nvvp in command line - java

I try to run nvvp for profiling cuda code in command line
nvvp ./my_app
But ,I get following error
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
I understand problem is with java not able to allocate sufficient heap to run the app. Based on what I read about this issue in SO (and else where in internet) I try following
java -Xmx128m nvvp ./myapp
It doesn't solve my problem and I get following message
Exception in thread "main" java.lang.NoClassDefFoundError: nvvp
Caused by: java.lang.ClassNotFoundException: nvvp
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:332)
Could not find the main class: nvvp. Program will exit.

This is following that worked in my case
setenv _JAVA_OPTIONS "-Xms512m -Xmx1024m"
However, _JAVA_OPTIONS seemingly can have multiple names across the different systems, hence find the right one before using it. It shows following while it has picked up correct variable
nvvp ./cb_dgemm_prof
Picked up _JAVA_OPTIONS: -Xms512m -Xmx1024m
If variable is not set up properly, you might not see the line above.

This message says that JVM was not able to allocate enough memory for the heap from OS, -Xmx/-Xms will not help in this case.
Please answer the questions I posted in a comment so we could find what is causing this problem...

Related

How to run old school Java programs with latest Java LTS 11?

I want to run Siemens LOGO Soft Comfort.
dell#dell-Precision-M6400:~/Hämtningar/Logo 6.1/Linux/tools/Application$ ./LOGOComfort
Unrecognized option: -Xincgc
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
dell#dell-Precision-M6400:~/Hämtningar/Logo 6.1/Linux/tools/Application$
This is Siemens LOGO soft comfort 6.1 and I have a license for that. But I have an issue.
Unrecognized option: -Xincgc
So how can I do so latest Java LTS 11 can work with Java from 2008? I assume that is Java SE 6 or J2SE 5.0.
With LOGO software, it comes with two folders bin and lib
Update:
I removed the -Xincgc in LOGOComfort.lax file and now I got this
dell#dell-Precision-M6400:~/Hämtningar/Logo 6.1/Linux/tools/Application$ ./LOGOComfort
Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)
Stack Trace:
java.lang.NoClassDefFoundError: com/sun/java/swing/plaf/windows/WindowsLookAndFeel
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:800)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:698)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:621)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at DE.siemens.ad.logo.app.Application.<clinit>(Application.java:141)
at Start.startApplication(Start.java:570)
at Start.main(Start.java:553)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.zerog.lax.LAX.launch(DashoA8113)
at com.zerog.lax.LAX.main(DashoA8113)
Caused by: java.lang.ClassNotFoundException: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 18 more
This Application has Unexpectedly Quit: Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)
dell#dell-Precision-M6400:~/Hämtningar/Logo 6.1/Linux/tools/Application$
Update:
Solution:
Remove -Xincgc
Use Java 8 instead. It requries Swing. Java 11 does not use Swing
open the file 'LOGOComfort', as it is likely a shell script. Find the -Xincgc option and remove it.
If it's gobbledygook, install a java6, which does have the now removed -Xincgc option.
If that's not an option, make a fake java: Make a script that rests at the 'real' java location, and all it does is scan for all command line args, strip -Xincgc from it, and pass the rest through unmolested to the real java. This is a crazy hack and is likely to break other things, but it will probably 'fix' this. I strongly recommend you go with one of the first 2 options first.
There is no way to tell java 11+: Can you 'support' the -Xincgc option.
The error message is saying that it can't find the look and feel profile associated with Windows.
java.lang.NoClassDefFoundError: com/sun/java/swing/plaf/windows/WindowsLookAndFeel
Clearly, this app was intended for Windows in the past. Maybe the script changes the look and feel profile, but I couldn't tell you without looking at it.
Best bet is try this on a Windows machine and see if it goes any further. If not then you'll have to try it with an older JRE that supports that, such as JRE 6.
I know this is a old question, but I still have a solution that may work (it worked for me). You need to make the application java executable by
chmod a+x $PATH_TO_LOGO/Application_64/jre/bin/java

increase jvm heap space while runnig from hadoop unix

I am running a java class test.java from hadoop command :
$ hadoop test
I am using a stringBuilder, and its size is going out of memory :
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2882)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder. java:100)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:572 )
at java.lang.StringBuffer.append(StringBuffer.java:320)
at java.io.StringWriter.write(StringWriter.java:60)
at org.json.JSONObject.quote(JSONObject.java:1287)
at org.json.JSONObject.writeValue(JSONObject.java:1597)
at org.json.JSONObject.write(JSONObject.java:1649)
at org.json.JSONObject.writeValue(JSONObject.java:1574)
at org.json.JSONArray.write(JSONArray.java:929)
at org.json.JSONObject.writeValue(JSONObject.java:1576)
at org.json.JSONObject.write(JSONObject.java:1649)
at org.json.JSONObject.writeValue(JSONObject.java:1574)
at org.json.JSONObject.write(JSONObject.java:1632)
at org.json.JSONObject.toString(JSONObject.java:1443)
I know in java we can run a java program by providing a heap space size :
java -Xmx4G test
How can I do this while running with hadoop, if I run it like :
$ hadoop -Xmx4G test
it throws exception :
Caused by: java.lang.ClassNotFoundException: java
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: java. Program will exit.
Error: No command named `-Xmx4g' was found. Perhaps you meant `hadoop Xmx4g'
I would like to change the heap size permanently.
Usually you do one of these in the terminal before executing the class or put it in a bash script.
export HADOOP_HEAPSIZE=4096
hadoop test
Or,
export HADOOP_OPTS="$HADOOP_OPTS -Xmx4G"
hadoop test
Or, if the above doesn't work, try modifying HADOOP_OPTS in $HADOOP_HOME/conf/hadoop-env.sh

"Exception in thread 'main'" error with Apache Ant on CentOS 6.4

I'm attempting to run Apache Ant for the purpose of compiling OpenGTS. While attempting to run any "ant" command I'm getting the following output:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/Launcher
Caused by: java.lang.ClassNotFoundException: org.apache.tools.ant.launch.Launcher
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: org.apache.tools.ant.launch.Launcher. Program will exit.
Previously I was getting a message stating "JAVA_HOME is not defined correctly" and after reading several forum threads, was able to solve that by updating the path:
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk
Another thread stated a "CLASS PATH" issue but if I'm able to run "ant" anywhere in the terminal, wouldn't the path be correct? Thanks in advance.
Make sure to set ANT_HOME to the directory where you installed ant. Refer to Installling Apache Ant.
You need to export ANT_HOME too, just make sure it is installed first on your system
export ANT_HOME="/usr/local/ant";
In my case it was a wrong permission on /opt/ant/lib folder.

NoClassDefFoundError without any class name

I am trying to run a java task from ant. I am trying to run the "org.apache.tools.ant.launch.Launcher" class. I keep on getting the "NoClassDefFoundError" without any class name being specified. I am also getting a "ClassNotFoundException" along with that displaying a message "Could not find the main class: . Program will exit". Here's a snippet of the error
[java] Exception in thread "main" java.lang.NoClassDefFoundError:
[java] Caused by: java.lang.ClassNotFoundException:
[java] at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
[java] at java.security.AccessController.doPrivileged(Native Method)
[java] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
[java] at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
[java] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
[java] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
[java] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
[java] Could not find the main class: . Program will exit.
[java] Java Result: 1
Now I am trying to run an ant class from an ant jar and i specifiy the classpath where this class file resides using the "classpathref" attribute, however I still get this message. I checked the ant jar to check the Manifest and the "main" class is specified properly (it's "org.apache.tools.ant.launch.Launcher") . I have exhausted all my resources. Please help ! ! !
ps: My environment is Eclipse on Ubuntu 9.04
Most likely your classpath is misconfigured.
At a minimum the CLASSPATH should include:
ant.jar and ant-launcher.jar
jars/classes for your XML parser
the JDK's required jar/zip files
(from the ant manual)
Also you seem to be relaunching ant in the current directory (executing the same build.xml). Maybe you'll want to set the "dir" property.
It looks like the Ant task is trying to run Java, but is somehow passing an empty string to the JVM as the name of the class to run. I can get the same stacktrace if I run the JVM directly with a quoted empty string:
C:\>java ""
Exception in thread "main" java.lang.NoClassDefFoundError:
Caused by: java.lang.ClassNotFoundException:
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: . Program will exit.
(This is on Windows, but I don't think that makes much of a difference.)
I can only suggest following up on Alexander Pogrebnyak's comment to akf's answer. Perhaps the webtest.lib property has spaces in it?
Also, is there a good reason for calling ant directly via java, rather than using the ant task?
https://blogs.oracle.com/sreekanth/entry/java_lang_noclassdeffounderror_org_codehaus
java.lang.NoClassDefFoundError: org/codehaus/plexus/classworlds/launcher/Launcher
By sreekanth on Nov 23, 2010
Recently when I am trying to run some Maven scripts, I am getting this exception:
Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/plexus/classworlds/launcher/Launcher
Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.classworlds.launcher.Launcher
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: org.codehaus.plexus.classworlds.launcher.Launcher. Program will exit.
After spending some time trying various combinations , I found that this is because I have both M2_HOME and M3_HOME set in my environment variables.Once I removed M2_HOME from my environment variables, I could get this working back again.May be this could save some serious time for some one.
This can be a misleading error that is not actually about a class missing from the classpath. If you are using Tomcat it can be due to missing conf files in $CATALINA_BASE/conf
It could also be a misconfigured ant installation, please check your JAVA_HOME and ANT_HOME env variables or try another ant installation.
Ant launcher expects the following params
java -Dant.home=c:\ant org.apache.tools.ant.launch.Launcher [options] [target]
I am affraid we can't proceed answering you if you don't paste your whole build.xml file.
Just try to give your full sample as below:
<java
classname="org.apache.tools.ant.launch.Launcher"
fork="true"
failonerror="true"
dir="${sub.builddir}"
timeout="4000000"
taskname="startAnt"
>
<classpath>
<pathelement location="${ant.home}/lib/ant-launcher.jar"/>
</classpath>
<arg value="-buildfile"/>
<arg file="${sub.buildfile}"/>
<arg value="-Dthis=this"/>
<arg value="-Dthat=that"/>
<arg value="-Dbasedir=${sub.builddir}"/>
<arg value="-Dthe.other=the.other"/>
<arg value="${sub.target}"/>
</java>
This would be extremely helpful to provide you with a possible misunderstanding.
Hope this helps,
Ernani
From this line:
[java] Could not find the main class: . Program will exit.
it looks as though your call to java.exe is finding a . where it expects a class name. Perhaps you are trying to indicate the classpath on the commandline but are neglecting to preface that with the -cp or -classpath flag.
When in doubt, invoke ant -v and watch all your variable declarations, and the whole commandline sent to Java.
Certain path-like quantities are eagerly evaluated, while others are lazily evaluated. I've had plenty of problems where I used one of the former, when my Ant script intended to create a jar that would be used by a later task. Then by the time I invoked the call, it had already pruned my jar from the classpath.
If I had to make a wild guess, I'd bet your commandline looked something like:
java ... -classpath org.apache.tools.ant.launch.Launcher
instead of
java ... -classpath foo.jar;bar.jar org.apache.tools.ant.launch.Launcher
like you expected
I had a similar problem recently. The culprits were 2 tags under the java task, that didn't have their values set, so they resulted in 2 empty command arguments and in the end in 2 spaces in the command line.
For some reason Unix doesn't handle it right. Both Red Hat 5 and Ubuntu displayed the same error. It was OK on Windows 7.
Setting those arguments to have default dummy values solved the issue.

running rmi server, classnotfound [duplicate]

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=

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