Tomcat cannot acces my class files

hallo,
tomcat cannot acces my class files
tomcat throws an Exception
threw exception java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl. ...
file struts.config.xml
<form-beans>
<form-bean name="helloForm"
type="org.apache.struts.webapp.example.HelloForm"/>
</form-beans>
HelloForm.class exist in the file org.apache.struts.webapp.example
what ist to do ???
are there new settings for tomcat ??
thanks

And you are 100% certain that your class file is in the approprite subfolder of WEBINF\classes or properly packaed in a jar in WEBINF\lib?
- K

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Cannot find the class file

Hi All,
Can any one help me regarding the issue?
Error:
package com.support.misc.feedback
I am getting the following error for the above line. But I have created the Hierarchy in folder structure. But still it is throwing the error.
1. Cannot find the class file for com.sapportals.htmlb.page.DynPage
2. This compilation unit indirectly references the missing type com.sapportals.htmlb.page.DynPage (typically some required class file is referencing a type outside the class path) FeedbackBean.java
Thanks in Advance.
Message was edited by: Gowsika Kannan

Hi Gowsika,
the class needed is located in htmlb.jar which can be found under <irj-root>/WEB-INF/portal/portalapps/com.sap.portal.htmlb/lib
You need to integrate this jar in your .classpath
Hope this helps,
Robert
PS: Please do not post the same question 3 times

Cannot find the class file for com.sap.portal.services.api.connectorgateway

Hi,
I was trying the "How to BI JAVA SDK in a Portal iView and get the following error.
The project was not built since its classpath is incomplete. Cannot find the class file for com.sap.portal.services.api.connectorgateway.IConnectorGatewayService. Fix the classpath and try rebuilding this project.
I have the following in my portalapp.xml file
<property name="SharingReference" value="com.sap.portal.ivs.connectorservice"/>
and i have also added the jar file "com.sap.portal.ivs.connectorservice_api" in the set of lib's
Has some faced a similar issue? or can someone suggest how I could possibly resolve this.
Thanks,
Smitha

Hi Smitha:
My webdynpro dc was build failed for "This compilation unit indirectly references the missing type com.sap.engine.services.webservices.espbase.client.dynamic.content.GenericObject (typically some required class file is referencing a type outside the classpath)".
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Cannot acces (a class), bad class file, class file contains wrong class

Hi,
I am trying to implement a Java package and I've never done this before. The package is called 'randomX' and I downloaded it from here: http://www.fourmilab.ch/hotbits/source/randomX/randomX.html
I downloaded the .tar file on my Windows Vista system, unzipped it, and dragged and dropped into(in my case): C:\Program Files\Java\jdk1.6.0_05\src\java\util
This is also the directory where Random.java is, so I figured it went there, plus the Java Documentation says that, I think.
The Java Docs are here: http://www.fourmilab.ch/hotbits/source/randomX/doc/
Thanks in advance,
Rommel.

dcminter wrote:
No. That's not right - you need to put the JAR file into your classpath.
[http://en.wikipedia.org/wiki/Classpath_(Java)|http://en.wikipedia.org/wiki/Classpath_(Java)]
If it doesn't come with a JAR file then you'll need to build it first. Sounds like that might be outside your comfort zone.Thanks for the link and the tip. I have no idea what a JAR file is, much less how to build one.
However, the thing has a "Makefile" file. Can I build the JAR from this?
#   Makefile for randomX package
JAVA = /usr/java/jdk1.5.0_06
CLASSPATH = $(JAVA)/classes:..:.
SRC = randomX.java randomJava.java randomHotBits.java randomLCG.java \
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CLASS = $(SRC:.java=.class)
all:
     javac -classpath .. *java ; cp -p *class randomX
test:
     java randomXdemo
clean:
     rm -f *.bak *.class
     rm -rf doc
     mkdir doc
     rm -rf randomX
     mkdir randomX
RELEASE = $(SRC) Makefile
release:
     tar cfvz randomX.tar.gz $(RELEASE)
html:
     javadoc -classpath $(CLASSPATH) -d doc *.java
images:
     ( cd $(JAVA)/images ; tar cfv /tmp/ZZimages.tar . )
     rm -rf doc
     mkdir doc
     mkdir doc/images
     (cd doc/images ; tar xfv /tmp/ZZimages.tar )
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     touch randomX.java
.SUFFIXES: .java .class

Cannot find the class file for javax.microedition.io.ContentConnection

I've downloaded and configured eclipse j2me plugin and am having no difficulty
creating Midlets according to the eclipse documentation
http://eclipseme.org/docs/createProject.html
(Also I have sun java wireless toolkit 2.5.2)
(I have imported wtk252 in window/preferences/j2me/dev mgmt
and added the search directory where wtk252 resides.)
However, after importing a ready-developed project into the same workspace
one of the pieces of code continuously gives a class not found error for
javax.microedition.io.ContentConnection
It's clear that one project understands how to resolve paths in
javax.microedition
and the other one doesn't, but I'm not sure how to configure the build path
using
QuickFix
ie I don't know physically what the name of the jar file with
javax.microedition.io.ContentConnection in it is called.

Er, thanks, (I think!)
Wouldn't it be easier for folks if you told them to look for packages using the CLDC Generic Connection Framework which is already inside javax.microedition.io?
By the time they've got GCF (which is used quite a lot,) they've got javax.microedition.io and they've therefore solved the problem!
I'd imagine that you could spend ages looking for "JSR 37 / 139" and get nowhere.

Tomcat Web-server uses old .class files

Hi Friends,
My Tomcat webserver uses old .class files. The problem persists even if I delete old class files. The new ones are formed but then if i again recompile, the new-old ones are used :)
Am I doing something wrong????
Please suggest!!

I have experienced this problem before as well. Tomcat seems to cache compiled class files for better speed. To get Tomcat to reload class files that I've recently recompiled here is what I do:
1. Go into the Tomcat server administration area (http://localhost/admin)
2. Choose the context that is using the classes that you want to reload (from Service / Host)
3. Make sure reloadable is set to true
3. Click save, and then commit changes
Hope this helps, but if there is a better way to get Tomcat to use the most recent class files I would love to hear it!

Where is this class file located??

In developer studio, I am getting an error when building my java project that says "The project was not built since its classpath is incomplete. Cannot find the class file for com.sapportals.wcm.util.uri.RID. Fix the classpath then try rebuilding this project."
Here is the import statement: import com.sapportals.wcm.util.uri.RID;
I have not been able to find the jar file needed to fix this anywhere. Does anybody know the name of the file required for this?
Thanks for any help!

first of all add a web dynpro reference (dc->properties)
PORTAL:sap.com/com.sap.km.application
second, check these links
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/5a/2e2f4234135433e10000000a155106/frameset.htm">external library dc</a>
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/194bdc4f-0901-0010-82ba-bf73af5d5f75">external libraries</a>
you may have to create a different dc to contain your jars.

Ant Trouble: Defining class file properly

I'm new to the Java and Ant world and was wondering if someone would be kind enough to explain why my sample xml file cannot find the class file?
The XML / class file relationship works well when both files are in the same directory. I then moved the class file into a subdirectory named "Dir1" and cannot seem to get the proper reference. I'm sure it's something simple but I'm not experienced enough to be able to figure it out.
The key seems to be in the bolded text below (or so I believe) but I haven't been able to find a path that seems to work as of yet. Each time I try the code below, I get a simple class cannot be found error.
XML File:
<?xml version="1.0"?>
<project name="Test" default="main">
<description>
Sample to test class file in subdirectory
</description>
<taskdef name="Hi1" classname="Ant.Sample.Dir1.Hi1"/>
<target name="main">
<Hi1 str1="This is Hi1.class"/>
</target>
</project>
Class File:
import org.apache.tools.ant.*;
import java.text.*;
public class Hi1 extends Task {
private String msg;
// Set msg variable
public void setstr1(String str1)
this.msg = str1;
// The method executing the task
public void execute() throws BuildException {
main(msg);
public static void main(String msg)
System.out.println("Hi1: " + msg);
Thanks!
Cameron

Hi,
I'm not sure what exactly you want to do, but I recomend to do a little bit differently:
<?xml version="1.0"?>
<project name="Test" default="dist" basedir=".">
<description>
Sample to test class file in subdirectory
</description>
<target name="clean">
<delete dir="./classes/"/>
<delete dir="./dist/"/>
</target>
<target name="init">
<mkdir dir="./classes/"/>
<mkdir dir="./dist/"/>
</target>
<target name="compile" depends="init">
<javac srcdir="./dir1" destdir="./classes" />
</target>
<target name="dist" depends="compile">
<jar jarfile="./dist/test.jar" basedir="./classes/" manifest="manifest.mf"/>
</target>
<target name="run" depends="dist">
<exec dir="./dist/" executable="java.exe">
<arg line="-jar test.jar"/>
</exec>
</target>
</project>
manifest file looks like this:
Manifest-Version: 1.0
Main-Class: Hi1

Can't find class file from com.sap.tc....progmodel.context.AttributePointer

Hi. I developed a project with an older version of SAP NetWeaver and Web Dynpro and have now updated to newer versions (SAP NetWeaver 7.1).
I now tried to reimport the project and have 2 errors, i can't solve.
"The project was not built since its build path is incomplete. Cannot find the class file for com.sap.tc.webdynpro.progmodel.context.AttributePointer. Fix the build path then try building this project"
"The type com.sap.tc.webdynpro.progmodel.context.AttributePointer cannot be resolved. It is indirectly referenced from required .class files"
Does anybody know, how I can fix these problems?
Thanks, Tobias

Hi,
Refer this link
Using JAR Class Finder
in the server u can find the jar files required for the application....
C:usrsapJ2EJC00j2eeclusterserver0appssap.comirjservlet_jspirj
ootWEB-INFportal
Regards,
Senthil K.

Tomcat can't locate my class files

Tomcat can't locat my class file for my javabeans in a jsp page.
(Tomcat 4.1.24/windows XP)
I have created inside of webapps a directory thesis and also the WEB-INF\classes and WEB-INF\lib. I don't know what should I put in web.xml so it is basically almost empty.
this is the error I get where Searcher is my javabean:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Since fork is true, ignoring compiler setting.
[javac] Compiling 1 source file
[javac] Since fork is true, ignoring compiler setting.
[javac] C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\thesis\search_jsp.java:89: cannot resolve symbol
[javac] symbol : class Searcher
[javac] location: class org.apache.jsp.search_jsp
[javac] Searcher seek = null;
[javac] ^
[javac] C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\thesis\search_jsp.java:91: cannot resolve symbol
[javac] symbol : class Searcher
[javac] location: class org.apache.jsp.search_jsp
[javac] seek = (Searcher) pageContext.getAttribute("seek", PageContext.PAGE_SCOPE);
[javac] ^
[javac] C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\thesis\search_jsp.java:94: cannot resolve symbol
[javac] symbol : class Searcher
[javac] location: class org.apache.jsp.search_jsp
[javac] seek = (Searcher) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "Searcher");
[javac] ^
[javac] C:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\thesis\search_jsp.java:111: cannot resolve symbol
[javac] symbol : class Searcher
[javac] location: class org.apache.jsp.search_jsp
[javac] out.print(JspRuntimeLibrary.toString((((Searcher)pageContext.findAttribute("seek")).getAnalyze())));
[javac] ^
[javac] 4 errors
     at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:130)
     at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
     at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:353)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:370)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:473)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:190)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     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 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.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:2415)
     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:594)
     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)

did you create the Searcher class? if so stick it in a package and put it under your web-inf directory. then use an <%@ page import="" %> statement to import the code.
if you didn't create the class is it in some jar library you downloaded? if so stick the jar file in your web-inf/lib folder.
-S-

Cannot access Graphics - bad class file

Hey.
When I try to compile my source I get an error saying...
.\Man.java:146: cannot access Graphics
bad class file: .\Graphics.java
file does not contain class Graphics
Please remove the files or make sure it appears in the correct subdirectory.
It's on a different computer so that's not exactly it, but it's close enough. Compiler was working fine until the other day when i found out that all the source files were zipped up in src.zip, I had to extract Graphics.java so I could open it in emacs, and after I did that it started giving me that error message. There's nothhing wrong with my source, and I didn't move Graphics, it's still in the correct place exactly as it was, and i looked at it, all the right stuff is still inside. I'm quite confused.
So do I have to reinstall? That would mean a massive download on my 56k and I kinda wanna carry on with my work.

You should not need to unzip src.zip to use the Graphics class or any class that comes with j2sdk. The compiled classes are in jar files that are installed in certain directories when you install the j2sdk.
You should only need to have a line "import java.awt.Graphics;" near the start of your source code.
The error most likely occurred when the compiler found a Graphics.class file but inside the file is java.awt.Graphics class, not a plain Graphics class.

Startup class cannot find a config file.

I have written a startup class to configure log4j in Weblogic.
The class runs but cannot find the configuration file. The
code for the startup class is as follows....
package com.n2bb.ams.common.util;
import java.io.FileInputStream;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Properties;
import com.n2bb.ams.common.util.FileLocator;
import org.apache.log4j.xml.DOMConfigurator;
* Insert the type's description here.
* Creation date: (12/5/00 11:12:13 AM)
* @author: Administrator
public class ApplicationStartUp implements weblogic.common.T3StartupDef {
     * ApplicationStartUp constructor comment.
     public ApplicationStartUp() {
          super();
     * setServices method comment.
     public void setServices(weblogic.common.T3ServicesDef arg1) {
     * startup method comment.
     public String startup(String arg1, java.util.Hashtable arg2) throws Exception {
          String resource = null;
          try {
               resource = (String) arg2.get("configFileName");
               System.out.println("ConfigFileName: " + resource);
               URL configFileResource = ApplicationStartUp.class.getResource(resource);
               System.out.println("configFileResource: " + configFileResource.toString());
               String file = configFileResource.getFile();
               DOMConfigurator.configure(file);
               return "Log4j configuration initialized completed.";
          } catch (Exception e) {
               System.out.println("Cannot open config file: " + resource);
               return "Log4j configuration failed to initialized.";
The section of the config.xml the calls my startup class looks
like....
<StartupClass
Arguments="configFileName=/bea/user_projects/mydomain/log4j-config.xml"
ClassName="com.n2bb.ams.common.util.ApplicationStartUp"
Name="AMS Startup Class" Targets="myserver"/>
I have tested the code in a standalone class and it works fine.
Why can't I find the log4j-config.xml file? Any help would be
greatly appreciated.

Wow, your system must have a long history of having picked up assorted bad stuff ...
You have CleanMyMac2, which should definitely be removed.
You have other stuff (MacCleanse, for example) that I don't have first-hand knowledge about but should very likely be removed.
You are using Google Chrome which is a resource hog.
Further, your Adobe Flash player is not current.
If I had all these issues, I would do a clean install of Yosemite and only reintroduce the essential stuff.
You can search for the .plist files by opening finder, holding down the Option key, and doing Go > Library from Finder's menu and then searching for the file(s).

Cannot write class file...

I have no idea what this means. This app was running just
fine. Then wham.
Here is the error message:
Errors reported by Java compiler: Found 1 semantic error
compiling
"D:/CFusionMX/wwwroot/WEB-INF/cfclasses/cfApplication2ecfm855244706.java":
1. public final class cfApplication2ecfm855244706 extends
coldfusion.runtime.CFPage{ <-------------------------> ***
Error: Cannot write class file "cfApplication2ecfm855244706.class"
because that name conflicts with the name of the class file
"cfapplication2ecfm855244706.class" in directory "cfclasses". This
is illegal because file names are case-insensitive in this system.
If anyone can tell me where to look and what to do here, I
would be very grateful.
Thanks,
Lee

Try clearing out your cfclasses directory which is located on
your machine at D:\CFusionMX\wwwroot\WEB-INF\cfclasses. Then
restart CF.

Tomcat Jasper-Unable to rename class file

I keep getting the following error, whenever i first get
concurrent hits on a JSP page under tomcat. Successive
concurrent hits are then ok but sometimes only.
Can any one help me out in solving this problem.
Thanks...
The error is shown below as follows.
org.apache.jasper.JasperException: Unable to rename class file C:\jakarta-tomcat-3.2.1\work\localhost_8080%2Fisa\ipp\_0002fipp_0002fdettagcutsectwise_0002ejspdettagcutsectwise_jsp_18.class to C:\jakarta-tomcat-3.2.1\work\localhost_8080%2Fisa\_0002fipp_0002fdettagcutsectwise_0002ejspdettagcutsectwise.class
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:270)
     at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462)
     at org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:152)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:164)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
     at org.apache.tomcat.core.Handler.service(Handler.java:286)
     at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
     at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797)
     at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
     at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210)
     at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
     at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
     at java.lang.Thread.run(Thread.java:484)

Hi,
Most of the time error occurs on Windows plateform.
The main reason behind this is nesting of the directories.
Also the long directory names causes this problem.
Thus try to keep the directory name small and the try to nest the directories to store the jsp's
I have faced same problem when i used to work on Tomcat. But this problem is never occurd on Resin.
Well try these options. This may help u...
Kind regards
Chetan Chandarana

Class file cannot be loaded.

I wrote an applet code and tested it in appletviewer. It's fine. But the class file cannot be loaded into the browser. Please tell me how to fix it.
I appreciate any help.

Couple small errors. You have a close bracket instead of a close parens after "Hello" and most importantly, you are missing a few steps. Here is one solution.
import javax.swing.JApplet;
import java.awt.Graphics;
public class Test extends JApplet{
public void paint(Graphics g)
g.drawString("Hello", 25, 25);
I imported the swing and awt packages. This allowed the call to graphics. I also replaced the close bracket with a close parens.
You almost had it. The HTML you supplied is correct.

Tomcat cannot acces my class files

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