Fix : Ubuntu Boot error – Boot device not found (after partitioning)
Problem: Ubuntu gives the message “Boot device not found” after partitioning using Gparted (done from a usb instance). Reason : Unknown. Could be th...
Category: Notes
Hibernate calls hang after giving message “opening JDBC connection”
Bug: Hibernate calls hang after giving the message “opening JDBC connection” in the logs. No exception/error message is thrown. Reason: Connection t...
Hibernate Gives Connection Pool Error: Timeout waiting for idle object
Bug: Hibernate connection times out (after the maxWait duration set for the datasource), and gives error message in the log – “Timeout waiting for i...
ClassCastException for same class on slim3 for Google App Engine
Bug: A class cast exception like the following is thrown – class x.y.z.MyClass cannot be cast to class x.y.z.MyClass Reason: The class loaders for both th...
jqGrid cell data disappears on clicking other cells
Bug: jqGrid cell data in a previously edited cell disappears on editing other rows. This usually occurs after a cell or row value is edited programmatically. Re...
Solution to Hibernate error: Unknown column ‘******’ in ‘order clause’
Bug: A above exception thrown when using hibernate. Reason: This error occurs usually because of a misplaced “order by” clause. If in a many to many...
Solution to MySQLSyntaxErrorException: Unknown column ‘xxxxx_.elt’ in ‘field list’
Bug: The above exception thrown when using hibernate. Reason: This usually occurs when column name is not mentioned in many-to-many node. The correct mapping fo...
Error: attribute property is mandatory for tag authentication
Bug: The exception thrown when migrating to spring 3. Reason: This exception thrown when migrating to spring-security 3 occurs due to spring 3 (authentication ...
Solve MySQL ERROR 1005: Can’t create table (errno: 150)
Bug: Above error occurs when rebuilding a database from the SQL script. Reason: This error usually occurs when the table being created cannot fulfill a foreign ...