NoClassDefFound Error in Scho example

While I am an old programmer, I am new to the Java language. I am working my way through the JWSDP Tutorial, and have successfully installed the JWSDP-1_0_01 code, and had previously installed the J2EE (JDK1.3.1_01). Both seem to work fine - I have done other java stuff with J2EE, and the GSApp ran fine.
I am now trying to run the first of the Echo examples. It compiled successfully, but now I am getting a java.lang.NoClassDefFoundError. It would appear that this is the "catch-all" error from the Java runtime command - I issue the Java command, with -classpath and the name of the program, and try to pass it the file with the XML. All seems well, but I get the error. If I issue the same command pointing to an incorrect place, I get the same error, leading me to believe that it can't find the Echo.class file. But I am issuing the command from a c prompt with the current directory being the one that the class statement is found in.
In searching the list of messages on this thread, I found reference to a "package" statement, but this example doesn't contain one - I assume since the entire code is in the one module.
It has to be something stupid that I am doing - anyone have a suggestion on what it is?
BTW - I am on NT4.
Jerry Lawson

Hi,
I am encountering the same problem as well. I am just wondering if you have found the solution to your problem as until now I can't find a way to get around it.
Regards,
Patrick

Similar Messages

NoClassDefFound error

I have a problem when I try to execute a java class file.
I get the NoClassDefFound error. I went in and set my Classpath in windows xp and pointed it to my bin. I am able to compile the program but when I try to run it I get the NoClassDefFound error. I have tried various means to get it to run.
I can see the class file in the directory I am in in the CMD prompt. I can not run any java class file.
Once again I have set the Classpath and am using the same version of compiler and java.exe. I am not adding the extension .class to the end I even tried Crimson Editor and set the java.exe path and set the argument to $[FileTitle].
I unistalled all my java and reinstalled it and still have problems with running any class file even the examples that java has included.
Any help would be gratefully appreciated.

set my Classpath in windows xp and pointed it to my bin.The above is incorrect.
Delete the CLASSPATH environment variable. Do not set it again until you understand how to use it. Read the documentation here to learn that:
http://java.sun.com/javase/6/docs/technotes/tools/index.html#general
Change to the directory that contains the .class file and use this command:
java -cp . <nameOfTheClass>
IMPORTANT: include the period and surrounding spaces.

NoClassDefFound error oracle/sql/opaque

Hi There,
[Using Java 1.4.2, BEA WebLogic 8.1, Oracle 9i Db]
We're having a bit of trouble with the above error.
In our java code, we are referencing xdb.jar and odbc14.jar but when we try to create an XMLTYPE object from an OPAQUE object we receive the NoClassDefFound error.
Anyone with any ideas on how to get around this please?
Many thanks,
Neil

Hi,
I had the same problem...
Put the xsu12_817.jar or xsu12_816.jar (depends on RDBMS version) in your CLASSPATH instead of xsu12.jar. (you can find xsu12_817.jar and xsu12_816.jar files in Oracle XDK).
It should work.
Regards
Sash

Error handling with example

Hi,
Can any one explain please
1.Why we need to create XSD,
2.What is the use of dehydration,
3.Types in XML
Please explain any error handling with example.

Hi',
1.Why we need to create XSD,
This is used as the input/output for the webservice/BPEL
2.What is the use of dehydration,
This is used to save the state of the composite/BPEL/Mediator in the database
3.Types in XML
complex, simple
Error handing in file
http://yatanveersingh.blogspot.com/2011/09/fault-handling-in-file-adapter-for-csv.html
-Yatan

"Exception in thread "main" java.lang.NoClassDefFound Error" in XP

I was creating programs just fine for awhile. Then, for some unknown reason, I start getting the runtime error message, "Exception in thread "main" java.lang.NoClassDefFound Error." I set my PATH in the following manner:
Start | Control Panel | Performance and Maintenance | System | Advanced | Environment Variables | Use Variables for Owner | PATH | Edit | C:\j2sdk1.4.2_04;C:\j2sdk1.4.2_04\bin;C:\j2sdk1.4.2_04\jre\bin | Ok | Ok | Ok
I then closed the dialog boxes and restarted my computer. I then tried to run a program that ran before, only to get the same runtime error! Can someone please help me???

NoClassDefFoundError happens because the JVM cannot find some class from your program, not because the OS cannot find your JVM (PATH regulates the latter, but not the former). JVM looks up classes in directories (or JAR files) specified through the -classpath option, like "java -classpath c:\myclasses MyMainClass". Read the online doc for the "java" launcher for more info.

Error:"exception in thread main:java.lang.noclassdeffound error.

Hi,
I am new to this java tech and programming. I just started learning and installed j2sdk1.4.0_03. I wrote a small hello world program and compiled it without any errors. When I execute the same using java hello command, I am getting an error like this: exception in thread "main" java.lang.noclassdeffound error. I am not able to resolve this issue. Please let me know the sol.
thanks
venkatraman

send the program u have typedUmm... Why?
Anyway @NovaKane: Welcome. Together with seifist and sunny we have at
least three new posters who show enough intelligence to find chuck's
solution (or one of the many hundreds of others like it) and the politeness
to thank him for it. What's the forum coming to?
If you need it there is a description of the classpath here:
http://java.sun.com/j2se/1.5.0/docs/tooldocs/windows/classpath.html
Again, welcome. And thanks for raising the intelligence level (and politeness
quotient) of the fora.

Java.lang.NoClassDefFound Error:msgsend

Hi,
I am trying to run my first Java Mail program, sending mail.
I had compiled the source - no Errors.
Now, when i try to execute it says
Exception in thread 'main' java.lang.NoClassDefFound Error:
I have download the JavaMail and JAF and has put the files under proper dir and verified the class variable. I am using Jdk1.3.

The reason of this run time error is : Java is not able to locate main method of specified class File. or class file itself is not locatable.
Check :
1. Either u are not in same folder where ur class file is.
2. or If u are running from some other directory, ur class file path is not in CLASSPATH.
3.or There will be some mistake in definition of main method.
Bye,
Shaan

Another NoClassDefFound Error. Nothing worked!

Hi. I'm a newbie. I've gone thru the forums but cant find anything to overcome this error msg.I tried the divelog tutorial but when i tried to run using the command line
C:\divelog.java -classpath C:\ divelog.DiveLog
the following error occured:
Error occured during initialization of VM
java/lang/NoClassDefFound Error: java/lang/object
I have J2RE 1.4.1_03 and JDK1.3.1_07 running on Win XP. My env variables are pointed to the J2RE location. Is there a compatibility problem involved?
Please help me to get rid of the error.
Thanks in advance.
Regards,
azareen

I had this problem after installing 1.4.2_01 on Linux under slackware9.1.
I found the resolution by running 'java -verbose' as root and as a user and comparing the output, as java ran fine for root.
Turns out that for the user 'java -version' stoipped after loading a couple of jars, and as root it didn't.
These jars in the JAVA_HOME/jre/lib directory only had root read/write permissions. After changing these permissions to all read and root write it worked fine for the user (so far)
Maybe you could look into something similar if you are not the admin on the Windows environment you're working on.
John

App world is showing this error "Uncaught exception: java.lang.NoClassDefFound Error"

Few days back I received some App world updates through wireless network. After installing those updates and restarting mobile when I clicked on App world icon following error is being displayed "Uncaught exception: java.lang.NoClassDefFound Error". In fact I can't enter into appworld.
Please suggest remedy
Regards,
Hitendra SIngh

Hello hitmech07,
Go to www.blackberry.com/appworld on your BlackBerry smartphone browser and attempt to reinstall the appliction.
Cheers,
-FB
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.
Click "Accept as a Solution" for posts that have solved your issue(s)!

Epa2sda java.lang.NoClassDefFound error..?

hi,
<b>I am using nwds 7.0.0 and ep 7 and j2sdk1.4.2_07</b>
I have set all the class path variable as per the blog -
https://service.sap.com/sap/support/notes/696084.
but when i am writing the command to convert epa file to sda-
"epa2sda ab.epa abc.sda"
it gives <b>Exception in thread "main"java.lang.NoClassDefFound error:</b> org/apache/tools/ant/main.
what should i do to convert the epa file into sda file.

hi Harini,
my ndwd version is "7.0.0"
This is the "sapmake.bat" file which i have been using.(giving error)
<------->
echo off
setlocal
if "%JAVA_HOME%" == "" goto nojavahome
if "%SAPIDE_HOME%" == "" goto nosapidehome
goto start
:nojavahome
echo JAVA_HOME environment variable is not set
goto end
:nosapidehome
echo SAPIDE_HOME environment variable is not set
goto end
:start
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\org.apache.ant_1.5.3\ant.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\org.apache.ant_1.5.3\optional.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\com.tssap.sap.libs.xmltoolkit\lib\sapxmltoolkit.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\com.tssap.sap.libs.logging\lib\logging.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\com.sap.ide.eclipse.jarsap\lib\SLUtil.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\com.sap.ide.eclipse.jarsap\lib\SDMutil.jar;%ANTCLASSPATH%
set ANTCLASSPATH=%SAPIDE_HOME%\IDE\IDE70\eclipse\plugins\com.sap.ide.eclipse.jarsap\lib\jar4sap.jar;%ANTCLASSPATH%
if exist "%JAVA_HOME%\lib\tools.jar" set ANTCLASSPATH=%JAVA_HOME%\lib\tools.jar;%ANTCLASSPATH%
%JAVA_HOME%\bin\java.exe -classpath "%ANTCLASSPATH%" org.apache.tools.ant.Main -Dsapmake.home="%SAPIDE_HOME%/sapmake_util" -Dbasedir="." -buildfile "%SAPIDE_HOME%/sapmake_util/build.xml" %1 %2 %3 %4 %5 %6 %7 %8 %9
:end
set ANTCLASSPATH=
<----
>

Could not find the main class. & java.lang.NoClassDefFound error:

sir / madam
I am facing problems with j2ksdk1.4.0 beta instalation on my windows 2000 advance server.
while installing pops up a message saying could not find the main class.
while using java or javac it says
Exception in thread main
java.lang.NoClassDefFound error:
com/sun/tools/javac/main
even when double clicking java plugin from the control panel
I get the Java virtual machine launcher saying could not find the main class.
I don't have any other java sdk installed.
And i have my environment variables (classpath, path and java_home) set correctly.
this same j2sdk1.4.0 version is installed in the windows 98 system and it's working fine.
Kindly do help me to solve this problem.
eagerly awaiting for your response.
Thanking you
Sajeev Nair
[email protected]

you must check with the classpath
please see that you have not repeated %classpath%
at the end of the class path like you do in win98.
similiarly with %path%
in win2000 it is automatically taken care off.

Error while building examples Java EE

Hi
When trying to build an example project (included with the Java EE tutorial http://java.sun.com/javaee/5/docs/tutorial/doc/) with the use of Netbeans I get the following error with e.g. the coffee example
error: http://127.0.0.1:8080/jaxws-coffee-supplier/SupplierService/__container$publishing$subctx/WEB-INF/wsdl/SupplierService_schema1.xsd
unknown location
I carefully followed the instructions as mentioned in the tutorial; What am I doing wrong? Do I need to save the examples folder in a specific place on my hard disk?
Thanks in advance!

Hi,
This forum is exclusively for the Sun Java Studio Creator related discussions.
Please post your question at: http://forum.java.sun.com/forum.jspa?forumID=38
Thanks,
Creator Team.

Error is in example "How to Create Online and Offline Forms in Web Dynpro"

Hi,
I am developing " How to Create Online and Offline Forms in Web Dynpro " in nwds 7.0. This is standard example which is available at sdn. but when i run it gives me error like "
Failed to process request. Please contact your system administrator.
[Hide]
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
   java.lang.NullPointerException
    at com.travelrequestapp.TravelRequestComView.wdDoInit(TravelRequestComView.java:97)
    at com.travelrequestapp.wdp.InternalTravelRequestComView.wdDoInit(InternalTravelRequestComView.java:133)
    at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)
    at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
    at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:445)
    ... 34 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type HTML Client
User agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
Version null
DOM version null
Client Type msie6
Client Type Profile ie6
ActiveX enabled
Cookies enabled
Frames enabled
Java Applets enabled
JavaScript enabled
Tables enabled
VB Script enabled
Server
Web Dynpro Runtime Vendor: SAP, build ID: 7.0009.20060804145649.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:41:58[UTC], changelist=413534, host=pwdfm101), build date: Thu Feb 15 10:23:57 IST 2007
J2EE Engine 7.00 patchlevel
Java VM Java HotSpot(TM) Server VM, version:1.4.2_13-b06, vendor: Sun Microsystems Inc.
Operating system Windows 2003, version: 5.2, architecture: x86
Session & Other
Session Locale en_US
Time of Failure Mon Oct 29 12:13:24 IST 2007 (Java Time: 1193640204484)
Web Dynpro Code Generation Infos
local/TravelRequest
SapDictionaryGenerationCore 7.0006.20051128142640.0000 (release=645_VAL_REL, buildtime=2006-01-14:14:59:42[UTC], changelist=378068, host=PWDFM101.wdf.sap.corp)
SapDictionaryGenerationTemplates (unknown)
SapGenerationFrameworkCore 7.0006.20050713144242.0000 (release=645_VAL_REL, buildtime=2006-01-14:14:48:59[UTC], changelist=357697, host=PWDFM101.wdf.sap.corp)
SapIdeWebDynproCheckLayer 7.0006.20051128151834.0000 (release=645_VAL_REL, buildtime=2006-01-14:15:05:10[UTC], changelist=378108, host=PWDFM101.wdf.sap.corp)
SapMetamodelCommon 7.0006.20050929162929.0000 (release=645_VAL_REL, buildtime=2006-01-14:14:49:45[UTC], changelist=369752, host=PWDFM101.wdf.sap.corp)
SapMetamodelCore 7.0006.20050929162929.0000 (release=645_VAL_REL, buildtime=2006-01-14:14:49:38[UTC], changelist=369752, host=PWDFM101.wdf.sap.corp)
SapMetamodelDictionary 7.0006.20051128142655.0000 (release=645_VAL_REL, buildtime=2006-01-14:14:57:39[UTC], changelist=378069, host=PWDFM101.wdf.sap.corp)
SapMetamodelWebDynpro 7.0006.20051128151854.0000 (release=645_VAL_REL, buildtime=2006-01-14:15:02:09[UTC], changelist=378109, host=PWDFM101.wdf.sap.corp)
SapWebDynproGenerationCTemplates 7.0006.20060111154644.0000 (release=645_VAL_REL, buildtime=2006-01-14:15:18:33[UTC], changelist=384368, host=pwdfm101)
SapWebDynproGenerationCore 7.0006.20051128151834.0000 (release=645_VAL_REL, buildtime=2006-01-14:15:05:21[UTC], changelist=378108, host=PWDFM101.wdf.sap.corp)
SapWebDynproGenerationTemplates 7.0006.20060111154644.0000 (release=645_VAL_REL, buildtime=2006-01-14:15:18:33[UTC], changelist=384368, host=pwdfm101)
sap.com/tcwddispwda
No information available null
sap.com/tcwdcorecomp
No information available null
Detailed Error Information
Detailed Exception Chain
java.lang.NullPointerException
     at com.travelrequestapp.TravelRequestComView.wdDoInit(TravelRequestComView.java:97)
     at com.travelrequestapp.wdp.InternalTravelRequestComView.wdDoInit(InternalTravelRequestComView.java:133)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
     at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:445)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:709)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:579)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.makeVisible(ViewManager.java:793)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.performNavigation(ViewManager.java:296)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:767)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:873)
     at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doNavigation(WindowPhaseModel.java:498)
     at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:144)
     at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)
     at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:299)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:711)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:665)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:232)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
So please help me to correct this error .....
Help will be rewarded.
Regards,
Gurprit Bhatia

Hi Gurprit,
A null value is being passed at runtime. Make sure that you enter values when filling in the form.
Also check for the cardinality of the nodes being used. You can also initiliaze your value attributes as follows:
In wdDoInit() method:
wdContext.currentNodeAElement.setValueA("");
Context is as follows:
RootNode
|____NodeA
        |_____ValueA
Hope it helps.

Error starting Workshop example server

Hi,
I am currently experiencing a problem starting the WL 7.0 example server for the
Workshop examples. This actually come with the installation of WL Platform 7.0.
I got "Corrupt Transaction @ 254177" at the DOS prompt and in the enclosed wl-domain.log
file it mentioned that it's unable to create socket for the port. I used netstat
and check that there's no conflict.
I was able to start it up many times until I started to follow the WLW tutorial
and added new project into the example domain. But recently I can no longer be
able to start the server again. I can start other servers no problem, but only
the sample server.
It sound strange that it works before but now it doesn't.
Can anyone help?
Thanks in advance,
Alex Ng
[wl-domain.log]

Well, I tested it
java -version and it shows :
1.7.0_25
Java HotSpot 64 bit Server VM
--> So I guess the problem is I don't seem to have the jrockit.
I donwloaded it (Rel 28.7) and installed it. During installation it says "for JDK 1.6.0_45"
Anyway. I let it install anyway and I modified the PATH to point to the Jrockit bin directory. Then run java -version and it now shows JDK 1.6.0_45 and jvm as rockit
Now I tried to start the weblogic server and I get the same error. it still uses the JDK 1.7
So.. again.. is this supported with JDK 7 ?
How can I fix it now that I installed everything using the JDK 7?
Thanks

NoClassDefFound error when using custom Java package in scripting QPAC

Hi,
I compiled a little Java-package (.jar), which contains a class that uses
com.adobe.workflow.datatype.form.FormDataTypeInstanceImpl.
I put my library in the lib folder of JBoss (...\server\all\lib).
Then I'm was trying to invoke my custom class in the scripting QPAC. But I'm constantly getting the error message
NoClassDefFound com\adobe\workflow\datatype\form\FormDataTypeInstanceImpl. I already put
adobe-wkf.jar (and various others) in the lib folder of JBoss. Without ever succeeding. Unfortunately.
I'm going mad about this.
Is there a way to address a custom package in the scripting QPAC, which uses
FormDataTypeInstanceImpl?
Steve

Removing the LiceCycle jars from the lib folder did not work. I still get the same error message.
What I wanted to do is provide some basic utilities, without having to spend a lot of time designing QPAC user interfaces.
My utility class contains methods like this one:
@param
pFormData
@return
@throws
ParserConfigurationException
@throws
SAXException
@throws
IOException
public static
org.w3c.dom.Document formToXml
FormDataTypeInstanceImpl pFormData
throws
ParserConfigurationException, SAXException, IOException
byte
data = pFormData.getXFAData
InputStream objXMLInputStream =
new
ByteArrayInputStream
data
// create new Document object
DocumentBuilderFactory objFactory = DocumentBuilderFactory.newInstance
DocumentBuilder objBuilder = objFactory.newDocumentBuilder
org.w3c.dom.Document objDocument = objBuilder.parse
objXMLInputStream
return
objDocument;
Even without ever invoking the aforementioned method, I get the error
NoClassDefFound: FormDataTypeInstanceImpl. Which is pretty weird.
Do I have to write my own classloader?
Steve

NoClassDefFound Error in Scho example

Similar Messages

Maybe you are looking for