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java.lang.NullPointerException: 	at oracle.javatools.db.jdbc.JdbcDDLDatabase.registerBuilders(JdbcDDLDatabase.java:389)	at oracle.javatools.db.AbstractDatabase.(AbstractDatabase.java:93)	at oracle.javatools.db.ddl.DDLDatabase.(DDLDatabase.java:49)	at oracle.javatools.db.jdbc.JdbcDDLDatabase.(JdbcDDLDatabase.java:59)	at oracle.javatools.db.sybase.AdaptiveServerDatabaseImpl.(AdaptiveServerDatabaseImpl.java:107)	at oracle.javatools.db.sybase.AdaptiveServerAnywhereDatabaseImpl.(AdaptiveServerAnywhereDatabaseImpl.java:148)	at oracle.javatools.db.sybase.AdaptiveServerDatabaseFactory.createDatabaseImpl(AdaptiveServerDatabaseFactory.java:42)	at oracle.javatools.db.DatabaseFactory.createDatabaseImpl(DatabaseFactory.java:299)	at oracle.javatools.db.DatabaseFactory.createDatabase(DatabaseFactory.java:272)	at oracle.jdeveloper.db.DatabaseConnections.getDatabase(DatabaseConnections.java:795)	at oracle.dbtools.raptor.utils.Connections$ConnectionInfo.getDatabase(Connections.java:172)	at oracle.dbtools.raptor.utils.Connections.getConnection(Connections.java:1157)	at oracle.dbtools.raptor.utils.Connections.getConnection(Connections.java:1131)	at oracle.dbtools.raptor.navigator.db.DatabaseConnection.openConnectionImpl(DatabaseConnection.java:117)	at oracle.dbtools.raptor.navigator.db.AbstractConnectionNode.getConnection(AbstractConnectionNode.java:30)	at oracle.dbtools.raptor.navigator.db.impl.DatabaseTreeNode.getObjectFactory(DatabaseTreeNode.java:77)	at oracle.dbtools.raptor.navigator.db.impl.DatabaseTreeNode$LoadTask.doWork(DatabaseTreeNode.java:128)	at oracle.dbtools.raptor.navigator.db.impl.DatabaseTreeNode$LoadTask.doWork(DatabaseTreeNode.java:102)	at oracle.dbtools.raptor.backgroundTask.RaptorTask.call(RaptorTask.java:193)	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)	at java.util.concurrent.FutureTask.run(FutureTask.java:166)	at oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$RaptorFutureTask.run(RaptorTaskManager.java:533)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)	at java.util.concurrent.FutureTask.run(FutureTask.java:166)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:722)