fix for GRAILS-5700 "Maven dependencies being cached by ivy"

Author: graemerocher

src/java/org/codehaus/groovy/grails/resolve/EnhancedDefaultDependencyDescriptor.groovy

@@ -117,6 +117,12 @@ public class EnhancedDefaultDependencyDescriptor extends DefaultDependencyDescri
         field.set(this, b)         
     }
 
+    void setChanging ( boolean b ) {
+        // nasty hack since the isChanging Ivy field is not public
+        Field field = getClass().getSuperclass().getDeclaredField("isChanging")
+        field.accessible = true
+        field.set(this, b)
+    }
 
     void addRuleForModuleId(ModuleId mid, String scope) {
         def id = new ArtifactId(mid, WILDCARD, WILDCARD, WILDCARD)

src/test/org/codehaus/groovy/grails/resolve/IvyDependencyManagerTests.groovy

@@ -33,6 +33,21 @@ public class IvyDependencyManagerTests extends GroovyTestCase{
         GroovySystem.metaClassRegistry.removeMetaClass(System) 
     }
 
+    void testChanging() {
+        def settings = new BuildSettings()
+        def manager = new IvyDependencyManager("test", "0.1",settings)
+
+        manager.parseDependencies {
+            runtime( [group:"opensymphony", name:"oscache", version:"2.4.1", classifier:"source"] ) {
+                changing = true
+            }
+        }
+
+
+        def dep = manager.dependencyDescriptors.iterator().next()
+        assert dep.changing
+
+    }
     void testClassifier() {
         def settings = new BuildSettings()
         def manager = new IvyDependencyManager("test", "0.1",settings)