NoClassDefFoundError , I'm new
I compiled my first .java file and I made a .class file.....but when i try to run it from the prompt i get this NoClassDefFoundError.
I saw in the FAQ that I should set CLASSPATH= , then try again, however I get the same problem.
Anyone know what I should do?
Change the cmd/command window to the directory that contains the class file.
Use this command to run it. Be sure to include the period and surrounding spaces.
java -classpath . name_of_the_class
If that works, then read about the classpath here
http://java.sun.com/j2se/1.4.2/docs/tooldocs/tools.html
The Installation Instructions for the Java package that you downloaded has detailled instructions on setting the path in paragraph #5. The same instructions apply to setting the classpath.
Similar Messages
-
NoClassDefFound vs ClassNotFound
It's unclear to me what the difference is between
java.lang.NoClassDefFoundErrorand
java.lang.ClassNotFoundExceptionFrom the API, the error is described..
thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
And the exception is described..
thrown when an application tries to load in a class through its string name ... but no definition for the class with the specified name could be found.
From these two definitions I only infer that the exception is thrown only when the application is starting and a class can not be found on the class path, and the error is thrown after the app has started and attempts to initialize an object using "new". But in my experience I have seen the error thrown as the app is starting.
I'd like to learn more about the difference between these two. Specifically, if I make a change in my application or settings after seeing one error thrown and then I see the other error being thrown, what can I learn from that.. How do I interpret the change in settings to the differences in the errors...
I appreciate any feedback... Thank you.Thank you both for your responses. I'm still a little confused though. I know that I have seen the ClassNotFoundException thrown in situations that did not involve calling the static forName() method in Class. I did think that the implementation of a static method might be the difference but as warnerja has mentioned, and as my example shows, that did not effect the outcome.
Working with the simple program below -
public class Hello
public Hello()
System.out.println("Hello World");
// When "Greetings" is located off of the classpath
// .. the line below generates "NoClassDefFoundError"
Greetings greet = new Greetings();
// Similarly when "Greetings" is located off of the classpath
// .. the line below generates the same error - even when the
// ... previous line using the constructor is commented out.
Greetings.sayHi();
public static void main(String[] args)
Hello hi = new Hello();
}1 - Try to instantiate using "new" w/o Greetings.class
Result - NoClassDefFoundError: Greetings
2 - Try to run static method in Greetings.class in Hello w/o Greetings
Result - Same. NoClassDefFoundError...
If I knew how to generate a ClassNotFoundException in this program..that might help me learn the difference between the two ...Can anyone tell me how I could change the code to generate a ClassNotFoundException? -
New JScrollPane() gives NoClassDefFoundError
Hello,
I get an error when I try to create a JScrollPane-object.
My OS is Debian (Linux) and I get this error with:
j2re1.4.1_04-linux-i586.bin
j2re1.4.2_01-linux-i586.bin
j2re1.4.2_02-linux-i586.bin
j2re1.4.2_03-linux-i586.bin
j2re1.4.2_04-linux-i586.bin
j2sdk1.4.2_04-linux-i586.bin
j2re1.4.2_05-linux-i586.bin
Hope that someone can help me ...
Thanks,
Pieter
Testcode
# vim test.java
1 import javax.swing.JScrollPane;
2
3 public class test {
4 public static void main (String[] args) {
5 new JScrollPane();
6 }
7 }
# /opt/j2re1.4.2_05/bin/java test
Exception in thread "main" java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)
at java.awt.Font.initializeFont(Unknown Source)
at java.awt.Font.<init>(Unknown Source)
at javax.swing.plaf.metal.DefaultMetalTheme$FontDelegate.getFont(Unknown Source)
at javax.swing.plaf.metal.DefaultMetalTheme.getFont(Unknown Source)
at javax.swing.plaf.metal.DefaultMetalTheme.getControlTextFont(Unknown Source)
at javax.swing.plaf.metal.MetalLookAndFeel$FontActiveValue.createValue(Unknown Source)
at javax.swing.UIDefaults.getFromHashtable(Unknown Source)
at javax.swing.UIDefaults.get(Unknown Source)
at javax.swing.MultiUIDefaults.get(Unknown Source)
at javax.swing.UIDefaults.getFont(Unknown Source)
at javax.swing.UIManager.getFont(Unknown Source)
at javax.swing.LookAndFeel.installColorsAndFont(Unknown Source)
at javax.swing.plaf.basic.BasicButtonUI.installDefaults(Unknown Source)
at javax.swing.plaf.metal.MetalButtonUI.installDefaults(Unknown Source)
at javax.swing.plaf.basic.BasicButtonUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.AbstractButton.setUI(Unknown Source)
at javax.swing.JButton.updateUI(Unknown Source)
at javax.swing.AbstractButton.init(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.plaf.basic.BasicArrowButton.<init>(Unknown Source)
at javax.swing.plaf.basic.BasicArrowButton.<init>(Unknown Source)
at javax.swing.plaf.metal.MetalScrollButton.<init>(Unknown Source)
at javax.swing.plaf.metal.MetalScrollBarUI.createIncreaseButton(Unknown Source)
at javax.swing.plaf.basic.BasicScrollBarUI.installDefaults(Unknown Source)
at javax.swing.plaf.metal.MetalScrollBarUI.installDefaults(Unknown Source)
at javax.swing.plaf.basic.BasicScrollBarUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JScrollBar.setUI(Unknown Source)
at javax.swing.JScrollBar.updateUI(Unknown Source)
at javax.swing.JScrollBar.<init>(Unknown Source)
at javax.swing.JScrollBar.<init>(Unknown Source)
at javax.swing.JScrollPane$ScrollBar.<init>(Unknown Source)
at javax.swing.JScrollPane.createVerticalScrollBar(Unknown Source)
at javax.swing.JScrollPane.<init>(Unknown Source)
at javax.swing.JScrollPane.<init>(Unknown Source)
at test.main(test.java:5)Is the X window system running and the DISPLAY environment variable set?
Alternatively you could see if setting the system property java.awt.headless to true is enough for you, it lets you do some graphical things that don't really need X but will result in java.awt.HeadlessException if X is needed:
java -Djava.awt.headless=true test -
New to java - NoClassDefFoundError
Hi,
I get the message below when i try to my programe. It compiles alright. The programes i run before are failing to run too. What's going on???
"Error occured during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object"
public class orop
public static void main(String[] args)
double array[]={1,2,3,4,5,6,7,8,9,10};
int sum = 0;
for ( int loop_index = 0; loop_index < array.length; loop_index++){
sum += array[loop_index];
if (sum > 12) break;
System.out.println("Looping.....");
System.out.println( "the sum exceeded the max value");
}hey sudha, I thisnk changing the jdk is go too far.
He can also change his computer.When do you want him to change the JDK? After 2 or 3 days or a week (without getting his problem solved!!!)? Changing JDK is a matter of 15 to 20 min.
And most importantly there will not be any harm in doing so.
If he has enough time to do an R&D on his JVM, well, he is at his liberty. I don't comment about changing the computer. Do you want him to? -
Error while creating a new connection in ODSM for OVD
Hi all,
I am getting the following error while creating a new connection in ODSM for OVD.
Error log:
[2012-07-10T14:50:30.005+05:30] [wls_ods1] [ERROR] [] [oracle.adfinternal.view.faces.config.rich.RegistrationConfigurator] [tid: [ACTIVE].ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: 0000JXkC9dU3FClqwsJb6G1FyhO000003D,0] [APP: odsm#11.1.1.2.0] Server Exception during PPR, #7[[
javax.servlet.ServletException: Could not initialize class com.octetstring.vde.admin.services.client.VDEAdminServiceSoapBindingStub
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:277)
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:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.help.web.rich.OHWFilter.doFilter(Unknown Source)
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.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$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by:
=======
java.lang.NoClassDefFoundError: Could not initialize class
com.octetstring.vde.admin.services.client.VDEAdminServiceSoapBindingStub
at com.octetstring.vde.admin.services.client.ServerMgrServiceLocator.getVDEAdminService(ServerMgrServiceLocator.java:58)
at oracle.ldap.odsm.model.ovd.APServerProxy.connect(APServerProxy.java:248)
at oracle.ldap.odsm.model.ovd.APServerProxy.authenticateAs(APServerProxy.java:684)
at oracle.ldap.odsm.model.ovd.APServerProxy.authenticate(APServerProxy.java:286)
at oracle.ldap.odsm.model.ovd.APServerProxy.init(APServerProxy.java:216)
at oracle.ldap.odsm.model.ovd.APServerProxy.<init>(APServerProxy.java:198)
at oracle.ldap.odsm.model.ovd.OVDRoot.connectOVD(OVDRoot.java:185)
at oracle.ldap.odsm.ui.common.Connection.connect(Connection.java:120)
at oracle.ldap.odsm.ui.common.Visit.createConnection(Visit.java:663)
at oracle.ldap.odsm.ui.common.Login.saveChanges(Login.java:215)
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(Unknown Source)
at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)
at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:53)
at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1245)
at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:183)
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)
... 28 more
How to resolve this issue.Pls suggest me.
Regards,
-Deena.Hi Deena,
This error:
"[2012-07-10T14:50:30.005+05:30] [wls_ods1] [ERROR] [] [oracle.adfinternal.view.faces.config.rich.RegistrationConfigurator] [tid: [ACTIVE].ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: 0000JXkC9dU3FClqwsJb6G1FyhO000003D,0] [APP: odsm#11.1.1.2.0] Server Exception during PPR, #7[[
javax.servlet.ServletException: Could not initialize class com.octetstring.vde.admin.services.client.VDEAdminServiceSoapBindingStub"
is known issue
Go to metalink, article: Unable To Connect To OVD 11g Webinterface Using ODSM. [ID 1282757.1]
You need to apply that patch.
I hope this helps,
Thiago Leoncio. -
NoClassDefFoundError: com/sap/sql/log/OpenSQLException
I have developed a Java project. It consists of 2 SQLJ files and then a Java class. When I try to execute the Java program, I get a Java error:
java.lang.NoClassDefFoundError: com/sap/sql/log/OpenSQLException
at com.mbb.crrs.business.report.dao.ReportDAO.<init>(ReportDAO.sqlj:23)
at com.mbb.crrs.business.report.dao.Test.main(Test.java:24)
Exception in thread "main"
I notice a similar problem on message: Re: Which jar to include com.sap.sql.log.OpenSQLException
Is that something that I need to maintain for it to work? Thank you.Hi,
the problem one year ago was that the SQLException class was not available through remote access. I don't know if that might have been changed meanwhile in the latest release.
I implemented a simple work around: I caught every SQL-exception in the method where it was thrown, wrapped the exception message and any nested exception in a self written exception and threw this new exception. That worked fine.
Regards, Astrid -
SAP Java Connectivity Builder -NoClassDefFoundError com.sap.aii...Reference
Hi there,
I'm trying to generate Java Proxies for SAPJCO using the SAP Java Connectivity Builder (JCB). I got it from the NetWeaver 6.20 Release. The tool installs and runs properly but after putting in the connection properties and klicking "next", the application hangs. When activating System output, I get the error shown below.
I already tried to put all jar files contained in the C:\JBuilder5\lib\ext directiry into the classpath (but none of them contains the class mentioned).
Which is the right (standalone) tool for generating Java Proxies for a standalone Java application?
If it is JCB, is there a bug on the version I use (NetWeaver Release 6.20)?
Any help would be apreciated.
C:\JBuilder5>java -Dlog.handler.FileLog=FileHandler,log.txt -Dlog.logger.com=ALL,FileLog -cp lib/ext/aii_basis.jar;lib/e
xt/aii_ifr_core.jar;lib/ext/aii_ifr_jbtool.jar;lib/ext/aii_lcraccess.jar;lib/ext/aii_msg_runtime.jar;lib/ext/aii_proxy_g
en.jar;lib/ext/aii_proxy_rt.jar;lib/ext/aii_util.jar;lib/ext/aii_util_log.jar;lib/ext/lcrclient.jar;lib/ext/logging.jar;
lib/ext/SapIdeHelp.jar;lib/ext/SapIdeJBUtil.jar;lib/ext/SapIdeJspInsight.jar;lib/ext/SapIdeTaglibReflection11.jar;lib/ex
t/SapIdeTracing.jar;lib/ext/SapIdeUtil.jar;lib/ext/SAPJ2EEEngineJBuilderPlugin.jar;lib/ext/sapjco.jar;lib/ext/SAPmdi.jar
;lib/ext/servlet.jar;lib/ext/tc_sec_core.jar com.sap.aii.ifr.tool.jbuilder.JBuilderTool
#0 12:35:37 [main] DEBUG com.sap.aii.util.misc.api.AIIProperties: Initial AIIProperties
com.sap.aii.client = true
#1 12:35:37 [main] FINE com.sap.aii.util.misc.api.AIIProperties: changed Property "com.sap.aii.standalone" from "null" t
o "true"
#2 12:35:37 [main] FINE com.sap.aii.util.misc.api.AIIProperties: changed Property "com.sap.aii.xml.parserFactory" from "
null" to "com.inqmy.lib.jaxp.SAXParserFactoryImpl"
#3 12:35:37 [main] FINE com.sap.aii.util.misc.api.AIIProperties: changed Property "com.sap.aii.xml.transformerFactory" f
rom "null" to "com.inqmy.lib.jaxp.TransformerFactoryImpl"
#4 12:35:46 [AWT-EventQueue-0] DEBUG com.sap.aii.ifr.upload.client.SAPNavigationPane: New file is C:\Documents and Setti
ngs\kalkoo1\Desktop\t.jar
#5 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for Client : 010
#6 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for Logon Name : kalkoo1
#7 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for Password : #########
#8 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for Language : EN
#9 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for Host name: bgstsapedai01.s
t.behr.de
#10 12:36:08 [AWT-EventQueue-0] FINER com.sap.aii.ifr.upload.client.R3LogonScreen: setting for System number : 20
#11 12:36:08 [AWT-EventQueue-0] INFO com.sap.aii.ifr.upload.client.R3LogonScreen: trying to establish connection
#12 12:36:08 [AWT-EventQueue-0] FINEST com.sap.aii.ifr.util.IdentityCheck: Looking up identity
#13 12:36:08 [AWT-EventQueue-0] DEBUG com.sap.aii.ifr.util.IdentityCheck: Results of identity check: isIFRServer: false;
isIFRRMIClient: false; isStandaloneIFR: true
#14 12:36:08 [AWT-EventQueue-0] FINEST com.sap.aii.ifr.util.IdentityCheck: Checking IdentityCheck.isIFRServer. Result: f
alse
#15 12:36:08 [AWT-EventQueue-0] INFO com.sap.aii.ifr.upload.sap.SAPConnection: connecting to system 20 on bgstsapedai01.
st.behr.de via JCo
#16 12:36:09 [AWT-EventQueue-0] DEBUG com.sap.aii.ifr.upload.sap.SAPUploadSource: init MDI to System bgstsapedai01.st.be
hr.de (system=20, client=010) (BasisRelease: 620)
#17 12:36:09 [AWT-EventQueue-0] DEBUG com.sap.aii.ifr.upload.UploadBuffer: new UploadBuffer
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: com/sap/aii/ifr/client/editor/Reference
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getDeclaredMethod(Unknown Source)
at java.awt.Component.isCoalesceEventsOverriden(Unknown Source)
at java.awt.Component.access$100(Unknown Source)
at java.awt.Component$2.run(Unknown Source)
at java.awt.Component$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Component.checkCoalescing(Unknown Source)
at java.awt.Component.<init>(Unknown Source)
at java.awt.Container.<init>(Unknown Source)
at javax.swing.JComponent.<init>(Unknown Source)
at javax.swing.JTree.<init>(Unknown Source)
at javax.swing.JTree.<init>(Unknown Source)
at com.sap.aii.ifr.navigation.IFRJTree.<init>(IFRJTree.java:84)
at com.sap.aii.ifr.navigation.IFRTreePane.buildPane(IFRTreePane.java:123)
at com.sap.aii.ifr.navigation.IFRTreePane.<init>(IFRTreePane.java:33)
at com.sap.aii.ifr.upload.client.SAPNavigationPane.<init>(SAPNavigationPane.java:43)
at com.sap.aii.ifr.upload.client.SAPBrowser.setIsConnected(SAPBrowser.java:252)
at com.sap.aii.ifr.upload.client.SAPBrowser$ConnectAction.actionPerformed(SAPBrowser.java:594)
at com.sap.aii.ifr.upload.client.SAPBrowser$NextAction.actionPerformed(SAPBrowser.java:536)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)Hi,
>> Error :- java.lang.NoClassDefFoundError: com/sap/aii/security/proxy/KeystoreHelp
1) Can you check the class path you have mentioned is correctly
2) Setting of the Java in your system ( Desk top /Lap top ) check the Proxy settings
3) Re start the J2EE engine in the server
Regards
Agasthuri Doss -
NoClassDefFoundError at runtime
Hi, everybody:
I am a new commer to Java programming. I recently downloaded and installed the Java JDK 1.3.1 version on my Windows 98 and Windows 2000 computers without any installation problem. I wrote a very simple program and compiled from command prompt without any error. But when I ran the compiled program from command prompt, I got the following error in both Windows 98 and Windows 2000 computers:
Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorldApp
Before I compiled and ran the program, I had checked the PATH and CLASSPATH system variables in the startup AUTOECEC.BAT just to make sure the system enviroment setting is correct. The program I wrote was simple enough just to include a class and main declaration that will display "Hello" on the command prompt.
Can somebody offer any solution for this? please respond your helpful advice to
[email protected]
6-10-2002
Thanks.hi,
make sure that classpath is set to your current working directory like the following :
set CLASSPATH=.;%CLASSPATH%
note : there is a dot after = sign and before (semicolon) -
How can I resolve java.lang.NoClassDefFoundError?
I am new to Java and have installed it on my Linux Ubuntu 9.04 workstation in order to learn Java. Basic Java programs work, but I am having trouble connecting to a MySQL database. I installed these packages using Synaptic Package Manager, which I thought should cover everything I need for database connectivity: 1.gsfonts-x11; 2.java-common; 3.odbcinst1debian1; 4.sun-java6-bin; 5.sun-java6-jdk; 6.sun-java6-jre; 7.unixodbc.
After these packages were installed, I was not sure if I needed to do this, but I downloaded the MySQL connector from http://www.mysql.com/products/connector/ and installed in a directory called /home/mark/mysql/.
I edited /etc/environment" and added a CLASSPATH to where I installed the connector:
{code}CLASSPATH="/home/mark/mysql/mysql-connector-java-5.1.7/mysql-connector-java-5.1.7-bin.jar"
{code}
I created a very simple Java program based on one I found on the internet. I named the program Jdbctest to test the connection,
{code}import java.sql.*;
public class Jdbctest {
public static void main(String[] args){
System.out.println("running Jdbctest.java");
try {
Statement stmt;
//Register the JDBC driver for MySQL.
Class.forName("com.mysql.jdbc.Driver");
//Define URL of database server for database named mysql
// on the localhost with the default port number 3306.
String url = "jdbc:mysql://localhost:3306/mysql";
//Get a connection to the database for a
// user named root with password carrot.
// This user is the default administrator
// having full privileges to do anything.
Connection con = DriverManager.getConnection(url,"root", "carrot");
//Display URL and connection information
System.out.println("URL: " + url);
System.out.println("Connection: " + con);
//Get a Statement object
stmt = con.createStatement();
//Select from a table
stmt.executeQuery("SELECT host, user FROM mysql.user ");
con.close();
}catch( Exception e ) {
e.printStackTrace();
}//end catch
}//end main
}//end class Jdbctest{code}
but I get this error:
{code}Exception in thread "main" java.lang.NoClassDefFoundError: Jdbctest
Caused by: java.lang.ClassNotFoundException: Jdbctest
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: Jdbctest. Program will exit.{code}
I don't really understand what this error message is telling me. I've Googled for an explanation, and it seems to indicate that my CLASSPATH is wrong, but I'm not sure what it should be and how to fix it. Any assistance would be greatly appreciated.Your class JdcbTest isn't in that JAR, is it? So you need the CLASSPATH to also specify where that is. Typical CLASSPATHs start with a dot and then some jars.
-
I can't see my view in new application
Hi all!
I create new application with integration Repository Framework. And create new view wich consist tree of my repository. But I received this error:(does anybody know what's happens?)
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to create delegate for view com.sap.integration.components.Tree. (Hint: Is the corresponding DC deployed correctly? Does the DC contain the component?)
at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:110)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.<init>(DelegatingView.java:41)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.createUninitializedView(ViewManager.java:486)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:523)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:397)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:554)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:421)
at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)
at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)
at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:135)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:404)
at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:618)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
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)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:74)
... 33 more
Caused by: java.lang.NoClassDefFoundError: com/sapportals/wcm/repository/IResourceContext
at com.sap.integration.components.wdp.InternalTree.<init>(InternalTree.java:131)
... 38 moreHi
See this thread and get the solution
Re: Error : Failed to create delegate for view ???
Failed to create delegate for component
Re: runtime error: failed to create delegate view
Kind Regards
Mukesh -
Creating a new work item instance in a process using PAPI
I'm seeing that there are a lot of questions on this forum about using Oracle BPM 10g's Java API called PAPI.
I just uploaded a step by step document on how you could do this using JDeveloper 11. Here's the link to this document: http://www.4shared.com/file/126507332/e814a3a8/CallingPapi.html. The Oracle BPM project I used for this step-by-step document is also in this zip file. If you're curious, this also describes how to download, install and start JDeveloper 11.
This is not formal Oracle documentation, but I know from teaching our Oracle BPM Bootcamp class that getting PAPI to work is sometimes a challenge and thought this might help. I tried to write it with the "Java Newbie" in mind so do not panic if you aren't an expert in Java (I'm sure not ?:| ).
This is a simple example that uses most of the logic found in the PAPI documentation on http://download.oracle.com/docs/cd/E13154_01/bpm/docs65/papi/index.html?t=modules/papi/c_Head_PAPI.html in the "Writing Your First Java PAPI Program" section of this document.
The document provides a step-by-step description on how how to use PAPI to:
<li> interface to processes running on an Oracle BPM Enterprise Engine using the same logic that is in the Oracle BPM PAPI documentation
<li> interface to processes running on an Oracle BPM Studio Engine
<li> list processes currently running on the Engine using the same logic that is in the Oracle BPM PAPI documentation
<li> list the work item instances running on the Engine using the same logic that is in the Oracle BPM PAPI documentation
<li> create a new work item instance in a process and pass in input argument variables to the new instance as it is created.
Hope you find this useful,
DanHi
i have gone through your example. It gives good information how to connect to BPM engine through java papi client. I have followed exactly the same steps given in the PDF document. But it throws the exception on both java client side and BPM Suite.
Steps followed :
1. Import sampleproject.exp into Oracle BPM studio and start the BPM engine.
2. Imported the fuegopapi-client.jar and Write the JAVA PIPA client to connect Oracle BPM Engine.
complete example code:_
import fuego.papi.CommunicationException;
import fuego.papi.InstanceInfo;
import fuego.papi.ProcessService;
import fuego.papi.ProcessServiceSession;
import fuego.papi.OperationException;
import java.util.Properties;
public class ProcessAPIClient {
public static void main(String[] args) {
/////////////////// API Initialization ///////////////////
Properties configuration = new Properties();
configuration.setProperty(ProcessService.DIRECTORY_ID, "default");
configuration.setProperty(ProcessService.DIRECTORY_PROPERTIES_FILE, "directory.xml");
configuration.setProperty(ProcessService.PROJECT_PATH, "C:\\Oracle\\OracleBPMWorkspace\\SampleProject" );
configuration.setProperty(ProcessService.WORKING_FOLDER, "/tmp");
try {
ProcessService processService = ProcessService.create(configuration);
/////////////////// Establish a session ///////////////////
ProcessServiceSession session = processService.createSession("test", "test", null);
/////////////////// Operate with PAPI ///////////////////
for (String processId : session.processesGetIds()) {
System.out.println("\n Process: " + processId);
for (InstanceInfo instance : session.processGetInstances(processId)) {
System.out.println(" -> " + instance.getId());
/////////////////// Close the session ///////////////////
session.close();
/////////////////// Release API Resources ///////////////////
processService.close();
} catch (CommunicationException e) {
System.out.println("Could not connect to Directory Service");
e.printStackTrace();
} catch (OperationException e) {
System.out.println("Could not perform the requested operation");
e.printStackTrace();
It throws the following exception and output on java client._
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Could not enhance type with bytecode info: java.lang.NoSuchMethodError: org.apache.bcel.classfile.Method.getArgumentTypes()[Lorg/apache/bcel/generic/Type;
Creating ProcessService with id 'SampleProject'.
Local folder /tmp\system\Schema33871921573571055\catalogs found.
Loading catalogs from local folder: /tmp\system\Schema33871921573571055\catalogs
0 jars found locally.
[CatalogMgrCache] =======================
Registering CatalogMgr [SampleProject] ...CatalogManagerCache 23240993:
Managers:
Counters:
[CatalogMgrCache] =======================
CatalogMgr [SampleProject] REGISTERED!CatalogManagerCache 23240993:
Managers:
{SampleProject=fuego.util.LocalCatalogManager@40b187}
Counters:
ProcessService 'SampleProject' created successfully.
Process: /SampleProcess#Default-1.0
Unreachable Engine Tolerance (seconds):
by default: 0
to be used: 0
This papi client will not cache exceptions which imply that an engine could not be reached.
Exception in thread "main" java.lang.NoClassDefFoundError: javax/jms/MessageEOFException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at $Proxy24.<clinit>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at fuego.papi.impl.AbstractProcessControlHandler.newProxyInstance(AbstractProcessControlHandler.java:52)
at fuego.papi.impl.rmi.RMIProcessControlHandler.createProxy(RMIProcessControlHandler.java:47)
at fuego.papi.impl.rmi.RMIEngineAccessImpl.createProcessControl(RMIEngineAccessImpl.java:111)
at fuego.papi.impl.ProcessServiceImpl.createProcessControl(ProcessServiceImpl.java:1082)
at fuego.papi.impl.ProcessServiceSessionImpl$1.run(ProcessServiceSessionImpl.java:2698)
at fuego.papi.impl.ProcessServiceImpl.executeEngineOp(ProcessServiceImpl.java:1675)
at fuego.papi.impl.ProcessServiceSessionImpl.getProcessControl(ProcessServiceSessionImpl.java:2703)
at fuego.papi.impl.ProcessServiceSessionImpl.processGetInstances(ProcessServiceSessionImpl.java:2365)
at com.eds.comet.bpm.oracle.papi.client.ProcessAPIClient.main(ProcessAPIClient.java:30)
Caused by: java.lang.ClassNotFoundException: javax.jms.MessageEOFException
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 16 more
It throws the following exception and output on Oracle BPM Suite._
Client 'Id=test, Name=test, In=1, Session=564242434' was not found in lists ', PARTICIPANTS' while disconnecting it.
Please help me to resolve this. I noticed it is able to connect BPM engine and retrieve process list. But while getting instances, it throws the exceptions on both Java Client and BPM engine side.
Thanks and Regards
Mahesh -
Creating a new MdmMetadataProvider
Hi,
I created a MdmMetadataProvider using the following code
Class.forName("oracle.jdbc.driver.OracleDriver");
String url="jdbc:oracle:oci8:@(description="+
"(address=(host=hostname)(protocol=tcp)"+
"(port=1521))(connect_data=(sid=sidname)))";
oracle.jdbc.OracleConnection conn =(oracle.jdbc.OracleConnection) java.sql.DriverManager.getConnection(url, "username", "password");
//Creating a TransactionProvider
ExpressTransactionProvider tp = new ExpressTransactionProvider();
//creating a DataProvider
ExpressDataProvider dp = new ExpressDataProvider(conn,tp);
//Creating a Metadata Provider
MdmMetadataProvider mp = (MdmMetadataProvider)dp.getDefaultMetadataProvider();
The code compiles with no issues, but when i try to run the .class file, it throws a runtime exception
like
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/olapi/data/sou
rce/DataDescriptor at oracle.express.olapi.data.full.ExpressDataProvider.getDefaultMetadata
Provider(ExpressDataProvider.java:523)
at class_name.main(class_name.java:168)
In the javadoc there s no such class like DataDescriptor,
even i broke down the jar and looked n to all the classes and that particular class is missing
Even if i try to create a MdmMetadataProvider using the constructor as defined in the javadoc, the java file refuses to compile and throws an error like
symbol : constructor MdmMetadataProvider (oracle.olapi.data.source.DataProvide
r)
location: class oracle.express.mdm.MdmMetadataProvider
MdmMetadataProvider mp = new MdmMetadataProvider(dataProvider);
^
1 error
where dataProvider is ExpressDataProvider
can anyone help?Shobana,
To run the code, you have to include:
<owb home>\owb\bin\admin
<owb home>\owb\lib\int\owb0.jar
<owb home>\owb\lib\int\owb1.jar
<owb home>\owb\lib\int\owb2.jar
<owb home>\owb\lib\int\owb3.jar
<owb home>\owb\lib\int\owb4.jar
<owb home>\owb\lib\int\owb5.jar
<owb home>\owb\lib\int\owb6.jar
<owb home>\owb\lib\int\publicapi.jar
Run directory has to refer to:
<owb home>\owb\bin\admin
Hope this helps,
Mark. -
Servlet + Tomcat NoClassDefFoundError
Hi,
I am developing a servlet which takes data from Amazon's Web services (in XML format) and then outputs a RSS feed. I use xerces for parsing the XML and then use Rome to output the RSS feed. When I run the servlet then I get the following error.
However when I run the same code over the commandline, it runs fine, however running it as a servlet, it shows the NoClassDefFoundError . I am also sending the code , it contains the commented out System.out statements which I use when I am running it over the command line
Thanks
Gaurav
javax.servlet.ServletException: Invoker service() exception
at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:524)
at org.apache.catalina.servlets.InvokerServlet.doPost(InvokerServlet.java:216)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
root cause
java.lang.NoClassDefFoundError
at form_input.doPost(form_input.java:84)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:466)
at org.apache.catalina.servlets.InvokerServlet.doPost(InvokerServlet.java:216)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at filters.ExampleFilter.doFilter(ExampleFilter.java:149)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
The Code:
//JAXP 1.1
import org.w3c.dom.*;
import org.w3c.dom.Document;
import javax.xml.parsers.*;
import org.apache.xerces.dom.DocumentImpl;
import org.apache.xerces.dom.DOMImplementationImpl;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.net.*;
import java.util.Vector;
import org.apache.xerces.jaxp.*;
import org.apache.xerces.*;
import org.apache.xerces.dom.*;
import org.apache.xerces.parsers.*;
//import org.apache.xml.serialize.*;
import org.xml.sax.*;
import com.sun.syndication.feed.synd.*;
import com.sun.syndication.io.SyndFeedOutput;
import com.sun.syndication.io.FeedException;
import java.io.IOException;
import java.text.ParseException;
import java.io.FileWriter;
import java.io.Writer;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class form_input extends HttpServlet
private static final DateFormat DATE_PARSER = new SimpleDateFormat("yyyy-MM-dd");
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
doPost(request,response);
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
response.setContentType("text/xml");
PrintWriter out = response.getWriter();
URL data = new URL("http://xml.amazon.com/onca/xml3?t=myWebsite-20&dev-t=1RX5WFR818MJJAEN8A02&KeywordSearch=dogs&mode=books&type=lite&page=1&f=xml");
URLConnection connection = data.openConnection();
connection.setUseCaches(false);
Document doc= null;
NodeList DetailList = null;
NodeList DetailChildren = null;
Node Detail = null;
Node DetailChild = null;
Node ChildValue = null;
DOMParser dparsers = new DOMParser();
List entries = new ArrayList();
SyndFeed feed = new SyndFeedImpl();
SyndEntry entry;
SyndContent description;
SyndFeedOutput output = new SyndFeedOutput();
try
feed.setFeedType("rss_1.0");
feed.setTitle("Amazon search for dog");
feed.setLink("http://www.amazon.com");
feed.setDescription("Amazon search results for dogs");
dparsers.parse(new InputSource(connection.getInputStream()));
doc = dparsers.getDocument();
DetailList = doc.getElementsByTagName("Details");
for( int i=0; i<DetailList.getLength(); i++)
Detail = DetailList.item(i);
DetailChildren = Detail.getChildNodes();
entry = new SyndEntryImpl();
for( int j=0; j<DetailChildren.getLength(); j++)
//Iterate through each of the children and start filling out the RSS thingie
//Gotta extract Asin, ProductName, ReleaseDate, Manufacturer, Authors -> Author
DetailChild = DetailChildren.item(j);
if(DetailChild.getNodeName().equals("Asin"))
//if(DetailChild.hasChildNodes())
// System.out.println(DetailChild.getNodeName() + " has child nodes");
ChildValue = DetailChild.getFirstChild();
//System.out.println(DetailChild.getNodeName()+ " type = "+DetailChild.getNodeType()+" value="+ChildValue.getNodeValue());
entry.setLink("http://www.amazon.com/exec/obidos/ASIN/"+ChildValue.getNodeValue());
//System.out.println("Match found for Asin");
else if(DetailChild.getNodeName().equals("ProductName"))
ChildValue = DetailChild.getFirstChild();
//System.out.println(DetailChild.getNodeName()+ " type = "+DetailChild.getNodeType()+" value="+ChildValue.getNodeValue().length());
if(ChildValue.getNodeValue().length() > 100 )
entry.setTitle(ChildValue.getNodeValue().substring(0,100));
else
entry.setTitle(ChildValue.getNodeValue());
//System.out.println("Match found for ProductName");
else if(DetailChild.getNodeName().equals("ReleaseDate"))
ChildValue = DetailChild.getFirstChild();
//System.out.println(DetailChild.getNodeName()+ " type = "+DetailChild.getNodeType()+" value="+ChildValue.getNodeValue());
//System.out.println("ReleaseDate: "+DetailChild.getNodeValue());
//entry.setPublishedDate(DATE_PARSER.parse(DetailChild.getNodeValue()));
entry.setPublishedDate(DATE_PARSER.parse("2004-07-07"));
//System.out.println("Match found for ReleaseDate");
else if(DetailChild.getNodeName().equals("Manufacturer"))
ChildValue = DetailChild.getFirstChild();
//System.out.println(DetailChild.getNodeName()+ " type = "+DetailChild.getNodeType()+" value="+ChildValue.getNodeValue());
description = new SyndContentImpl();
description.setType("text/plain");
description.setValue("Initial release of Rome");
entry.setDescription(description);
entries.add(entry);
feed.setEntries(entries);
String fxml = output.outputString(feed);
out.println(fxml);
catch (ParseException ex) {
// IT CANNOT HAPPEN WITH THIS SAMPLE
ex.printStackTrace();
out.println("ERROR: "+ex.getMessage());
catch( SAXException se)
se.printStackTrace();
out.println("ERROR: "+se.getMessage());
catch (Exception ex) {
ex.printStackTrace();
out.println("ERROR: "+ex.getMessage());Hi,
I am building the servlet for now in
$TOMCAT_HOME/webapps/examples/WEB-INF/classes ,
however there is no 'lib' directory in
$TOMCAT_HOME/webapps/examples/WEB-INF . I created one
and put the jar files there, but still I get the same
error. Infact when I start the server, I do not see
the jar file in CLASSPATH
Thanks
GauravYou shouldn't be putting your app in the examples directory.
You should create a directory under TOMCAT_HOME/webapps for YOUR individual apps. Each one should have a WEB-INF directory under that, and /classes and /lib under that. Your web.xml belongs in the WEB-INF directory. Your .class files, and their package directories, belong under WEB-INF/classes. 3rd party JARs, like JDBC drivers, belong in WEB-INF/lib.
The problem is that you don't know how to deploy a Web app properly on Tomcat. -
NoClassDefFoundError:com/sap/tc/webdynpro/modelimpl/dynamicrfc/WDDynamicRFC
Hi,
I get a really odd exception, my scenario is as follows.
WDJ DC "models" contains all my RFC models (1 api public part "api_pp")
WDJ DC "delegates" contains a pure-java (no WDJ components) abstraction layer (1 api_pp, 1 ***_pp) depends on models (api_pp)
J2EE server side library "lib/delegates" depends on delegates (***_pp)
WDJ DC "client" uses delegates (api_pp). WDJ runtime reference towards lib/delegates (defLib).
When I run the app in client, I get
java.lang.NoClassDefFoundError: com/sap/tc/webdynpro/modelimpl/dynamicrfc/WDDynamicRFCExecuteException
at it.sap.fsh.formazione.<Client DC name here>(GestValComp.java:387)
at it.sap.fsh.formazione.<Client DC name here>(GestValComp.java:220)
most likely, lib/delegates does not resolve this class.
I have tried to declare lib/delegates dependency from tc/wd/webdynpro (default) both runtime and buildtime (also separately).
Something weird happens: buildtime dependency does not resolve issue, runtime dep does not resolve issue AND makes the DC disappear from Visual Admin -> server -> services -> Classloader Viewer -> Libraries, where it is usually correctly listed.
I am studying also JA340... but without luck
Can anyone please help?
Thanks in advance,
VincenzoHi Vincenzo,
I hope you have already created JCo destinations on the server for the RFCs imported in the 'models' Web Dynpro DC project.
If there is some change in backend RFC, then you will need to restart the server. You will have to re-import model in design time (in NWDS),
then do a DC Build & Deploy all the dependent DCs in the particular order and lastly DC Build, Deploy New Archive & Run your application.
Kind Regards,
Nitin
Edited by: Nitin Jain on Jan 6, 2009 9:09 AM -
I can't get this small test applet to run. My browser has the plug-in, my path and classpath settings are correct and I am able to run an application using a JFrame but I can't get this to run. I compiled the .java file and then wrote the html file to display the .class file. What's wrong with this? Is there a step in the compiling I don't know about? The browser says it can't find the class and when I tried to run it using the appletviewer I got the NoClassDefFoundError. I don't think there is anything wrong with the code. Oh, and I'm running these from within the bin directory also.
import javax.swing.*;
public class first extends JApplet{
public first(){}
public void init(){
JButton test=new JButton("Test");
JPanel pane=new JPanel();
pane.add(test);
setContentPane(pane);
<html>
<body>
<applet code="first.class">
</applet>
</body>
</html>Browsers won't use the plug-in with the <Applet> tag.
If you want the plug-in to be used, you must use an
<object> tag. That being said, I don't think that any
browsers support anything heigher than Java 1.1, which
doesn't include Swing. Switch to AWT. If that doesn't
work, set the codebase attribute of the Applet tag.
I'm not exactly sure how, but you should be able to
find out how to with relative ease.You do not need to switch to the AWT classes. Your problem lies somewhere between how your classpath is set up; where your webserver is pointing to find your classes; and, how you have your codebase and code tags are valued in your HTML page that contains the applet reference.
Is your HTML file in the same directory as your .class files?
Jeff
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