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sealing violation: package org.lwjgl.openal is sealed
java.lang.SecurityException: sealing violation: package oracle.jdbc is sealed	at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at org.jetel.util.classloader.GreedyURLClassLoader.loadClassGreedy(GreedyURLClassLoader.java:131)	at org.jetel.util.classloader.GreedyURLClassLoader.loadClass(GreedyURLClassLoader.java:111)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at org.jetel.connection.jdbc.DBConnectionImpl.getResultSetType(DBConnectionImpl.java:762)	at org.jetel.component.DBExecute.initStatements(DBExecute.java:492)	at org.jetel.component.DBExecute.preExecute(DBExecute.java:436)	at org.jetel.graph.Node.run(Node.java:476)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)	at java.lang.Thread.run(Thread.java:662)