NPE when when <presetdef> tries to configure a task that

cannot be instantiated.
PR:  33689
Reported by: Steve Loughran


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277704 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -328,6 +328,9 @@ Fixed bugs:
 * <zip> couldn't store files with size between 2GB and 4GB (the
   upper limit set by the ZIP format itself).  Bugzilla Report 33310.
 
+* NPE when when <presetdef> tries to configure a task that
+  cannot be instantiated. Bugzilla Report 33689.
+
 Changes from Ant 1.6.1 to Ant 1.6.2
 ===================================
 

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

@@ -404,6 +404,11 @@ public class UnknownElement extends Task {
         if (o instanceof PreSetDef.PreSetDefinition) {
             PreSetDef.PreSetDefinition def = (PreSetDef.PreSetDefinition) o;
             o = def.createObject(ue.getProject());
+            if (o == null) {
+                throw getNotFoundException(
+                    "preset " + name,
+                    def.getPreSets().getComponentName());
+            }
             ue.applyPreSet(def.getPreSets());
             if (o instanceof Task) {
                 Task task = (Task) o;