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java.lang.UnsupportedOperationException: null	at java.util.Collections$UnmodifiableMap.remove(Unknown Source)	at java.util.jar.Attributes.remove(Unknown Source)	at com.sun.deploy.cache.CachedJarFile.getManifest(Unknown Source)	at$JarLoader$2.getManifest(Unknown Source)	at Source)	at$100(Unknown Source)	at$ Source)	at$ Source)	at Method)	at Source)	at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at com.sun.jnlp.JNLPClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)