factor out close logic. This changes

semantics slightly was we no longer raise an IOE
if file closure fails.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277011 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java

@@ -34,6 +34,7 @@ import org.apache.tools.ant.Task;
 import org.apache.tools.ant.types.FileSet;
 import org.apache.tools.ant.util.DOMElementWriter;
 import org.apache.tools.ant.util.StringUtils;
+import org.apache.tools.ant.util.FileUtils;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.xml.sax.SAXException;
@@ -200,13 +201,8 @@ public class XMLResultAggregator extends Task implements XMLConstants {
                 throw new IOException("Error while writing DOM content");
             }
         } finally {
-            if (wri != null) {
-                wri.close();
-                out = null;
-            }
-            if (out != null) {
-                out.close();
-            }
+            FileUtils.close(wri);
+            FileUtils.close(out);
         }
     }