I am trying some Apache Cassandra examples and could run the server by calling the cassandra.bat file before. I didn't change anything deliberately, but now, Cassandra will not start.
I searched the Web for the error message "Could not find the main class: Files\Apache. Program will exit." and found out that there may be some space in a system variable called CATALINA_HOME, but I didn't set that variable ever. Do you know about a proper solution for this error?
C:\Program Files\Apache Cassandra\bin>cassandra
Starting Cassandra Server
Exception in thread "main" java.lang.NoClassDefFoundError: Files\Apache
Caused by: java.lang.ClassNotFoundException: Files\Apache
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: Files\Apache. Program will exit.
Perhaps you got a space in your Cassandra-Installation-Dir? Where did you install it?
Current Run-Scripts got problems on Windows if the Directory where you unzipped the file got a Space in it.
Perhaps your JAVA_HOME is set wrong? Open a console (Start -> Run -> cmd) and type
echo %JAVA_HOME%
Related
This question already has answers here:
java.rmi.ServerException: RemoteException occurred in server thread (ClassNotFoundException)
(5 answers)
Closed 6 years ago.
Hi I'm trying to run a java application that binds a class to the naming server, but i constantly get a ClassNotFoundException
First I start the registry:
rmiregistry
then from eclipse I try to execute the server but get this error
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:396)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at progInternet2008.Pozzobon.tesi.Slave.main(Slave.java:54)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:386)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
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 java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:711)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:655)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:592)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1531)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1493)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
... 12 more
I've read the RMI Java tutorial but still could not get it working...
As VM Arguments I've set this:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008
please help me
(I'm using Java 6)
Run the rmiregisrty command from your /bin, /build, or /build/classes folder, whichever folder is the root of your built files.
I spent half a day trying to solve that same thing.
The exception is occurring because the rmiregistry application doesn't know where to load classes from. When you attempt to bind an object in the RMI registry, the registry downloads the class definition for that object. Some of the other answers are telling you to get around this by setting the classpath for the rmiregistry app so that it has the class definitions when it is started and doesn't need to download anything, but Sun's Java RMI tutorial explicitly says not to do this. I suspect this has the potential to cause conflicts between the version of the class in the registry and the class on the server.
The correct way to handle the problem is to set the java.rmi.server.codebase property as you were trying to do. The property requires that a directory path be terminated with a forward slash, like so:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008/
You may also be having trouble if the ${workspace_loc} variable is a relative path and the rmiregistry application was not started in the same directory so the relative path is not correct for it. If you either make the path absolute, or start the rmiregistry in the appropriate directory, the ClassNotFoundException should go away. See the tutorial on the java.rmi.server.codebase property for a little more detailed information.
Okay I just overcame this problem. Make sure when you run rmiregistry that your CLASSPATH environment variable is set.
For example, you might have a script:
set CLASSPATH=[path to jdbc driver].jar
rmiregistry.exe
This was all I needed to get my lost classpath working. I'm not sure how to send -cp commandline to rmiregistry.exe. Its documentation is quite lacking.
I'm fairly certain that you'll have to start your RMI server using the same classpath as your application. I believe it takes the same parameters as java, i.e. -cp [your class path].
Close the cmd window where the rmiregistry was initially started.In a fresh cmd go to the location where your project classfiles are located(uptill bin) and start the registry using the below command:
rmiregistry -J-Djava.rmi.server.useCodebaseOnly=false
If you are using Eclipse ,Run the ServerSideProject and your ImplementationClass Instance gets bound to the URL specified.
Just print a line below the the binding method and see to it whether it is gets printed. If it gets printed successfully it means your server is working fine.
try to add /bin at the end of your VM Arg:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008/bin
The file you will run are in this directory, so you need to include it in the path.
I upgraded from JDK1.6.0_33 to 1.7.0_45 and had the same problem. I found this document and resolved the problem by starting rmiregistry with:
rmiregistry -Djava.rmi.server.useCodebaseOnly=false
Refer below
http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/enhancements-7.html
I had the same problem, to fix this ensure that your CLASSPATH is set to the path containing the server classes when running rmiregistry.
On a linux machine run the following commands.
export CLASSPATH="<server_class_path>"
Ensure the CLASSPATH has been set:
echo $CLASSPATH
Once the class path has been set, run rmiregistry
rmiregistry &
I spent a whole day uninstalling and reinstalling my JDK and changing the classpaths's and environment variables. But the culprit was that the command start rmigregistry didnt' start rmiregistry in a proper way. So, thanks for the comments on this page the solution was to unset the CLASSPATH temporarily. And that is done through the command set CLASSPATH=
This question already has answers here:
java.rmi.ServerException: RemoteException occurred in server thread (ClassNotFoundException)
(5 answers)
Closed 6 years ago.
Hi I'm trying to run a java application that binds a class to the naming server, but i constantly get a ClassNotFoundException
First I start the registry:
rmiregistry
then from eclipse I try to execute the server but get this error
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:396)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at progInternet2008.Pozzobon.tesi.Slave.main(Slave.java:54)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source)
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:386)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:250)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: progInternet2008.commons.NominabileFactory
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 java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at sun.rmi.server.LoaderHandler.loadProxyInterfaces(LoaderHandler.java:711)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:655)
at sun.rmi.server.LoaderHandler.loadProxyClass(LoaderHandler.java:592)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(RMIClassLoader.java:628)
at java.rmi.server.RMIClassLoader.loadProxyClass(RMIClassLoader.java:294)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(MarshalInputStream.java:238)
at java.io.ObjectInputStream.readProxyDesc(ObjectInputStream.java:1531)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1493)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
... 12 more
I've read the RMI Java tutorial but still could not get it working...
As VM Arguments I've set this:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008
please help me
(I'm using Java 6)
Run the rmiregisrty command from your /bin, /build, or /build/classes folder, whichever folder is the root of your built files.
I spent half a day trying to solve that same thing.
The exception is occurring because the rmiregistry application doesn't know where to load classes from. When you attempt to bind an object in the RMI registry, the registry downloads the class definition for that object. Some of the other answers are telling you to get around this by setting the classpath for the rmiregistry app so that it has the class definitions when it is started and doesn't need to download anything, but Sun's Java RMI tutorial explicitly says not to do this. I suspect this has the potential to cause conflicts between the version of the class in the registry and the class on the server.
The correct way to handle the problem is to set the java.rmi.server.codebase property as you were trying to do. The property requires that a directory path be terminated with a forward slash, like so:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008/
You may also be having trouble if the ${workspace_loc} variable is a relative path and the rmiregistry application was not started in the same directory so the relative path is not correct for it. If you either make the path absolute, or start the rmiregistry in the appropriate directory, the ClassNotFoundException should go away. See the tutorial on the java.rmi.server.codebase property for a little more detailed information.
Okay I just overcame this problem. Make sure when you run rmiregistry that your CLASSPATH environment variable is set.
For example, you might have a script:
set CLASSPATH=[path to jdbc driver].jar
rmiregistry.exe
This was all I needed to get my lost classpath working. I'm not sure how to send -cp commandline to rmiregistry.exe. Its documentation is quite lacking.
I'm fairly certain that you'll have to start your RMI server using the same classpath as your application. I believe it takes the same parameters as java, i.e. -cp [your class path].
Close the cmd window where the rmiregistry was initially started.In a fresh cmd go to the location where your project classfiles are located(uptill bin) and start the registry using the below command:
rmiregistry -J-Djava.rmi.server.useCodebaseOnly=false
If you are using Eclipse ,Run the ServerSideProject and your ImplementationClass Instance gets bound to the URL specified.
Just print a line below the the binding method and see to it whether it is gets printed. If it gets printed successfully it means your server is working fine.
try to add /bin at the end of your VM Arg:
-Djava.rmi.server.codebase=file:${workspace_loc}/progInternet2008/bin
The file you will run are in this directory, so you need to include it in the path.
I upgraded from JDK1.6.0_33 to 1.7.0_45 and had the same problem. I found this document and resolved the problem by starting rmiregistry with:
rmiregistry -Djava.rmi.server.useCodebaseOnly=false
Refer below
http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/enhancements-7.html
I had the same problem, to fix this ensure that your CLASSPATH is set to the path containing the server classes when running rmiregistry.
On a linux machine run the following commands.
export CLASSPATH="<server_class_path>"
Ensure the CLASSPATH has been set:
echo $CLASSPATH
Once the class path has been set, run rmiregistry
rmiregistry &
I spent a whole day uninstalling and reinstalling my JDK and changing the classpaths's and environment variables. But the culprit was that the command start rmigregistry didnt' start rmiregistry in a proper way. So, thanks for the comments on this page the solution was to unset the CLASSPATH temporarily. And that is done through the command set CLASSPATH=
I am unable to resolve this issue in which i was trying to executing a java program through bash script .
Why i am getting this error ??
Exception in thread "main" java.lang.NoClassDefFoundError: com/QuoteTester
Caused by: java.lang.ClassNotFoundException: com.QuoteTester
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: com.QuoteTester. Program will exit.
This is my script content quotetest.sh
java -cp ./com/ug_ugbapi-all.jar com.QuoteTester $1
I am executing the script , this way
./quotetest.sh GOOG
From the directory from where i am executing this script quotetest.sh , in that i got a directory by name com under which i got ug_ugbapi-all.jar and QuoteTester.class classes .
Tried every option (placing all the files in same folder com , but nothing worked )
Could anybody please tell me how to resolve it ??
With your given classpath, Java is only going to look in the jar file. For it to find the class file outside of the jar, you have to modify your -cp argument:
java -cp ./com/ug_ugbapi-all.jar:. com.QuoteTester $1
You are getting this error because the com/QuoteTester class cannot be found, which means that the com/QuoteTester class is not on the classpath.
I'm trying to to run my freshly installed apache solr on my server (CENTOS 5.2 x86_64) and I get the followoing error messages:
Exception in thread "main" java.lang.NoClassDefFoundError: start/jar
Caused by: java.lang.ClassNotFoundException: start.jar
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: start.jar. Program will exit.
This is the commend I ran: java start.jar
As far as I'm aware everything is installed correctly.
Any ideas?
Thanks
C
Run it with java -jar, not java:
java -jar start.jar
The java command is used for running .class files, while the java -jar command actually executes the code in the jar properly, using the manifest file to interpret the jar's contents.
System properties:
Java 1.6
Mac OSX version 10
Ant 1.8
Scenario: I am working on my final year project which is to create a website which uses Lucene to search my website and my database. I am working through lucene demos here
http://lucene.apache.org/java/2_3_2/demo.html
which talks about classpath
http://lucene.apache.org/java/2_3_2/demo3.html and a web example
I have created a .bash_profile file in my home directory /Users/philhunter/ which sets my classpaths:
CLASSPATH=${CLASSPATH}:/Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/lucene-core-3.0.3.jar
CLASSPATH=${CLASSPATH}:/Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/lucene-demo-3.0.3.jar
CLASSPATH=${CLASSPATH}:/Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/src/demo/org/apache/lucene/demo
When i try and run the commands it asks on the command line i am getting ClassDefNotFoundError:
Exception in thread "main" java.lang.NoClassDefFoundError: /Users/philhunter/Desktop/COM562_Project/lucene-3/0/3/src/demo/org/apache/lucene/demo/IndexHTML
Caused by: java.lang.ClassNotFoundException: .Users.philhunter.Desktop.COM562_Project.lucene-3.0.3.src.demo.org.apache.lucene.demo.IndexHTML
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
The command line command is:
java /Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/src/demo/org/apache/lucene/demo/IndexHTML -create -index /Applications/MAMP/htdocs/
which should index my website files. That indexHTML file is a java file in that last classpath directory above. Anyone know why I am getting theat error!?
I think the path you're passing is the problem. Try adding the following to your bash script
cd /Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/src/demo/
java org.apache.lucene.demo.IndexHTML -create -index /Applications/MAMP/htdocs/
The problem is that when you run
java /Users/philhunter/Desktop/COM562_Project/lucene-3.0.3/src/demo/org/apache/lucene/demo/IndexHTML
you are telling java run the class in the package Users.philhunter.Desktop.COM562_Project.lucene-3.0.3.src.demo.org.apache.lucene.demo.