Added some (deep) clone methods.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@267900 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/Commandline.java

@@ -82,7 +82,7 @@ import java.util.StringTokenizer;
  * @author thomas.haas@softwired-inc.com
  * @author <a href="mailto:stefan.bodewig@megabit.net">Stefan Bodewig</a> 
  */
-public class Commandline {
+public class Commandline implements Clonable {
 
     private Vector arguments = new Vector();
     private String executable = null;
@@ -335,4 +335,11 @@ public class Commandline {
         return getCommandline().length;
     }
 
+    public Object clone() {
+        Commandline c = new Commandline();
+        c.setExecutable(executable);
+        c.addArguments(getArguments());
+        return c;
+    }
+
 }

src/main/org/apache/tools/ant/types/CommandlineJava.java

@@ -60,7 +60,7 @@ import org.apache.tools.ant.Project;
  *
  * @author thomas.haas@softwired-inc.com
  */
-public class CommandlineJava {
+public class CommandlineJava implements Cloneable {
 
     private Commandline vmCommand = new Commandline();
     private Commandline javaCommand = new Commandline();
@@ -151,4 +151,13 @@ public class CommandlineJava {
     public Path getClasspath() {
         return classpath;
     }
+
+    public Object clone() {
+        CommandlineJava c = new CommandlineJava();
+        c.vmCommand = (Commandline) vmCommand.clone();
+        c.javaCommand = (Commandline) javaCommand.clone();
+        c.classpath = (Path) classpath.clone();
+        c.vmVersion = vmVersion;
+        return c;
+    }
 }

src/main/org/apache/tools/ant/types/Path.java

@@ -93,7 +93,7 @@ import java.text.StringCharacterIterator;
  * @author <a href="mailto:stefan.bodewig@megabit.net">Stefan Bodewig</a> 
  */
 
-public class Path {
+public class Path implements Cloneable {
 
     private Vector elements;
     private Project project;
@@ -309,6 +309,12 @@ public class Path {
         return list().length;
     }
 
+    public Object clone() {
+        Path p = new Path(project);
+        p.append(this);
+        return p;
+    }
+
     private static String resolveFile(Project project, String relativeName) {
         if (project != null) {
             return project.resolveFile(relativeName).getAbsolutePath();