Only delete the target file when it is in fact a file - don't

delete directories.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269282 13f79535-47bb-0310-9956-ffa450edef68

src/etc/testcases/taskdefs/copyfile.xml

@@ -25,6 +25,7 @@
   </target>
 
   <target name="test6">
+    <delete file="testdir"/>
     <mkdir dir="testdir" />
     <copyfile src="copyfile.xml" 
               dest="testdir"

src/main/org/apache/tools/ant/Project.java

@@ -755,7 +755,7 @@ public class Project {
         if (overwrite || !destFile.exists() ||
             destFile.lastModified() < sourceFile.lastModified()) {
 
-            if (destFile.exists()) {
+            if (destFile.exists() && destFile.isFile()) {
                 destFile.delete();
             }
 

src/testcases/org/apache/tools/ant/taskdefs/CopyfileTest.java

@@ -102,9 +102,4 @@ public class CopyfileTest extends TaskdefsTest {
             fail("Copy failed");
         }
     }
-/*
-    public void test6() { 
-        expectBuildException("test6", "target is directory");
-    }
-*/
 }