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    java.lang.NullPointerException
        at org.apache.derby.impl.drda.DDMWriter.maxEncodedLength(Unknown Source)
        at org.apache.derby.impl.drda.DDMWriter.writeString(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.writeSQLCAGRP(Unknown Source)
        at org.apache.derby.impl.drda.DRDAConnThread.writeSQLCARD(Unknown Source)
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