PDFBOX-5660: use try-with-resources

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1934341 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/font/PDCIDFont.java

@@ -31,7 +31,6 @@
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.cos.COSNumber;
 import org.apache.pdfbox.cos.COSStream;
-import org.apache.pdfbox.io.IOUtils;
 import org.apache.pdfbox.pdmodel.common.COSObjectable;
 import org.apache.pdfbox.util.Vector;
 
@@ -425,9 +424,11 @@ final int[] readCIDToGIDMap() throws IOException
         COSStream stream = dict.getCOSStream(COSName.CID_TO_GID_MAP);
         if (stream != null)
         {
-            InputStream is = stream.createInputStream();
-            byte[] mapAsBytes = is.readAllBytes();
-            IOUtils.closeQuietly(is);
+            byte[] mapAsBytes;
+            try (InputStream is = stream.createInputStream())
+            {
+                mapAsBytes = is.readAllBytes();
+            }
             int numberOfInts = mapAsBytes.length / 2;
             cid2gid = new int[numberOfInts];
             int offset = 0;