java.lang.ClassNotFoundException: org.apache.derby.catalog.types.IndexDescriptorImpl
   at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
   at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
   at java.lang.Class.forName0(Class.java:0)
   at java.lang.Class.forName(Class.java:340)
   at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:626)
   at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1613)
   at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
   at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
Caused: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.IndexDescriptorImpl
   at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:0)
   at org.apache.derby.client.am.Cursor.getObject(Cursor.java:0)
   at org.apache.derby.client.am.ResultSet.getObjectX(ResultSet.java:0)
Caused: java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.IndexDescriptorImpl
   at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:0)
   at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:0)
   at org.apache.derby.client.am.ResultSet.getObject(ResultSet.java:0)
   at org.netbeans.modules.db.dataview.util.DBReadWriteHelper.readResultSet(DBReadWriteHelper.java:277)
   at org.netbeans.modules.db.dataview.output.SQLExecutionHelper.loadDataFrom(SQLExecutionHelper.java:775)
   at org.netbeans.modules.db.dataview.output.SQLExecutionHelper.access$800(SQLExecutionHelper.java:84)
   at org.netbeans.modules.db.dataview.output.SQLExecutionHelper$1Loader.run(SQLExecutionHelper.java:173)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)