#127 BufferOverflowException

[Phil]

Hi,

Jackcess crash with a BufferOverflowException when inserting/updating a row with more than 4060 bytes of data :

Exception in thread "main" java.nio.BufferOverflowException
    at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:206)
    at com.healthmarketscience.jackcess.impl.TableImpl.createRow(TableImpl.java:2151)
    at com.healthmarketscience.jackcess.impl.TableImpl.createRow(TableImpl.java:2035)
    at com.healthmarketscience.jackcess.impl.TableImpl.addRows(TableImpl.java:1568)
    at com.healthmarketscience.jackcess.impl.TableImpl.addRow(TableImpl.java:1461)
    at com.healthmarketscience.jackcess.impl.TableImpl.addRowFromMap(TableImpl.java:1469)
    at BufferOverflowException.main(BufferOverflowException.java:47)

I isolated the problem in the java class attached to this bug.

To reproduce it's simple : create a table with 20 TEXT columns each filled with more than 101 chars (2 bytes / char).

The problem is because the variable maxRowSize become negative (Class TableImpl, ligne 2145) so the buffer has no more space available (overflow).

[James Ahlborn]

Just FYI, i can make the exception prettier, but it's going to fail regardless. An access database has a maximum row size, and you are exceeding it.

[James Ahlborn]

The exception will now be an IOException with an appropriate message. Fixed in trunk, will be in the 2.1.3 release.