java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at com.mysql.jdbc.ResultSet.checkRowPos(ResultSet.java:719)
at com.mysql.jdbc.ResultSet.getStringInternal(ResultSet.java:5624)
at com.mysql.jdbc.ResultSet.getString(ResultSet.java:5544)
at com.mysql.jdbc.Connection.loadServerVariables(Connection.java:4435)
at com.mysql.jdbc.Connection.initializePropsFromServer(Connection.java:4031)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2762)

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