fix for bug 50217, NPE in ftp chmod

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1032188 13f79535-47bb-0310-9956-ffa450edef68

CONTRIBUTORS

@@ -269,6 +269,7 @@ Philip Hourihane
 Phillip Wells
 Pierre Delisle
 Pierre Dittgen
+riasol
 R Handerson
 Rami Ojares
 Randy Watler

WHATSNEW

@@ -192,6 +192,9 @@ Fixed bugs:
    provided using non-fileset resource collections.
    Bugzilla Issue 50115.
 
+*  ftp chmod could throw a NPE.
+   Bugzilla report 50217.
+
 Other changes:
 --------------
 

contributors.xml

@@ -1468,4 +1468,8 @@
     <first>Zdenek</first>
     <last>Wagner</last>
   </name>
+  <name>
+    <first/>
+    <last>riasol</last>
+  </name>
 </contributors>

src/main/org/apache/tools/ant/taskdefs/optional/net/FTP.java

@@ -2102,7 +2102,7 @@ public class FTP extends Task implements FTPTaskConfig {
             myReply = ftp.getReplyStrings();
 
             for (int x = 0; x < myReply.length; x++) {
-                if (myReply[x].indexOf("200") == -1) {
+                if (myReply[x] != null && myReply[x].indexOf("200") == -1) {
                     log(myReply[x], Project.MSG_WARN);
                 }
             }