PDFBOX-5660: Sonar fix

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1924912 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

examples/src/main/java/org/apache/pdfbox/examples/util/PDFHighlighter.java

@@ -113,7 +113,7 @@ protected void endPage( PDPage pdPage ) throws IOException
         // Traitement des listes à puces (caractères spéciaux)
         if (page.indexOf('a') != -1)
         {
-            page = page.replaceAll("a[0-9]{1,3}", ".");
+            page = page.replaceAll("a\\d{1,3}", ".");
         }
         for (String searchedWord : searchedWords)
         {

pdfbox/src/main/java/org/apache/pdfbox/cos/COSNumber.java

@@ -84,7 +84,7 @@ public static COSNumber get( String number ) throws IOException
             // check if the given string could be a number at all
             String numberString = number.startsWith("+") || number.startsWith("-")
                     ? number.substring(1) : number;
-            if (!numberString.matches("[0-9]*"))
+            if (!numberString.matches("\\d*"))
             {
                 throw new IOException("Not a number: " + number);
             }