DataMatrix: check negative textSize

DEVSIX-1845

Author: pavel-alay

barcodes/src/main/java/com/itextpdf/barcodes/BarcodeDataMatrix.java

@@ -342,7 +342,7 @@ public int setCode(byte[] text, int textOffset, int textSize) {
         if (textOffset < 0) {
             throw new IndexOutOfBoundsException("" + textOffset);
         }
-        if (textOffset + textSize > text.length) {
+        if (textOffset + textSize > text.length || textOffset + textSize < 0) {
             throw new IndexOutOfBoundsException("" + textSize);
         }
         int extCount, e, k, full;

barcodes/src/test/java/com/itextpdf/barcodes/BarcodeDataMatrixTest.java

@@ -252,4 +252,14 @@ public void barcode13Test() {
         byte[] str = "AbcdFFghijklmnop".getBytes();
         barcodeDataMatrix.setCode(str, 0, str.length + 1);
     }
+
+    @Test
+    public void barcode14Test() {
+        junitExpectedException.expect(IndexOutOfBoundsException.class);;
+        BarcodeDataMatrix barcodeDataMatrix = new BarcodeDataMatrix();
+        barcodeDataMatrix.setWidth(18);
+        barcodeDataMatrix.setHeight(18);
+        byte[] str = "AbcdFFghijklmnop".getBytes();
+        barcodeDataMatrix.setCode(str, 0, -1);
+    }
 }