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This bug was originally marked as duplicate of bug 240557, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0.1 (Build 201408251540) VM: Java HotSpot(TM) Client VM, 25.11-b03, Java(TM) SE Runtime Environment, 1.8.0_11-b12 OS: Windows 7 User Comments: GUEST: ?????? netbeans Stacktrace: java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(ZipFile.java:0) at java.util.zip.ZipFile.<init>(ZipFile.java:220) at java.util.zip.ZipFile.<init>(ZipFile.java:150) at java.util.jar.JarFile.<init>(JarFile.java:166) at java.util.jar.JarFile.<init>(JarFile.java:145) at org.netbeans.JarClassLoader$JarSource$1.call(JarClassLoader.java:524)
Created attachment 149128 [details] stacktrace
You seem to have corrupted JAR file(s) in your installation. Can you please check if they are really corrupted? E.g. try to open them as ZIP files? If they are corrupted, then the question is how they got to your computer? After installation? After an update? Please tell us and reopen this bug!