FIX issue with cache path and cache fileset

git-svn-id: https://svn.apache.org/repos/asf/incubator/ivy/trunk@484082 13f79535-47bb-0310-9956-ffa450edef68

src/java/fr/jayasoft/ivy/ant/IvyCacheFileset.java

@@ -23,6 +23,7 @@ public class IvyCacheFileset extends IvyCacheTask {
     }
 
     public void execute() throws BuildException {
+        prepareAndCheck();
         if (_setid == null) {
             throw new BuildException("setid is required in ivy cachefileset");
         }

src/java/fr/jayasoft/ivy/ant/IvyCachePath.java

@@ -29,6 +29,7 @@ public class IvyCachePath extends IvyCacheTask {
     }
 
     public void execute() throws BuildException {
+        prepareAndCheck();
         if (_pathid == null) {
             throw new BuildException("pathid is required in ivy classpath");
         }

src/java/fr/jayasoft/ivy/ant/IvyCacheTask.java

@@ -75,7 +75,7 @@ public abstract class IvyCacheTask extends IvyTask {
         _type = type;
     }
 
-    protected List getPaths() throws BuildException, ParseException, IOException {
+    protected void prepareAndCheck() {
         Ivy ivy = getIvyInstance();
         
         ensureResolved(isHaltonfailure());
@@ -96,6 +96,10 @@ public abstract class IvyCacheTask extends IvyTask {
             throw new BuildException("no module name provided for ivy cachefileset: It can either be set explicitely via the attribute 'module' or via 'ivy.module' property or a prior call to <resolve/>");
         }
         _artifactFilter = FilterHelper.getArtifactTypeFilter(_type);
+    }
+
+    protected List getPaths() throws BuildException, ParseException, IOException {
+        Ivy ivy = getIvyInstance();
 
         XmlReportParser parser = new XmlReportParser();