9ias JSP can't find Classes I created

I created a package for my JSP and import it to be used in a JSP. It works great, but for some reason, it displays an error message saying it can't find the class in import. Can anyone explain that? Thanks.

Similar Messages

JSP can't find class file

I created a package for my JSP and import it to be used in a JSP. It works great a couple of times, but for some reason, it displays an error message saying it can't find the class in import. Can anyone explain that? Thanks.
null

This may be a classpath issue. Is it possible that you have changed your classpath
and restarted your web server? If you are
using a web server that lets you specify the
classpath in some properties file (i.e.,
wrapper.classpath) is is possible that that
has changed?

Can't find class org/apache/jk/apr/AprImpl

Hi
I have Tomcat 4.1.29 and Apache Web Server 2.0.48 installed.
I have used this tutorial since I'm a newbie :(
http://www.gregoire.org/howto/Apache2_Jk2_TC4.1.x_JSDK1.4.x.html
My problem is when I try to regroup them, I obtained this error error.log.
error] Can't find class org/apache/jk/apr/AprImpl
java.lang.NoClassDefFoundError: javax/management/MBeanRegistration
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.access$100(Unknown Source)
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClassInternal(Unknown Source)
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.access$100(Unknown Source)
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Here is my confid file (workers.properties) :
[logger]
level=DEBUG
[config:]
#file=C:/Apache2/conf/workers2.properties
file=C:/Apache2/conf/workers2.properties
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
#[logger.file:0]
#level=DEBUG
#file=C:/Apache2/logs/jk2.log
[shm:]
info=Scoreboard. Required for reconfiguration and status with multiprocess servers
file=C:/Apache2/logs/jk2.shm
size=1000000
debug=0
disabled=0
[workerEnv:]
info=Global server options
timing=1
debug=0
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
info=Default load balancer.
debug=0
#[lb:lb_1]
#info=A second load balancer.
#debug=0
[channel.socket:localhost:8009]
info=Ajp13 forwarding over socket
debug=0
tomcatId=localhost:8009
#[channel.socket:localhost:8019]
#info=A second tomcat instance.
#debug=0
#tomcatId=localhost:8019
#lb_factor=1
#group=lb
#group=lb_1
#disabled=0
#[channel.un:/opt/33/work/jk2.socket]
#info=A second channel connecting to localhost:8019 via unix socket
#tomcatId=localhost:8019
#lb_factor=1
#debug=0
[channel.jni:jni]
info=The jni channel, used if tomcat is started inprocess
[status:]
info=Status worker, displays runtime informations
[vm:]
info=Parameters used to load a JVM in the server process
#JVM=C:\jdk\jre\bin\hotspot\jvm.dll
OPT=-Djava.class.path=c:/Tomcat/bin/tomcat-jni.jar;c:/Tomcat/server/lib/commons-logging.jar
OPT=-Dtomcat.home=${TOMCAT_HOME}
OPT=-Dcatalina.home=${TOMCAT_HOME}
OPT=-Xmx128M
#OPT=-Djava.compiler=NONE
disabled=0
[worker.jni:onStartup]
info=Command to be executed by the VM on startup. This one will start tomcat.
class=org/apache/jk/apr/TomcatStarter
ARG=start
disabled=0
stdout=C:/Apache2/logs/stdout.log
stderr=C:/Apache2/logs/stderr.log
[worker.jni:onShutdown]
info=Command to be executed by the VM on shutdown. This one will stop tomcat.
class=org/apache/jk/apr/TomcatStarter
ARG=stop
disabled=0
[uri:/jkstatus/*]
info=Display status information and checks the config file for changes.
group=status:
#[uri:127.0.0.1:8003]
#info=Example virtual host. Make sure myVirtualHost is in /etc/hosts to test it
#alias=myVirtualHost:8003
#[uri:127.0.0.1:8003/ex]
#info=Example webapp in the virtual host. It'll go to lb_1 ( i.e. localhost:8019 )
#context=/ex
#group=lb_1
[uri:/examples]
info=Example webapp in the default context.
context=/examples
debug=0
#[uri:/examples1/*]
#info=A second webapp, this time going to the second tomcat only.
#group=lb_1
#debug=0
[uri:/examples/servlets/*]
info=Prefix mapping
[uri:/examples/*.jsp]
info=Extension mapping
[uri:/examples/*]
info=Map the whole webapp
[uri:/examples/servlets/HelloW]
info=Exampel with debug enabled.
debug=10
Thank you for your time !
Max

Btw: I get the warning starting IIS - It seems to me that IIS tries to load Tomcat on-the-fly. The Tomcat load the fails and IIS continues to load successfully.
The beginning of the IIS Event log outputs this:
Apache Jakarta Connector2, Information, Info: [jk_vm_default.c (340)]: vm.detach() ok
Apache Jakarta Connector2, Warning, Error: [jk_worker_jni.c (308)]: Can't find class org/apache/jk/apr/AprImpl
Apache Jakarta Connector2, Information, Info: [jk_worker_jni.c (297)]: Loaded org/apache/jk/apr/TomcatStarter
Apache Jakarta Connector2, None, Debug: [jk_vm_default.c (302)]: vm.attach() allready attached
Apache Jakarta Connector2, Information, Info: [jk_worker_jni.c (252)]: jni.validate() class= org/apache/jk/apr/TomcatStarter
Apache Jakarta Connector2, Information, Info: [jk_vm_default.c (607)]: vm.open2() done
Apache Jakarta Connector2, Information, Info: [jk_vm_default.c (500)]: vm.init(): Jni lib: C:\wwwapps\j2sdk1.4.2_01\jre\bin\client\jvm.dll
/watson

Can't find class when executing javabean test

Hi,
I've installed Sunone 6.0
JSP is installed
JDK is installed
I've written and compiled a simple javabeans program
and it generates class correctly.
When I try to execute I get "Can't find class" error.
Where does the class need to reside after compiling?
Is my PATH hosed?
Thanks for any pointer
Willie

hi
did you get a chance to read this doc:
http://docs.sun.com/source/817-6251/pwajsp.html

ERROR: Can't find class Startadmin

Hello,
why do I get this error message:
Can't find class Startadmin
I want to start my class Startadmin.java with "java Startadmin"!
The file is in the current path, so I tried "java -classpath .: Startadmin" too, but I sill get this error!
What can I do?

Can you please post the solution, I'm having similar problem.
I set the classpath before compiling the program
export CLASSPATH=/usr/java/lib/classes.zip:/oracle/product/8.1.6/demo/lib/classes111.zip
When I try to run the program at the command prompt
$ java JdbcTest
I am getting error message "Can't find class JdbcTest"
When tried
$ java -classpath . JdbcTest
I was getting different error message
java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver at JdbcTest.main(Compiled Code)
Any help is appreiated
Thanks
SJ

Error: Can't find Class

Hi there,
I have added an external library (jtom) to my project. I get this runtime error when running my midlet:
Error: Can't find Class jtom.service.JTOMException.
When I extract the contents of the library(jtom), I can see that the class (jtom.service.JTOMException) exists. I can also see this class in myProject>>Build>>compiled folder.
I'm using Netbeans Mobility 5.5
Please Assist,
Pheks

Can you please post the solution, I'm having similar problem.
I set the classpath before compiling the program
export CLASSPATH=/usr/java/lib/classes.zip:/oracle/product/8.1.6/demo/lib/classes111.zip
When I try to run the program at the command prompt
$ java JdbcTest
I am getting error message "Can't find class JdbcTest"
When tried
$ java -classpath . JdbcTest
I was getting different error message
java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver at JdbcTest.main(Compiled Code)
Any help is appreiated
Thanks
SJ

Where can i find class files in server

Hi Gurus,where can i find class files in server.
Kranthi

Hi,
Class files:
Common\JAVA_TOP
Pages:
Appl\mds
Regards
Meher Irk

How can I find out who created or which id created the Essbase app. Is there any file where can i go and check to see?

Hi All,
Do you guys know how can I find out who created or which id created the Essbase app. Is there any file where can i go and check to see?
I am on UNIX and 11.1.2.2
Thanks all.

Don't think that information is kept anywhere.
This is how the log will look like during app and db creation
[Fri Aug 02 13:35:55 2013]Local/ESSBASE0///9036/Info(1051001)
Received client request: Get Extended Application Info (from user [celvin@Native Directory])
[Fri Aug 02 13:36:04 2013]Local/ESSBASE0///8072/Info(1042059)
Connected from [fe80::a531:1592:875b:3873]
[Fri Aug 02 13:36:04 2013]Local/ESSBASE0///8072/Info(1051001)
Received client request: MaxL: Execute (from user [celvin@Native Directory])
[Fri Aug 02 13:36:06 2013]Local/ESSBASE0///5432/Info(1042059)
Connected from [fe80::a531:1592:875b:3873]
[Fri Aug 02 13:36:15 2013]Local/ESSBASE0///8072/Info(1051061)
Application test loaded - connection established
[Fri Aug 02 13:36:15 2013]Local/ESSBASE0///8072/Info(1054027)
Application [test] started with process id [4324]
[Fri Aug 02 13:36:15 2013]Local/ESSBASE0///8072/Info(1056010)
Application test created
[Fri Aug 02 13:37:22 2013]Local/ESSBASE0///6972/Info(1051001)
Received client request: MaxL: Define (from user [celvin@Native Directory])
[Fri Aug 02 13:37:22 2013]Local/ESSBASE0///6972/Info(1051001)
Received client request: MaxL: Fetch (from user [celvin@Native Directory])
[Fri Aug 02 13:37:28 2013]Local/ESSBASE0///4520/Info(1042059)
Connected from [fe80::a531:1592:875b:3873]
[Fri Aug 02 13:37:28 2013]Local/ESSBASE0///4520/Info(1051001)
Received client request: MaxL: Execute (from user [celvin@Native Directory])
[Fri Aug 02 13:37:28 2013]Local/ESSBASE0///4520/Info(1054014)
Database test loaded
[Fri Aug 02 13:37:28 2013]Local/ESSBASE0///4520/Info(1056020)
Database test.test created
Regards
Celvin
http://www.orahyplabs.com

HELP - 'Can't find class' error

I have just bought a new computer with Windows XP and downloaded and installed the new versions of the jdk, jre, etc.
I have written the Hello World program to check that everything works. It compiles fine, but when I try to run I get an error - Can't find class helloworld - and then it exits.
I know that the path variable is set correctly and I used to have to set the classpath as well, but have been told that this is not necessary.
I really need to get this working as have some important programming to do.
Thanks for any help,
Olly

Try this;-
prompt>set CLASSPATH=
.......> return key
prompt>java helloWorld
Hello World!
prompt>
AMAZING!
This works fine. Thanx.
Is there any way to set it so that I dont have to do
the set classpath stuff each time I run a program
though?
CheersWell, set a system variable
CLASSPATH=.;<java_home>\jre\lib\rt.jar
regardws, Thomas

Can't find class error on Tru64 UNIX

I have written a class, TextProcessor, and I can compile and run it without any problems on my Win2K box. I ftp the source to works Tru64 box and compile the class just fine. When I issue the command "java TextProcessor" I get the msg "Can't find class TextProcessor". I immediately thought I had a classpath issue. I messed around with setting my classpath but without luck.
I then wrote a new class on the Unix box using vi called Hello.java. I compile the Hello class without a problem. I issue the command "java Hello" and get "Hello!", just like I am supposed to get.
The 2 classes reside in the same directory, TextProcessor does not have any package statements. I am totaly confused.
Environment information:
Tru64 UNIX version 5 or so.
JDK 1.1.8 (not my choice and I have no control over the JDK)
JRE 1.2.2 is also installed.
Please help!
Thanks

Maybe.....
Make sure that you have the permissions necesary to read,write and execute the file from your own account.
If you canno't find any class maybe is because you cannot read.
What account are you used to pute the file from Win?
you can try this...
chmod 777 TextProcessor.java
chmod 777 TextProcessor.class
But......????? uhmmmmmm??
I'm not sure, because If you can compile then you can read the file, but it's depends you umask ......
it's only a suggest

"can't find class" error

i have win xp as my OS and jdk1.1.8 installed. I have my class path set correctly. I have changed the environment variable to c:\jdk1.1.8\bin
When I compile my java programs using javac at the command prompt, the program compiles successfully and the class file is made but when I run it I get the erro "can't find class filename"
I there some other way to set the class path in XP .
I don't understand where I am going wrong.
Please help...

to run a java file you would type c:\jdk1.1.8\bin\java ClassName
leave it at that, i think the error your getting is caused when you type the .class extention ie. c:\jdk1.1.8\bin\java ClassName.class

My JSP can't find a class file

Hi
I am trying to view a JSP but I get ClassNotFoundException. I know that it means that it can't find the class but I can't understand why.
my directory structure:
Intranet->source
->jsp
->WEB-INF->classes->source-><class file here>
first line of .java file:
package source;
JSP code:
<%@page import="java.sql.*, source.*, java.util.*;" %>
<jsp:useBean id="dbConnect" scope="session" class="source.DBConnect">
<jsp:getProperty name="dbConnect" property="jdbc:odbc:Auto_Intranet" />
</jsp:useBean>
Must I create an environment variable for 'Windows': with classpath " .....\WEB-INF\classes"
The Windows environment variable doesn't exist----using XP Pro

Looks right to me.
You don't need a classpath variable. Web containers ignore it anyway.
Which class is not found? source.DBConnect?
Is DBConnect in a package called source?
Is your database driver in the web-inf/lib directory?
Please post the full error message with stack trace - it will be easier to sort out.
Good luck,
evnafets

Tomcat config problem: jsp can't find a bean class

I've been working within a JSP/Javabeans/JDBC/MySQL architecture with Windows XP and Websphere. So far everything works perfectly. Now I need to get the same project and make it run with a Tomcat server.
I've already set the Tomcat server but its not working properly. I have a problem when a jsp tries to access any class inside my project's package.
For example, when I make the next call:
<jsp:useBean id="ctrl" class="myPack.myBean" scope="page"/>
I get an error saying:
Error: 500
Location: /myproj/login.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile C:\Program Files\jakarta-tomcat-3.3.1\work\DEFAULT\myproj\login_1.java:64: Class myPack.myBean not found.
myPack.myBean ctrl = null;
^
I believe that my problem cames when setting the Tomcat environment. So far what I have done is:
* install j2sdk-1.3.1.03
* install jakarta-tomcat-3.3.1
* install mysql-max-3.23.51-win
* set the environment variable JAVA_HOME
* set the environment variable TOMCAT_HOME
* set the environment variable MYSQL_HOME
* add the %JAVA_HOME%\bin to the PATH
* create 'myproj' directory inside TOMCAT_HOME\webapps
* create into 'myproj' the subdirectory WEB-INF\classes and copy into it the jar file with my java classes (myPack.jar).
* copy into TOMCAT_HOME\lib\apps the JDBC driver for MySQL.
* copy my project files (jsp, html, images, etc.) and its structure into 'myproj' directory.
I haven't include anything into the CLASSPATH because so far I've read that Tomcat will automatically include all the classes that are inside the directories TOMCAT_HOME\myproj\WEB-INF\classes and TOMCAT_HOME\lib\apps.
I really don't have a clue about what I'm doing wrong. I'd apreciate if anyone can help me out with this one ;) ... I thank you in advance!

Hi, it's me again!.
Since nobody replied to me I'm replying myself :D
Ok, seriously is just to let you know that I have solved my problem and I would like to tell you how I solved it ... somebody might be doing the same mistake than I was doing and could found this helpful. I just forgot to mention that I was using Tomcat 3.3.
Well, first of all let me tell you that there was nothing wrong with the previous configuration that I post in my first message. Everything is ok except that in the TOMCAT_HOME\webapps\myproj\WEB-INF\classes directory I was putting my classes as a jar file, so I deleted it and instead I put the directory myPack with its unpacked class files. THIS SOLVED MY PROBLEM!!!
First I was trying to do some complicated things editing bat and xml files, but as a matter of fact I found it's quite simple. Furthermore, I was really surprised by the performance of Tomcat. I'm relly happy for that !! ;)
Hope it works for you,
Ernesto

JSP can't find bean class!!!!!

First of all, I'm using jdk1.4 beta and Jakarta's tomcat version 4.0.1 release build.
Hello. I desparately need help. I have a JavaBean class ("CarBean.class") saved in %catalina_home%\webapps\root\myapp\web-inf\classes\com\wrox\cars\CarBean.class
I also have a jsp page saved as carpage.jsp in %catalina_home%\webapps\root\myapp\
So when I point my browser to http://localhost:8080/myapp/carpage.jsp, I get an internal server error. It appears it can't find the JavaBean class for some reason. I'm pretty sure I have my envionment variables set up right. I can get it to work, if I save the JavaBean class in c:\jdk1.4\jre\class\com\wrox\cars
Here's my JavaBean class source file:
package com.wrox.cars;
import java.io.Serializable;
public class CarBean implements Serializable {
public CarBean() {
private String make = "Ford";
public String getMake() {
return make;
public void setMake(String make) {
this.make = make;
and here's my jsp page:
<html>
<head>
<title>Using a JavaBean</title>
</head>
<body>
<h2>Using a JavaBean</h2>
<% com.wrox.cars.CarBean myCar = new com.wrox.cars.CarBean(); %>
I own a <%= myCar.getMake() %>
<% myCar.setMake("Ferrari"); %>
Now I own a <%= myCar.getMake() %>
</body>
</html>
This is the only thing I've modified in the server.xml file:
<Context path="/myapp" docBase="myapp" debug="0" reloadable="true"/>
I'm not new to java, just JSP. I just don't know why I can't get the jsp to locate the JavaBean class. I remember I used to have an older version of Tomcat and I recall not having any problems. It seems the Tomcat 4.XX is somewhat significantly different than previous versions. Perhaps I configured my Tomcat or server.xml wrong? Help would be greatly appreciated. Thanks.

Hi,
I am having a similar problem. I was wondering if you found a solution. The error I get is listed below. I have my jsp file at ../webapps/ROOT/myapp/web and my bean file located at ../webapps/ROOT/myapp//src.
Any help will be highly appreciated
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
An error occurred at line: 8 in the jsp file: /DataBaseSelect.jsp
Generated servlet error:
D:\WeeklyReportProject\jwsdp-1_0_01\work\Standard Engine\localhost\Test\DataBaseSelect$jsp.java:61: Class org.apache.jsp.DataBaseSelect not found.
DataBaseSelect select = null;
^
An error occurred at line: 8 in the jsp file: /DataBaseSelect.jsp
Generated servlet error:
D:\WeeklyReportProject\jwsdp-1_0_01\work\Standard Engine\localhost\Test\DataBaseSelect$jsp.java:64: Class org.apache.jsp.DataBaseSelect not found.
select= (DataBaseSelect)
^
An error occurred at line: 8 in the jsp file: /DataBaseSelect.jsp
Generated servlet error:
D:\WeeklyReportProject\jwsdp-1_0_01\work\Standard Engine\localhost\Test\DataBaseSelect$jsp.java:69: Class org.apache.jsp.DataBaseSelect not found.
select = (DataBaseSelect) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "DataBaseSelect");
^
3 errors, 1 warning

Can't find class because of try catch block ?!

Hello,
I'm using the JNI to use a java library from my c++ code.
JNI can't find the "Comverse10" class below, but when i put the try catch block in createMessage in comment, FindClass succeeds ?!
Unfortunatly i need the code inside the try block ;-)
I tried a few things, but none of them worked:
- let createMessage throw the exception (public void createMessage throws ElementAlreadyExistsException ), so there isn't a try catch block in createMessage => result: the same
- make a "wrapper" class Comverse that has a Comverse10 object as attribute and just calls the corresponding Comverse10.function. Result: Comvers could be found, but not constructed (NewObject failed).
Can someone tell me what is going on ?!
Thank you,
Pieter.
//Comverse10 class
public class Comverse10 {
MultimediaMessage message;
/** Creates a new instance of Comverse10 */
public Comverse10() {
public void createMessage() {
TextMediaElement text1 = new TextMediaElement("Pieter");
text1.setColor(Color.blue);
SimpleSlide slide1 = new SimpleSlide();
//if i put this try catch block in comment, it works ?!
try{
slide1.add(text1);
catch(com.comverse.mms.mmspade.api.ElementAlreadyExistsException e){}
MessageContent content = new MessageContent();
content.addSlide(slide1);
this.message = new MultimediaMessage();
message.setContent(content);
message.setSubject("Mijn subjectje");
for those of you who are intersted: here's my C++ code:
//creation of JVM
HRESULT Java::CreateJavaVMdll()
     HRESULT HRv = S_OK;
char classpath[1024];
     jint res;
     if(blog)     this->oDebugLog->Printf("CreateJavaVMdll()");
     strcpy(classpath,"-Djava.class.path="); /*This tells jvm that it is getting the class path*/
     strcat(classpath,getenv("PATH"));
     strcat(classpath,";D:\\Projects\\RingRing\\MMSComposer;C:\\Progra~1\\j2sdk1~1.1_0\\lib");     //;C:\\Comverse\\MMS_SDK\\SDK\\lib\\mail.jar;C:\\Comverse\\MMS_SDK\\SDK\\lib\\activation.jar;C:\\Comverse\\MMS_SDK\\SDK\\lib\\mmspade.jar
     //------Set Options for virtual machine
     options[0].optionString = "-Djava.compiler=NONE"; //JIT compiler
     options[1].optionString = classpath;                                        //CLASSPATH
     //------Set argument structure components
     vm_args.options = options;
     vm_args.nOptions = 2;
     vm_args.ignoreUnrecognized = JNI_TRUE;
     vm_args.version = JNI_VERSION_1_4;
     /* Win32 version */
     HINSTANCE hVM = LoadLibrary("C:\\Program Files\\j2sdk1.4.1_01\\jre\\bin\\client\\jvm.dll");
     if (hVM == NULL){
          if(blog) oDebugLog->Printf("Can't load jvm.dll");
          return E_FAIL;
     if(blog) oDebugLog->Printf("jvm.dll loaded\n");
     LPFNDLLFUNC1 func = (LPFNDLLFUNC1)GetProcAddress(hVM, "JNI_CreateJavaVM");
     if(!func){
          if(blog)     oDebugLog->Printf("Can't get ProcAddress of JNI_CreateJavaVM");
          FreeLibrary(hVM);     hVM = NULL;
          return E_FAIL;
     if(blog)     oDebugLog->Printf("ProcAddress found");
     res = func(&jvm,(void**)&env,&vm_args);
     if (res < 0) {
if(blog)     oDebugLog->Printf("Can't create JVM with JNI_CreateJavaVM %d\n",res);
return E_FAIL;
     if(blog)     oDebugLog->Printf("JVM created");
     return HRv;
//finding Comverse10 class:
HRESULT CALLAS MMSComposer::InitializeJNI(void)
     HRESULT HRv=E_FAIL;
     DWORD T=0;
     try
          if(blog)     oDebugLog->Printf("\nInitializeJNI()");
          bJVM = FALSE;
          jni = new Java(oDebugLog);
          if(jni->CreateJavaVMdll()!=S_OK){
               if(blog)     oDebugLog->Printf("CreateJavaVMdll() failed");
               return HRv;
          jclass jcls = jni->env->FindClass("Comverse10");
          if (jcls == 0) {
if(blog)     oDebugLog->Printf("Can't find Comverse10 class");
               jclass jcls2 = jni->env->FindClass("test");
               if (jcls2 == 0) {
                    if(blog)     oDebugLog->Printf("Can't find test class");
                    return HRv;
               if(blog)     oDebugLog->Printf("test class found %08x",jcls2);
return HRv;
          if(blog)     oDebugLog->Printf("Comverse10 class found %08x",jcls);
          jmethodID mid = jni->env->GetMethodID(jcls , "<init>", "()V");
          if (mid == 0) {
               if(blog)     oDebugLog->Printf("Can't find Comverse10() constructor");
return HRv;
          if(blog)     oDebugLog->Printf("Comverse10() constructor found");
          jobject jobj = jni->env->NewObject(jcls,mid);
          if(jobj==0)
               if(blog)     oDebugLog->Printf("Can't construct a Comverse10 object");
return HRv;
          if(blog)     oDebugLog->Printf("Comverse10 object constucted");
          //Create Global reference, so java garbage collector won't delete it
          jni->jobj_comv = jni->env->NewGlobalRef(jobj);
          if(jni->jobj_comv==0)
               if(blog)     oDebugLog->Printf("Can't create global reference to Comverse10 object");
return HRv;
          if(blog)     oDebugLog->Printf("global reference to Comverse10 object %08x created",jni->jobj_comv);
          bJVM=TRUE;
          HRv=S_OK;
     }     catch( IDB * bgError ) { throw bgError->ErrorTrace("InitializeJNI::~InitializeJNI",HRv, 0, T); }
          catch(...) { throw IDB::NewErrorTrace("InitializeJNI::~InitializeJNI",HRv, 0, T ); }
          return HRv;

>
I would guess that the real problem is that that the
exception you are catching is not in the class path
that you are defining.Thanks jschell, that was indeed the case.
I don't have the docs, but I would guess that
FindClass() only returns null if an exception is
thrown. And you are not checking for the exception.
Which would tell you the problem.Ok, i'll remember that. But what with exceptions thrown in my java code, the documents say
// jthrowable ExceptionOccurred(JNIEnv *env);
// Determines if an exception is being thrown. The exception stays being thrown until either the native code calls ExceptionClear(), or the Java code handles the exception
so, what if the java code throws an exception and catches it, will i be able to see that in my c++ code with ExceptionOccurred ?
or
should the java method be declared to throw the exception (and not catch it inside the method)
Again, thank you for your help, it's greatly appreciated !

9ias JSP can't find Classes I created

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