Can't find class at run time
i have equation.dtx , equation.class and equationImp.class in my web project at respective places.
I am trying to use equation.class programatically in one of my ejb which is in another ejb project. at compile time the ejb gets the equation.class and build's succesfully but when i run the program it's give me error
"java.lang.NoClassDefFoundError:" for equation.class.
Can anybody tell me what is the root cause of this problem and how can i fix it.
all opinions are welcome
Thanks in advance
I am also getting the same <b>NoClassDefFoundError</b>.I ensured the ejb jar is in classpath. I set that from Weblogic Builder.Can anyone help me??
Thx in advance.
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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 !
MaxBtw: 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 -
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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,
OllyTry 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 -
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Hello,
why do I get this error message:
Can't find class Startadmin
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I set the classpath before compiling the program
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When tried
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I'm using Netbeans Mobility 5.5
Please Assist,
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I set the classpath before compiling the program
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When I try to run the program at the command prompt
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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.
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ThanksMaybe.....
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
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But......????? uhmmmmmm??
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