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java.lang.IllegalStateException: zip file closed	at java.util.zip.ZipFile.ensureOpen(ZipFile.java:669)	at java.util.zip.ZipFile.getEntry(ZipFile.java:309)	at java.util.jar.JarFile.getEntry(JarFile.java:240)	at java.util.jar.JarFile.getJarEntry(JarFile.java:223)	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1005)	at sun.misc.URLClassPath.getResource(URLClassPath.java:212)	at java.net.URLClassLoader$1.run(URLClassLoader.java:365)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at com.redhat.ceylon.launcher.CeylonClassLoader.loadClass(CeylonClassLoader.java:208)	at java.lang.ClassLoader.loadClass(ClassLoader.java:411)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1380)	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1344)	at java.lang.Thread.run(Thread.java:745)