org.netbeans.api.db.explorer.DatabaseException: DERBY SQL error: SQLCODE: -1, SQLSTATE: XJ041, SQLERRMC: Failed to create database '', see the next exception for details.::SQLSTATE: XBM0JDirectory C:\Users\Sunbon\.netbeans-derby\C:\Users\Sunbon\.netbeans-derby already exists.
        at org.netbeans.modules.derby.api.DerbyDatabases.createDatabase(DerbyDatabases.java:251)
        at org.netbeans.modules.derby.RegisterDerby$1.run(RegisterDerby.java:183)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)
java.sql.SQLException: DERBY SQL error: SQLCODE: -1, SQLSTATE: XJ041, SQLERRMC: Failed to create database '', see the next exception for details.::SQLSTATE: XBM0JDirectory C:\Users\Sunbon\.netbeans-derby\C:\Users\Sunbon\.netbeans-derby already exists.
        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.jdbc.ClientDriver.connect(ClientDriver.java:0)
        at org.netbeans.modules.derby.api.DerbyDatabases.createDatabase(DerbyDatabases.java:230)
        at org.netbeans.modules.derby.RegisterDerby$1.run(RegisterDerby.java:183)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)
org.apache.derby.client.am.SqlException: DERBY SQL error: SQLCODE: -1, SQLSTATE: XJ041, SQLERRMC: Failed to create database '', see the next exception for details.::SQLSTATE: XBM0JDirectory C:\Users\Sunbon\.netbeans-derby\C:\Users\Sunbon\.netbeans-derby already exists.
        at org.apache.derby.client.am.Connection.completeSqlca(Connection.java:0)
        at org.apache.derby.client.net.NetConnectionReply.parseRdbAccessFailed(NetConnectionReply.java:0)
        at org.apache.derby.client.net.NetConnectionReply.parseAccessRdbError(NetConnectionReply.java:0)
        at org.apache.derby.client.net.NetConnectionReply.parseACCRDBreply(NetConnectionReply.java:0)
        at org.apache.derby.client.net.NetConnectionReply.readAccessDatabase(NetConnectionReply.java:0)
        at org.apache.derby.client.net.NetConnection.readSecurityCheckAndAccessRdb(NetConnection.java:0)
        at org.apache.derby.client.net.NetConnection.flowSecurityCheckAndAccessRdb(NetConnection.java:0)
        at org.apache.derby.client.net.NetConnection.flowUSRIDONLconnect(NetConnection.java:0)
        at org.apache.derby.client.net.NetConnection.flowConnect(NetConnection.java:0)
        at org.apache.derby.client.net.NetConnection.<init>(NetConnection.java:0)
        at org.apache.derby.client.net.NetConnection40.<init>(NetConnection40.java:0)
        at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(ClientJDBCObjectFactoryImpl40.java:0)
        at org.apache.derby.jdbc.ClientDriver.connect(ClientDriver.java:0)
        at org.netbeans.modules.derby.api.DerbyDatabases.createDatabase(DerbyDatabases.java:230)
        at org.netbeans.modules.derby.RegisterDerby$1.run(RegisterDerby.java:183)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997)