I am using hsqldb version 2.2.5 in my application sometimes I am getting

org.hsqldb.HsqlException: data exception: string data, right truncation.

So I want to know what are the possible reasons for that. I am not inserting any data like longvarchar in a varchar column.

http://sourceforge.net/tracker/index.php?func=detail&aid=2993445&group_id=23316&atid=378131

I searched above link but could not get proper feedback.

Given below the exception stack This exception is not happening frequently.

So what could be the reason for that and how to set the data type length in script file to increase at run time ? 

java.sql.SQLException: data exception: string data, right truncation
    at org.hsqldb.jdbc.Util.sqlException(Util.java:255)
    at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(JDBCPreparedStatement.java:4659)
    at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(JDBCPreparedStatement.java:311)
    at com.dikshatech.agent.db.NodesRuntimeTable.persistData(NodesRuntimeTable.java:151)
    at com.dikshatech.agent.jobs.WorkFlowJob.execute(WorkFlowJob.java:108)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:549)
Caused by: org.hsqldb.HsqlException: data exception: string data, right truncation
    at org.hsqldb.error.Error.error(Error.java:134)
    at org.hsqldb.error.Error.error(Error.java:104)
    at org.hsqldb.types.CharacterType.castOrConvertToType(CharacterType.java:523)
    at org.hsqldb.types.CharacterType.convertToType(CharacterType.java:638)
    at org.hsqldb.StatementDML.getInsertData(StatementDML.java:921)
    at org.hsqldb.StatementInsert.getResult(StatementInsert.java:124)
    at org.hsqldb.StatementDMQL.execute
hsqldb
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