NullPointerException when the column value is NULL

[IrfanMusaKhan]

When a column is null, following method in CursorWindow.java has null pointer exception.

E/AndroidRuntime(11321): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'char[] java.lang.String.toCharArray()' on a null object reference
E/AndroidRuntime(11321): at net.zetetic.database.CursorWindow.copyStringToBuffer

    public void copyStringToBuffer(int row, int column, CharArrayBuffer buffer) {
		if (buffer == null) {
			throw new IllegalArgumentException("CharArrayBuffer should not be null");
		}
		// TODO not as optimal as the original code
		char[] chars = getString(row, column).toCharArray(); < ---------- NPE
		buffer.data = chars;
		buffer.sizeCopied = chars.length;
	}

There is another copyStringToBuffer method in AbstractCursor.java which is safer than the one which has NPE.

Tests in AbstractCursorTest.java are ignored without any reason.

[developernotes]

Hi @IrfanMusaKhan,

Thank you for this report, we will look into adjusting this for the next public release.