diff --git a/src/main/org/apache/tools/ant/RuntimeConfigurable.java b/src/main/org/apache/tools/ant/RuntimeConfigurable.java
index 0816cb733..6f970aee5 100644
--- a/src/main/org/apache/tools/ant/RuntimeConfigurable.java
+++ b/src/main/org/apache/tools/ant/RuntimeConfigurable.java
@@ -40,6 +40,9 @@ import org.xml.sax.helpers.AttributeListImpl;
*/
public class RuntimeConfigurable implements Serializable {
+ /** Empty Hashtable. */
+ private static final Hashtable EMPTY_HASHTABLE = new Hashtable(0);
+
/** Name of the element to configure. */
private String elementTag = null;
@@ -183,11 +186,8 @@ public class RuntimeConfigurable implements Serializable {
* @since Ant 1.6
*/
public Hashtable getAttributeMap() {
- if (attributeMap != null) {
- return new Hashtable(attributeMap);
- } else {
- return new Hashtable(1);
- }
+ return (attributeMap == null)
+ ? EMPTY_HASHTABLE : new Hashtable(attributeMap);
}
/**
@@ -208,9 +208,7 @@ public class RuntimeConfigurable implements Serializable {
* Must not be null
.
*/
public void addChild(RuntimeConfigurable child) {
- if (children == null) {
- children = new ArrayList();
- }
+ children = (children == null) ? new ArrayList() : children;
children.add(child);
}
@@ -232,11 +230,8 @@ public class RuntimeConfigurable implements Serializable {
* @since Ant 1.6
*/
public Enumeration getChildren() {
- if (children != null) {
- return Collections.enumeration(children);
- } else {
- return new CollectionUtils.EmptyEnumeration();
- }
+ return (children == null) ? new CollectionUtils.EmptyEnumeration()
+ : Collections.enumeration(children);
}
/**
@@ -246,14 +241,8 @@ public class RuntimeConfigurable implements Serializable {
* Should not be null
.
*/
public void addText(String data) {
- if (data.length() == 0) {
- return;
- }
- if (characters != null) {
- characters.append(data);
- } else {
- characters = new StringBuffer(data);
- }
+ characters = (characters == null)
+ ? new StringBuffer(data) : characters.append(data);
}
/**
@@ -347,7 +336,6 @@ public class RuntimeConfigurable implements Serializable {
if (proxyConfigured) {
return;
}
-
// Configure the object
Object target = (wrappedObject instanceof TypeAdapter)
? ((TypeAdapter) wrappedObject).getProxy() : wrappedObject;
@@ -396,8 +384,7 @@ public class RuntimeConfigurable implements Serializable {
Enumeration e = getChildren();
while (e.hasMoreElements()) {
- RuntimeConfigurable child
- = (RuntimeConfigurable) e.nextElement();
+ RuntimeConfigurable child = (RuntimeConfigurable) e.nextElement();
if (child.wrappedObject instanceof Task) {
Task childTask = (Task) child.wrappedObject;
childTask.setRuntimeConfigurableWrapper(child);
@@ -416,11 +403,9 @@ public class RuntimeConfigurable implements Serializable {
* For TaskContainers, we simply skip configuration here.
*/
String tag = child.getElementTag().toLowerCase(Locale.US);
- if (configureChildren
- && ih.supportsNestedElement(tag)) {
+ if (configureChildren && ih.supportsNestedElement(tag)) {
child.maybeConfigure(p);
- ProjectHelper.storeChild(p, target, child.wrappedObject,
- tag);
+ ProjectHelper.storeChild(p, target, child.wrappedObject, tag);
}
}
@@ -443,9 +428,9 @@ public class RuntimeConfigurable implements Serializable {
/**
* Apply presets, attributes and text are set if not currently set.
- * nested elements are prepended.
+ * Nested elements are prepended.
*
- * @param r a RuntimeConfigurable
value
+ * @param r a RuntimeConfigurable
value.
*/
public void applyPreSet(RuntimeConfigurable r) {
// Attributes
@@ -458,11 +443,10 @@ public class RuntimeConfigurable implements Serializable {
}
}
// poly type
- if (r.polyType != null && polyType == null) {
- polyType = r.polyType;
- }
- // Children (this is a shadow of unknownElement#children)
+ polyType = (polyType == null) ? r.polyType : polyType;
+
+ // Children (this is a shadow of UnknownElement#children)
if (r.children != null) {
List newChildren = new ArrayList();
newChildren.addAll(r.children);
@@ -476,8 +460,7 @@ public class RuntimeConfigurable implements Serializable {
if (r.characters != null) {
if (characters == null
|| characters.toString().trim().length() == 0) {
- characters =
- new StringBuffer(r.characters.toString());
+ characters = new StringBuffer(r.characters.toString());
}
}
}