common.database.ejb.DbUtilWrapperBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
I am not sure if this should be in the assembly-descriptor, in ejb-jar.xml or orion-ejb-jar.xml :
<method-permission>
<unchecked/>
<method>
<ejb-name>DBUtilWrapper</ejb-name>
<method-name>*</method-name>
</method>
</method-permission>
Any ideas ?
Thanks

Error Missing class: oracle.dms.instrument.ExecutionContextForJDBCDependen

I downloaded Oracle SQL Developer 1.5 for Windows from the Oracle website and installed it on my computer. This zip file includes the JDK1.5.0_06. Then I ran Help | Check For Updates. This installed JTDS JDBC Driver 11.1.1.5304 and MySQL JDBC Driver 11.1.1.5304. I am trying to create a new database connection. Below are my settings.
Connection Name = TEST
Username = <the schema name>
Password = <the password>
Save Password = unchecked
Role = default
Connection Type = TNS
OS Authentication = unchecked
Proxy Connection = unchecked
Network Alias = <alias from tnsnames.ora>
When I click the [Connect] button I get the following message:
Status : Failure - Test failed: Missing class: oracle.dms.instrument.ExecutionContextForJDBCDependent class: oracle.jdbc.driver.Physica...
Any help on resolving this would be greatly appreciated.
Thank you.

Thanks also!!!
NB ... path for sql dev must be one's own local path ... I copied from this OTN board ... and ... it didn't work.
When I went to try again, step by step, from a DOS prompt, I realized ... duh ... the path ...
But it is odd ... it wants its own JDBC class stuff ... why can't it find it when you put it on a short cut with a "start in" directory as itself?
Sometimes I hate computers ...
(I upgraded because my older version "just refused" to run one day ... had been meaning to try newer version)

Problems running servlet due to missing classes?

Hi everyone,
I am doing a project which requires me to convert a java coding into a servlet. This java coding I am working on is some kind of location based service which tracks people (receiving an argument of a string as IP). It imports an external SDK called Ekahau SDK (some off the shelve product). Now I wish to convert it into a servlet so that the function that the java coding performs can be run from a webpage i created.
I have previously posted a thread on this forum called "Converting java coding into servlets?" when I had trouble compiling the servlet. Now that I could compile the servlet already, I still have problems running the servlet from my browser.
The webserver I am using is Apache Tomcat. Previously I was trying Apache HTTP server but since now I need to use servlet, I have shifted to Tomcat instead. I have been getting these "java.lang.NoClassDefFoundError:" when running the servlet from the browser. From the previous thread, I got suggestions from the replies saying that I need to put the jar files I need into my "C:\Tomcat\webapps\try\WEB-INF\lib" directory. I have been looking for the missing jar files from the internet and putting them into my "C:\Tomcat\webapps\try\WEB-INF\lib", but each time after adding a new jar file, I get another new "java.lang.NoClassDefFoundError:". Are the missing jar files really the problems? Cause it seems a bit weird to me that I need some many jar files which I dont even know why I need them for.
The HTTP status 500 error look like this:
description
The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
root cause
java.lang.NoClassDefFoundError: org/apache/excalibur/configuration/CascadingConfiguration
com.ekahau.G.N.A(Unknown Source)
com.ekahau.G.N.<init>(Unknown Source)
com.ekahau.sdk.imp.yax.D.<init>(Unknown Source)
com.ekahau.sdk.imp.yax.E.connect(Unknown Source)
com.ekahau.sdk.PositioningEngine.connect(Unknown Source)
coreservlets.testing.find(testing.java:75)
coreservlets.testing.doGet(testing.java:36)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
Here are the series of jar files I have been looking from the internet to add them into my "C:\Tomcat\webapps\try\WEB-INF\lib" directory:
1) org/apache/commons/collections/Closure
2) org/apache/log4j/Logger
3) org/apache/commons/lang/Validate
4) org/apache/excalibur/configuration/CascadingConfiguration
Please help~~ Thanks a lot.
My servlet coding is like this:
package coreservlets;
import java.io.*;
import java.util.*;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.ekahau.sdk.*;
public class testing extends HttpServlet
     String ipAddress;
     int result;
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
              ipAddress = request.getParameter("deviceIP");
          try
               result = find();
          catch (IOException e)
               System.out.println("Error..." + e.toString());
          catch (EngineException e)
               System.out.println("Error..." + e.toString());
          response.setContentType("text/html");
              PrintWriter write = response.getWriter();
          write.println("<HTML>\n" +
"<HEAD><TITLE>Tryget</TITLE></HEAD>\n" +
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
result +
"</BODY></HTML>");
     public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
              doGet(request, response);
     public int find() throws EngineException, IOException
          PositioningEngine.connect();
              // Find the given device:
              Device[] devices = PositioningEngine.findDevice("NETWORK.IP-ADDRESS", ipAddress);
              if (devices.length == 0)
                     System.err.println("Device with IP address " + ipAddress + " not found.");
               PositioningEngine.disconnect();
               return 0;
          else
                     TrackedDevice device = new TrackedDevice(devices[0]);
                     // Create a simple handler for locations for one-time usage:
                     LocationEstimateListener estimateListener = new LocationEstimateListener()
                       public void handleLocationEstimate(LocationEstimate locationEstimate, TrackedDevice device)
                              // Change getLatestLocation to getAccurateLocation if you want
                              // a bit more accurate but a few seconds delayed location.
                              Location loc = locationEstimate.getLatestLocation();
                         final double coX = loc.getX();
                         final double coY = loc.getY();
                         try{
                         FileWriter file = new FileWriter ("C:\\Documents and Settings\\xamule\\Desktop\\Testing\\output\\output.txt");
                         String x = Double.toString(coX);
                         String y = Double.toString(coY);
                         String coor = x + "\t" + y;
                         file.write(coor);
                         file.close();
                         catch (IOException e){
                         System.out.println("Error..." + e.toString());
               StatusListener statusListener = new StatusListener()
                       public void handleStatus(Status status, TrackedDevice device)
                              System.err.println(new Date()+"\tStatus for device: " + status);
                     // Add listeners and start tracking
                     device.addLocationEstimateListener(estimateListener);
                     device.addStatusListener(statusListener);
                     device.setTrackingParameter("EPE.LOCATION_UPDATE_INTERVAL","6000");
                     device.setTracking(true);
                     // Wait until user inputs something. When he/she does, stop tracking and quit application
                     //BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                     //in.readLine();
                     // Stop tracking and disconnect from the positioning engine:
                     device.setTracking(false);
                     PositioningEngine.disconnect();
               return 1;
}

Well, it's kind of logical that as you put more jar files (classes) in Tomcat, it changes the error to ask for the classes (inside a jar) it cannot find.
There was a good class->jar finder on the internet some years ago, but i don't remember the address. Try looking for that and search all the missing classes (NotDefined) and their correspondig jar files.
Good Luck!

SFTP with FTP Adapter - Missing class: com.maverick.ssh.SshTransport

Hi,
I am trying to use the SFTP with FTP Adapter for a project requirement.
I have followed the steps as mentioned in the below link
http://download-uk.oracle.com/docs/cd/B31017_01/integrate.1013/b28994/adptr_file.htm#CACDFFFB
Have configured the oc4j_ra.xml file, but after creating a sample BPEL process with the FTP adapter, got this error message in the log file.
<2010-04-12 11:21:16,493> <FATAL> <default.collaxa.cube.activation> <AdapterFramework::Inbound> Uncaught exception oracle.classloader.util.AnnotatedNoClassDefFoundError in JCA-work-instance:FTP Adapter-4 - cause:
Missing class: com.maverick.ssh.SshTransport
Dependent class: oracle.tip.adapter.ftp.SshImpl.SshImplFactory
Loader: FtpAdapter:0.0.0
Code-Source: /D:/product/10.1.3.1/OracleAS_1/j2ee/home/connectors/FtpAdapter/FtpAdapter/ftpAdapter.jar
Configuration: <code-source> in D:\product\10.1.3.1\OracleAS_1\j2ee\home\connectors\FtpAdapter\FtpAdapter
The missing class is not available from any code-source or loader in the system.
I tried getting a trial licencse for the maverick SSH tool from http://www.3sp.com/requestEvaluation.do?productCode=MAVERICK as discussed in one of the threads, but it redirects to http://www.barracudanetworks.com/ns/products/sslvpn_overview.php
Could anyone please help in this?
OR
Provide steps on how to use SFTP with FTP Adapter.
Regards,
Varun

Hi,
Thanks for the reply.
As per client's requirement, we shouldn't be using java service for this functionality.
And as you said, the oracle adapters are not taking anywhere, but guess have no other choice..
Cheers,
Varun

Missing Class error from handler class - urgent question!

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