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Error: Could not find or load main class InputAddress; Caused by: java.lang.NoClassDefFoundError: inputaddress/InputAddress (wrong name: <filename> ) [duplicate]

I wrote a java program to test RESTful web services by using Netbeans7.0.1 and it works fine there. Now I wrote the build.xml file to compile the code and when I try to run the generated .class file I always got this exception:
Exception in thread "main" java.lang.NoClassDefFoundError: ClientREST (wrong name: clientrest/ClientREST)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: ClientREST. Program will exit.
The name and path are correct, so any thoughts why I'm getting this exception?

Exception in thread "main" java.lang.NoClassDefFoundError: ClientREST
So, you ran it as java ClientREST. It's expecting a ClientREST.class without any package.
(wrong name: clientrest/ClientREST)
Hey, the class is trying to tell you that it has a package clientrest;. You need to run it from the package root on. Go one folder up so that you're in the folder which in turn contains the clientrest folder representing the package and then execute java clientrest.ClientREST.
You should not go inside the clientrest package folder and execute java ClientREST.

I encountered this error using command line java:
java -cp stuff/src/mypackage Test
where Test.java resides in the package mypackage.
Instead, you need to set the classpath -cp to the base folder, in this case, src, then prepend the package to the file name.
So it will end up looking like this:
java -cp stuff/src mypackage.Test

To further note on Garry's reply: The class path is the base directory where the class itself resides. So if the class file is here -
/home/person/javastuff/classes/package1/subpackage/javaThing.class
You would need to reference the class path as follows:
/home/person/javastuff/classes
So to run from the command line, the full command would be -
java -cp /home/person/javastuff/classes package1/subpackage/javaThing
i.e. the template for the above is
java_executable -cp classpath the_class_itself_within_the_class_path
That's how I finally got mine to work without having the class path in the environment

Probably the location you are generating your classes in doesnt exists on the class path. While running use the jvm arg -verbose while running and check the log whether the class is being loaded or not.
The output will also give you clue as to where the clasess are being loaded from, make sure that your class files are present in that location.

Try the below syntax:
Suppose java File resides here: fm/src/com/gsd/FileName.java
So you can run using the below syntax:
(Make current directory to 'fm')
java src.com.gsd.FileName

Suppose you have class A
and a class B
public class A{
public static void main(String[] args){
....
.....
//creating classB object
new classB();
}
}
class B{
}
this issue can be resolved by moving class B inside of class A and using static keyword
public class A{
public static void main(String[] args){
....
.....
//creating class B
new classB();
static class B{
}
}

Here is my class structure
package org.handson.basics;
public class WithoutMain {
public static void main() {
System.out.println("With main()...");
}
}
To compile this program, I had to use absolute path. So from src/main/java I ran:
javac org/handson/basics/WithoutMain.java
Initially I tried with the below command from basics folder and it didn't work
basics % java WithoutMain
Error: Could not find or load main class WithoutMain
Caused by: java.lang.NoClassDefFoundError: org/handson/basics/WithoutMain (wrong name: WithoutMain)
Later I went back to src\main\java folder and ran the class with relevant package structure, which worked as expected.
java % java org.handson.basics.WithoutMain
With main()...

I also have encountered this error on Windows when using Class.forName() where the class name I use is correct except for case.
My guess is that Java is able to find the file at the path (because Windows paths are case-insensitive) but the parsed class's name does not match the name given to Class.forName().
Fixing the case in the class name argument fixed the error.

Axis Client gsoap Server

I already have a C++ server containing a service that inserts an user to the DB, the service work's great when I test it on console.
But the fact is that I'm developing a Java client application that consumes the service with Apache Axis, unfortunately it doesn't works. I have been searching for information that could help me with this trouble but I don't see any similar implementation.
My Apache Axis files are in /usr/share/java, which is the value of my AXIS2_HOME variable, this, in order to execute:
java -cp $AXIS2_HOME org.apache.axis.wsdl.WSDL2Java -p CrearAlumno http://localhost/CrearAlumno.wsdl
to generate the files, later I execute:
javac -cp $AXIS2_HOME *.java
to compile my files Including the Client Class
//CrearAlumnoClient.java
package CrearAlumno;
import java.rmi.RemoteException;
import javax.xml.rpc.ServiceException;
public class CrearAlumnoClient{
public static void main(String[] args)
{
Input in = new Input("asdf", "adgfsdf", "asdg", 453, "asdf", "asdfasdf", "pasdfsd", "asdfsd");
try{
CrearAlumno_Service service = new CrearAlumno_ServiceLocator();
CrearAlumnoPortType port = service.getCrearAlumno();
String response = port.getInfo(in);
}catch(RemoteException e){
e.printStackTrace();
}catch(ServiceException e){
e.printStackTrace();
}
}
}
but when I excecute:
java CrearAlumno.CrearAlumnoClient
My application throws this errors:
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/rpc/ServiceException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: javax.xml.rpc.ServiceException
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 7 more
I have no idea how to solve this errors, I have been searching for an implementation but at this moment, I dont have it.
I will also be pleased if anyone can show me a simply implementation of Axis and gsoap.
Thank you for your attention :).

This looks like a simple case of your classpath not being set up correctly.
There's information on that specific topic here: http://axis.apache.org/axis/java/install.html#Classpath_setup
You need to ensure that the jar file containing javax.xml.rpc.ServiceException is present.
I see you are setting up your classpath using -cp $AXIS2_HOME which won't work. At best if your jars are in $AXIS2_HOME then you will need to do $AXIS2_HOME/*.jar but it all liklihood you'll need to have something more like:
set AXIS_HOME=/usr/axis
set AXIS_LIB=$AXIS_HOME/lib
set AXISCLASSPATH=$AXIS_LIB/axis.jar:$AXIS_LIB/commons-discovery.jar:
$AXIS_LIB/commons-logging.jar:$AXIS_LIB/jaxrpc.jar:$AXIS_LIB/saaj.jar:
$AXIS_LIB/log4j-1.2.8.jar:$AXIS_LIB/xml-apis.jar:$AXIS_LIB/xercesImpl.jar:
$AXIS_LIB/wsdl4j.jar
export AXIS_HOME; export AXIS_LIB; export AXISCLASSPATH
Then invoke your application with:
java -cp $AXISCLASSPATH
With regards to integration between Axis and Gsoap it really should be quite straightforward. There shouldn't really be any special interventions required because you're crossing between java and c world - at least for simple use-cases.

My Linked List (with generics) program compiles fine, but when I run it I am getting a class not found exception. Can someone help me?

I am trying to run my linked list in a main method, but for some reason I keep getting the following output from my terminal
Exception in thread "main" java.lang.NoClassDefFoundError: PhoneBook/java
Caused by: java.lang.ClassNotFoundException: PhoneBook.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)
Below I have listed the part of my class where I run the main method. Everything compiles fine, but when I run it I get that exception. Is there away I can try/catch the exception? Or is there something I am doing wrong?
import java.util.LinkedList;
public class PhoneBook<T> extends LinkedList<T>{
/**
* Creates two books, adds a person to each book, then prints out if it
* found the perons in the book.
**/
public static void main(String[] args){
PhoneBook<String> bookOne = new PhoneBook<String>();
PhoneBook<Integer> bookTwo = new PhoneBook<Integer>();
bookOne.addPerson("Obama");
System.out.print(bookOne.findPerson("Obama"));
bookTwo.addPerson(192590594);
System.out.print(bookTwo.findPerson(192590594));
}
If more information from my class is needed, I can provide it. I don't think it should be necessary because it compiled fine.

After compiling with javac PhoneBook.java are you launching it using
java PhoneBook or java PhoneBook.java ? (it should be the former not
the latter). ~Charlie
Thanks Charlie, that was it.

Exception in thread "main" java.lang.NoClassDefFoundError: =

I created a new maven project in Eclipse and on runtime I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: =
Caused by: java.lang.ClassNotFoundException: =
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: =. Program will exit.
In other threads the class is mentioned where the problem occurs but here it simply says nothing.
The code is also used in a different project (with slight tweaks in terms of calling a method) but the rest of it is same.
If anyone can help me resolve this issue..it will be highly appreciated.

It looks like something is passing in = as the class name. It doesn't say nothing - it says =.
For example, when I run:
java =
I get:
Error: Could not find or load main class =
There's no colon, but it's otherwise the same.
Look at where you're trying to specify the class name, and see whether there's a stray = around. For example, suppose you had:
java -Dfoo = bar ClassName
instead of
java -Dfoo=bar ClassName
You'd see the same thing. I'm not familiar with Maven, but if you ever specify a set of arguments in it, I'd look at that part of the configuration file.

Deleting the workspace worked for me.

java.lang.NoClassDefFoundError: Could not initialize class java.net.ProxySelector

I'm running into a problem with a java app constantly throwing:
java.lang.NoClassDefFoundError: Could not initialize class java.net.ProxySelector.
I am running Suse Linux 10.3 and running java 1.6.0. My CLASSPATH is set to
/usr/lib/jvm/jre-1.6.0-openjdk/lib.
No other users seem to be having this error so I'm assuming its my setup. For those wondering the app is yamj (http://code.google.com/p/moviejukebox/)
Any ideas as to what maybe missing or what I maybe doing wrong?
Edit the full trace of the error is as follows:
java.lang.NoClassDefFoundError: Could not initialize class java.net.ProxySelector
at sun.net.www.protocol.http.HttpURLConnection$5.run(HttpURLConnection.java:736)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:732)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:672)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:997)
at com.moviejukebox.thetvdb.tools.XMLHelper.getEventReader(XMLHelper.java:19)
at com.moviejukebox.thetvdb.model.Mirrors.(Mirrors.java:30)
at com.moviejukebox.thetvdb.TheTVDB.(TheTVDB.java:37)
at com.moviejukebox.plugin.TheTvDBPlugin.(TheTvDBPlugin.java:57)
at sun.reflect.GeneratedConstructorAccessor2.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at com.moviejukebox.plugin.DatabasePluginController.getMovieDatabasePlugin(DatabasePluginController.java:96)
at com.moviejukebox.plugin.DatabasePluginController.access$000(DatabasePluginController.java:30)
at com.moviejukebox.plugin.DatabasePluginController$1.initialValue(DatabasePluginController.java:44)
at com.moviejukebox.plugin.DatabasePluginController$1.initialValue(DatabasePluginController.java:39)
at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:160)
at java.lang.ThreadLocal.get(ThreadLocal.java:150)
at com.moviejukebox.plugin.DatabasePluginController.scan(DatabasePluginController.java:70)
at com.moviejukebox.MovieJukebox.updateMovieData(MovieJukebox.java:1051)
at com.moviejukebox.MovieJukebox.access$100(MovieJukebox.java:80)
at com.moviejukebox.MovieJukebox$4.call(MovieJukebox.java:613)
at com.moviejukebox.MovieJukebox$4.call(MovieJukebox.java:600)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java

ProxySelector is an abstract class. Are you trying to instantiate it directly?

My CLASSPATH is set to
/usr/lib/jvm/jre-1.6.0-openjdk/lib.
don't think that should be in your CLASSPATH
try clearing the CLASSPATH and running it

Firstly, you shouldn't have to put "/usr/lib/jvm/jre-1.6.0-openjdk/lib" on your classpath. The "java" command should put all of the standard J2SE libraries on the bootclasspath without you doing anything.
Second, it would help if you gave us the full stacktrace, not just the exception message. I suspect that the real problem is that java.net.ProxySelector (or something it depends on) is failing during static initialization. But only a stacktrace would confirm that.

Since it's second result in google search on this error, I want to post this piece of code I found at some forum that helped me with the same exception. Cannot explain in details - it was just a quick test project for me, so I didn't have time for deeper investigation.
static {
try {
Class c = Class.forName("sun.net.spi.DefaultProxySelector");
if (c != null && ProxySelector.class.isAssignableFrom(c)) {
theProxySelector = (ProxySelector) c.newInstance();
}
} catch (Exception e) {
theProxySelector = null;
}
}