Building "Jeckers"
java.util.zip.ZipException: duplicate entry: Jeckers.class
	at java.util.zip.ZipOutputStream.putNextEntry(ZipOutputStream.java:175)
	at java.util.jar.JarOutputStream.putNextEntry(JarOutputStream.java:90)
	at sun.tools.jar.Main.addFile(Main.java:683)
	at sun.tools.jar.Main.create(Main.java:437)
	at sun.tools.jar.Main.run(Main.java:160)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.sun.kvem.ktools.Jar.jar(Unknown Source)
	at com.sun.kvem.ktools.Build.doJar(Unknown Source)
	at com.sun.kvem.ktools.Build.jar(Unknown Source)
	at com.sun.kvem.ktools.Build.build(Unknown Source)
	at com.sun.kvem.ktools.Main.run(Unknown Source)
	at com.sun.kvem.toolbar.MainWindow$CompilerThread.run(Unknown Source)
com.sun.kvem.ktools.ExecutionException
Build failed