ExceptionInInitializerError when trying to run sikuli from Eclipse using JAVA

Java 7?

Java 6

Ok, then it might be, that the Eclipse-outside environment is not used, when you run your app from inside Eclipse.

Look for the corresponding option in your project settings: use/copy system environment

what kind of project settings need to be changed?can you specify steps also.It will be of great help

I have Eclipse Indigo:

-> Project Properties
-> Run/Debug Settings
-> edit your LaunchConfiguration
-> tab Environment

at the bottom "Append ....." must be selected.

If this is the case, the you can try to add to your environment:

SIKULI_HOME as
C:\Program Files\Sikuli X\

(WITH trailing \)

Configured Run/Debug settings.but,Still facing the same exception

What about specifying SIKULI_HOME ???

Added the SIKULI_HOME to Environment variables as you suggested.but still facing the same problem.

Are you using the Junit feature of Eclipse?

Just run this snippet as normal Java application:

import org.sikuli.script.*;

public class Test {

 /**
  * @param args
  */
 public static void main(String[] args) throws FindFailed{
  Screen s = new Screen(0);
  System.out.println(s.userCapture());
                new Win32Util;
 }
}

This should display the capture prompt on the primary screen. After making a selection, the program should end without errors

I tried running given snippet,it is throwing the following exception.

Exception in thread "main" java.lang.ExceptionInInitializerError
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Unknown Source)
 at org.sikuli.script.Env.getOSUtil(Env.java:91)
 at org.sikuli.script.ScreenHighlighter.init(ScreenHighlighter.java:180)
 at org.sikuli.script.ScreenHighlighter.<init>(ScreenHighlighter.java:293)
 at org.sikuli.script.Screen.initBounds(Screen.java:105)
 at org.sikuli.script.Screen.<init>(Screen.java:98)
 at Ex.main(Ex.java:9)
Caused by: java.lang.NullPointerException
 at com.wapmx.nativeutils.jniloader.DefaultJniExtractor.extractResource(DefaultJniExtractor.java:125)
 at com.wapmx.nativeutils.jniloader.DefaultJniExtractor.extractJni(DefaultJniExtractor.java:110)
 at com.wapmx.nativeutils.jniloader.NativeLoader.loadLibrary(NativeLoader.java:43)
 at org.sikuli.script.Win32Util.<clinit>(Win32Util.java:19)
 ... 8 more

When compiler tries to create Screen object,it is throwing this exception.

The crashing line in DefaultJniExtractor.java is:
InputStream in = this.getClass().getClassLoader().getResourceAsStream(resourcename);

where resource name should contain: Win32Util.dll

I have no idea, why this happens in your situation, but I doubt that it has something to do with Sikuli itself.
Usually NullPointerExceptions are caused by programming flaws, but I cannot see any here.

On my Win 7 (I do not have Eclipse on it) running the above snippet with
javac and java
gives no problems.

So it is not possible for me, to debug this further, sorry.

I Switched to different version of eclipse,and it solved my problem.Previously i was using Eclipse galileo which has android plug-in installed in it.when i was trying to run sikuli from this eclipse i was getting the above mentioned exception.Then i switched to Eclipse galileo without android plug-in and to my surpise it resolved the issue.I'm not sure of cause for this exception.

Thanks to RaiMan.Hope it will help someone.

I was get ExceptionInInitializerError when trying to run sikuli from IntelliJ using JAVA. I was able to fix it by running intelliJ as administrator. See if that helps.