There is SQLException java.lang.NullPointerException when moveToInsertRow() method called.
rsStock.moveToInsertRow();
rsStock.updateInt(1, 1);
rsStock.updateInt(2, 1);
rsStock.insertRow();
rsStock.moveToCurrentRow();
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`rsStock` is `null`, 100%. We cannot tell you why, debug your code and post relevant parts please. – Maroun Sep 15 '14 at 06:40
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check why rsStock could be null. java.lang.NullPointerException is not an SQLException. – BatScream Sep 15 '14 at 06:41
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Post the stack trace. Unclear what you mean by 'null CachedRowSet'. Do you mean *empty* CachedRowSet? – user207421 Sep 11 '15 at 22:10