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ZIP file must have at least one entry
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java.util.zip.ZipException: ZIP file must have at least one entry	at java.util.zip.ZipOutputStream.finish(ZipOutputStream.java:292)	at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:141)	at java.util.zip.ZipOutputStream.close(ZipOutputStream.java:311)	at sun.plugin.cache.CachedJarLoader.decompress(CachedJarLoader.java:432)	at sun.plugin.cache.CachedJarLoader.access$500(CachedJarLoader.java:53)	at sun.plugin.cache.CachedJarLoader$5.run(CachedJarLoader.java:335)	at java.security.AccessController.doPrivileged(Native Method)	at sun.plugin.cache.Cache.privileged(Cache.java:219)	at sun.plugin.cache.CachedJarLoader.download(CachedJarLoader.java:320)	at sun.plugin.cache.CachedJarLoader.load(CachedJarLoader.java:128)	at sun.plugin.cache.JarCache.get(JarCache.java:172)	at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(CachedJarURLConnection.java:93)	at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(CachedJarURLConnection.java:78)	at sun.misc.URLClassPath$JarLoader.getJarFile(URLClassPath.java:580)	at sun.misc.URLClassPath$JarLoader.(URLClassPath.java:541)	at sun.misc.URLClassPath$3.run(URLClassPath.java:319)	at java.security.AccessController.doPrivileged(Native Method)	at sun.misc.URLClassPath.getLoader(URLClassPath.java:308)	at sun.misc.URLClassPath.getLoader(URLClassPath.java:285)	at sun.misc.URLClassPath.getResource(URLClassPath.java:155)	at java.net.URLClassLoader$1.run(URLClassLoader.java:190)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:186)	at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:134)	at sun.plugin.security.PluginClassLoader.findClass(PluginClassLoader.java:168)	at java.lang.ClassLoader.loadClass(ClassLoader.java:299)	at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:114)	at java.lang.ClassLoader.loadClass(ClassLoader.java:255)	at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:501)	at sun.applet.AppletPanel.createApplet(AppletPanel.java:567)	at sun.plugin.AppletViewer.createApplet(AppletViewer.java:1778)	at sun.applet.AppletPanel.runLoader(AppletPanel.java:496)	at sun.applet.AppletPanel.run(AppletPanel.java:293)	at java.lang.Thread.run(Thread.java:536)