factor out close logic

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277010 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -35,6 +35,7 @@ import junit.framework.Test;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.util.DOMElementWriter;
 import org.apache.tools.ant.util.DateUtils;
+import org.apache.tools.ant.util.FileUtils;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Text;
@@ -158,13 +159,7 @@ public class XMLJUnitResultFormatter implements JUnitResultFormatter, XMLConstan
                 throw new BuildException("Unable to write log file", exc);
             } finally {
                 if (out != System.out && out != System.err) {
-                    if (wri != null) {
-                        try {
-                            wri.close();
-                        } catch (IOException e) {
-                            // ignore
-                        }
-                    }
+                    FileUtils.close(wri);
                 }
             }
         }