diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckin.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckin.java
new file mode 100644
index 000000000..39d359c71
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckin.java
@@ -0,0 +1,124 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ * Creates a permanent new version of an element
+ *
+ * @see http://clearcase.rational.com/doc/latest/ccase_ux/ccref/checkin.html
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCCheckin extends CCMatchingTask {
+    private boolean nowarn = false;
+    private boolean ptime = false;
+    private boolean keep = false;
+    private boolean identical = true;
+
+    protected Vector getOptions(){
+        Vector v = new Vector();
+        v.addElement("ci");
+        if (nowarn){
+            v.addElement("-nowarn");
+        }
+        if (ptime){
+            v.addElement("-ptime");
+        }
+        if (comment != null){
+            v.addElement("-cfile");
+            v.addElement(commentFile.getPath());
+        }
+        if (keep){
+            v.addElement("-keep");
+        }
+        if (identical){
+            v.addElement("-identical");
+        }
+        v.addElement("<pname>");
+        return v;
+    }
+
+    protected void execute(String[] args, CCFile file) throws BuildException {
+        args[args.length - 1] = file.getPath();
+        CmdResult res = CCUtils.cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    protected boolean accept(CCFile file) {
+        return file.isCheckedOut();
+    }
+
+    // bean setters
+    public void setNowarn(boolean nowarn) {
+        this.nowarn = nowarn;
+    }
+
+    public void setPtime(boolean ptime) {
+        this.ptime = ptime;
+    }
+
+    public void setKeep(boolean keep) {
+        this.keep = keep;
+    }
+
+    public void setIdentical(boolean identical) {
+        this.identical = identical;
+    }
+}
\ No newline at end of file
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckout.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckout.java
new file mode 100644
index 000000000..79f488295
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCCheckout.java
@@ -0,0 +1,132 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+
+/**
+ * Creates a modifiable copy of a version
+ *
+ * @see http://clearcase.rational.com/doc/latest/ccase_ux/ccref/checkout.html
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCCheckout extends CCMatchingTask {
+    private boolean reserved = true;
+    private String branch = null;
+    private boolean version = false;
+    private boolean nwarn = false;
+    private String out = null;
+    private boolean ndata = false;
+    private boolean ptime = false;
+
+    protected Vector getOptions(){
+        Vector v = new Vector();
+        v.addElement("co");
+        v.addElement(reserved ? "-reserved":"-unreserved");
+        if (nwarn){
+            v.addElement("-nwarn");
+        }
+        if (branch != null){
+            v.addElement("-branch");
+            v.addElement(branch);
+        } else if (version) {
+            v.addElement("-version");
+        }
+        if (out != null){
+            v.addElement("-out");
+            v.addElement(out);
+        } else if (ndata){
+            v.addElement("-ndata");
+        }
+        if (ptime){
+            v.addElement("-ptime");
+        }
+        v.addElement("<pname>");
+        return v;
+    }
+
+    protected boolean accept(CCFile file) {
+        return file.isCheckedIn();
+    }
+
+    // bean setters
+    public void setPtime(boolean ptime) {
+        this.ptime = ptime;
+    }
+
+    public void setReserved(boolean reserved) {
+        this.reserved = reserved;
+    }
+
+    public void setOut(String out) {
+        this.out = out;
+    }
+
+    public void setNdata(boolean ndata) {
+        this.ndata = ndata;
+    }
+
+    public void setBranch(String branch) {
+        this.branch = branch;
+    }
+
+    public void setVersion(boolean version) {
+        this.version = version;
+    }
+
+    public void setNwarn(boolean nwarn) {
+        this.nwarn = nwarn;
+    }
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCFile.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCFile.java
new file mode 100644
index 000000000..667e97ea8
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCFile.java
@@ -0,0 +1,135 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.io.File;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ * An extended file that gives state information.
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCFile extends File {
+
+    /** is it checkedout */
+    private boolean checkedout;
+
+    /** is it under source control ? */
+    private boolean versioned;
+
+    /** was this file already described once ? */
+    private boolean described;
+
+    public CCFile(String parent, String child) {
+        super(parent, child);
+    }
+
+    public CCFile(File parent, String child) {
+        super(parent, child);
+    }
+
+    public CCFile(String pathname) {
+        super(pathname);
+    }
+
+    /**
+     * @return whether the file is checkedout. A non checkedout file
+     * does not imply it is a checkedin one.
+     * @see #isCheckedIn()
+     * @see #isVersioned()
+     */
+    public boolean isCheckedOut() {
+        if (!described){
+            refresh();
+        }
+        return checkedout;
+    }
+
+    /**
+     * @return whether the file is versioned or not.
+     */
+    public boolean isVersioned() {
+        if (!described){
+            refresh();
+        }
+        return versioned;
+    }
+
+    /**
+     * @return whether the file is checkedin or not. A non checkedin file
+     * does not imply it is a checkedout one.
+     * @see #isCheckedOut()
+     * @see #isVersioned()
+     */
+    public boolean isCheckedIn(){
+        return isVersioned() && !isCheckedOut();
+    }
+
+    /**
+     * Refresh the file status in case it changed since the
+     * first access.
+     */
+    public void refresh() {
+        String[] args = {"describe", "-fmt", "%m %o", getAbsolutePath() };
+        CmdResult res = CCUtils.cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+        String stdout = res.getStdout();
+        versioned = (stdout.indexOf("view private object") == -1);
+        checkedout = (stdout.indexOf("checkout") != -1);
+    }
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMatchingTask.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMatchingTask.java
new file mode 100644
index 000000000..6df1c668f
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMatchingTask.java
@@ -0,0 +1,161 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.io.File;
+import java.util.Vector;
+import java.util.Hashtable;
+import java.util.Enumeration;
+
+import org.apache.tools.ant.taskdefs.MatchingTask;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.DirectoryScanner;
+
+/**
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public abstract class CCMatchingTask extends MatchingTask {
+
+    protected File viewpath;
+
+    protected CCUtils utils = new CCUtils(this);
+
+    protected Hashtable files = null;
+
+    protected String comment = null;
+
+    protected File commentFile;
+
+    protected String[] options;
+
+    public void setViewPath(File value){
+        this.viewpath = value;
+    }
+
+    public void setComment(String value){
+        comment = value;
+    }
+
+    protected abstract Vector getOptions();
+
+    protected boolean accept(CCFile file){
+        return true;
+    }
+
+    public void execute() throws BuildException {
+        try {
+            preExecute();
+            doExecute();
+        } finally {
+            postExecute();
+        }
+    }
+
+    protected void preExecute() throws BuildException {
+        if (viewpath == null){
+            throw new BuildException("Invalid viewpath");
+        }
+        if (comment != null){
+            commentFile = CCUtils.createCommentFile(comment);
+        }
+        Vector v = getOptions();
+        options = new String[v.size()];
+        v.copyInto(options);
+    }
+
+    protected void postExecute(){
+        if (commentFile != null){
+            commentFile.delete();
+        }
+    }
+
+    protected void doExecute() throws BuildException {
+        Enumeration elems = getFiles().elements();
+        log("Processing " + files.size() + " elements...");
+        while ( elems.hasMoreElements() ){
+            execute(options, (CCFile)elems.nextElement());
+        }
+    }
+
+    protected void execute(String[] args, CCFile file) throws BuildException {
+        args[args.length - 1] = file.getPath();
+        CmdResult res = utils.cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    protected Hashtable getFiles(){
+        if (files == null){
+            return files;
+        }
+        files = new Hashtable();
+        DirectoryScanner ds = getDirectoryScanner(viewpath);
+        String[] includes = ds.getIncludedDirectories();
+        addElements(files, ds.getBasedir(), includes);
+        includes = ds.getIncludedFiles();
+        addElements(files, ds.getBasedir(), includes);
+        return files;
+    }
+
+    protected void addElements(Hashtable map, File basedir, String[] elems){
+        for (int i = 0; i < elems.length; i++){
+            CCFile f = new CCFile(basedir, elems[i]);
+            if ( accept(f) ){
+                map.put(f.getPath(), f);
+            }
+        }
+    }
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMkelem.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMkelem.java
new file mode 100644
index 000000000..2dc138e8b
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMkelem.java
@@ -0,0 +1,160 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+import java.util.Hashtable;
+import java.util.Enumeration;
+import java.io.File;
+
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.DirectoryScanner;
+import org.apache.tools.ant.types.FileSet;
+import org.apache.tools.ant.taskdefs.MatchingTask;
+
+/**
+ * Creates a file or directory element.
+ *
+ * @see http://clearcase.rational.com/doc/latest/ccase_ux/ccref/mkelem.html
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCMkelem extends CCMatchingTask {
+
+    private String type;
+
+    private boolean nocheckout;
+
+    private boolean checkin;
+
+    private boolean preserveTime;
+
+    private Hashtable codirs = new Hashtable();
+
+    public void execute(String[] args, CCFile file) throws BuildException {
+        CCFile parent = (CCFile)codirs.get(file.getParent());
+        if (parent == null){
+            parent = new CCFile(file.getParent());
+            if ( !parent.isVersioned() ){
+                // ensure versioned dir
+            } else if ( parent.isCheckedIn() ){
+                utils.checkout( parent );
+            }
+            codirs.put(parent.getPath(), parent);
+        }
+        args[args.length - 1] = file.getAbsolutePath();
+        CmdResult res = CCUtils.cleartool(args);
+        if (res.getStatus() != 0) {
+            throw new BuildException(res.getStdErr());
+        }
+
+    }
+
+    protected void postExecute() {
+        // checkin back all co directories
+        Enumeration dirs = codirs.elements();
+        while( dirs.hasMoreElements() ){
+            File dir = (File)dirs.nextElement();
+            utils.checkin( dir );
+        }
+        super.postExecute();
+    }
+
+    /** create the command line options based on user input */
+    protected Vector getOptions(){
+        Vector v = new Vector();
+        v.addElement("mkelem");
+        if (type != null){
+            v.addElement("-eltype");
+            v.addElement(type);
+        }
+        if (comment == null){
+            v.addElement("-nc");
+        } else {
+            commentFile = CCUtils.createCommentFile(comment);
+            v.addElement("-cfi");
+            v.addElement(commentFile.getAbsolutePath());
+        }
+        if (nocheckout){
+            v.addElement("-nco");
+        } else if (checkin){
+            v.addElement("-ci");
+            if (preserveTime){
+                v.addElement("-ptime");
+            }
+        }
+        v.addElement("<pname>"); // dummy arg for file
+        return v;
+    }
+
+// bean setters
+    public void setType(String value){
+        type = value;
+    }
+
+    public void setNoCheckout(boolean value){
+        nocheckout = value;
+    }
+
+    public void setCheckin(boolean value){
+        checkin = value;
+    }
+
+    public void setPreserveTime(boolean value){
+        preserveTime = value;
+    }
+
+
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMklabel.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMklabel.java
new file mode 100644
index 000000000..020dba386
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCMklabel.java
@@ -0,0 +1,126 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ * Attaches version labels to version of elements.
+ *
+ * @see http://clearcase.rational.com/doc/latest/ccase_ux/ccref/mklabel.html#2051
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCMklabel extends CCMatchingTask {
+    private boolean replace = false;
+    private boolean follow = false;
+    private String version = null;
+    private boolean recurse = false;
+
+    protected Vector getOptions(){
+        Vector v = new Vector();
+        v.addElement("mklabel");
+        if (replace){
+            v.addElement("-replace");
+        }
+        if (recurse){
+            v.addElement("-recurse");
+        }
+        if (follow){
+            v.addElement("-follow");
+        }
+        if (comment != null){
+            v.addElement("-cfile");
+            v.addElement(commentFile.getPath());
+        }
+        if (version != null){
+            v.addElement("-version");
+            v.addElement(version);
+        }
+        v.addElement("<pname>");
+        return v;
+    }
+
+    protected void doExecute() throws BuildException {
+        // not very nice, but we'll try to speed up things
+        // by assuming a recurse is set only to the viewpath.
+        if (recurse){
+            options[options.length - 1] = viewpath.getPath();
+            utils.cleartool(options);
+        } else {
+            super.doExecute();
+        }
+    }
+
+    protected boolean accept(CCFile file) {
+        //@fixme does it fail on checkedout files ?
+        return file.isVersioned();
+    }
+    //  bean setters
+
+    public void setRecurse(boolean value){
+        recurse = value;
+    }
+    public void setVersion(String value){
+        version = value;
+    }
+    public void setReplace(boolean value){
+        replace = value;
+    }
+    public void setFollow(boolean value){
+        follow = value;
+    }
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCRmname.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCRmname.java
new file mode 100644
index 000000000..e8955a779
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCRmname.java
@@ -0,0 +1,124 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+import java.util.Hashtable;
+import java.util.Enumeration;
+import java.io.File;
+
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.DirectoryScanner;
+import org.apache.tools.ant.taskdefs.MatchingTask;
+import org.apache.tools.ant.types.FileSet;
+
+/**
+ * Removes the name of an element or VOB symbolic link from a directory version
+ *
+ * @see http://clearcase.rational.com/doc/latest/ccase_ux/ccref/rmname.html
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CCRmname extends CCMatchingTask {
+
+    private boolean force = false;
+
+    /** used to cache co directories */
+    private Hashtable codirs = new Hashtable();
+
+    protected Vector getOptions() {
+        Vector v = new Vector();
+        v.addElement("rmname");
+        if (comment != null){
+            v.addElement("-cfile");
+            v.addElement(commentFile.getPath());
+        } else {
+            v.addElement("-comment");
+            v.addElement(CCUtils.DEFAULT_COMMENT);
+        }
+        if (force){
+            v.addElement("-f");
+        }
+        v.addElement("<pname>");
+        return v;
+    }
+
+    public void execute(String[] args, CCFile file) throws BuildException {
+        CCFile parent = new CCFile(file.getParent());
+        // we have first to co the parent
+        if ( parent.isCheckedIn() ){
+            utils.checkout(parent);
+        }
+        // remove the element
+        args[args.length - 1] = file.getAbsolutePath();
+        CmdResult res = utils.cleartool(args);
+        // if it failed, unco otherwise ci the parent
+        if (res.getStatus() != 0){
+            utils.uncheckout(parent);
+            throw new BuildException(res.getStdErr());
+        } else {
+            utils.checkin(parent);
+        }
+    }
+
+    protected boolean accept(CCFile file){
+        return file.isCheckedIn();
+    }
+
+// bean setters
+    public void setForce(boolean value){
+        force = value;
+    }
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCUtils.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCUtils.java
new file mode 100644
index 000000000..6b03daa64
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CCUtils.java
@@ -0,0 +1,294 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.Writer;
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.util.Hashtable;
+import java.util.Vector;
+import java.util.Enumeration;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.util.regexp.RegexpMatcher;
+import org.apache.tools.ant.util.regexp.RegexpMatcherFactory;
+import org.apache.tools.ant.util.StringUtils;
+import org.apache.tools.ant.util.FileUtils;
+import org.apache.tools.ant.taskdefs.Execute;
+import org.apache.tools.ant.taskdefs.ExecuteStreamHandler;
+import org.apache.tools.ant.taskdefs.PumpStreamHandler;
+
+/**
+ * Helper methods related to clearcase commands.
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public final class CCUtils {
+
+    public final static String DEFAULT_COMMENT = "\"Automatic operation from Jakarta Ant\"";
+
+    private final static RegexpMatcherFactory __reFactory = new RegexpMatcherFactory();
+
+    /** the matchers cache: pattern/matcher */
+    private final static Hashtable matchers = new Hashtable();
+
+    private Task task;
+
+    public CCUtils(Task task){
+        this.task = task;
+    }
+
+    /**
+     * return a group of matches of a given RE in a string.
+     * @param pattern the pattern to match in the input data.
+     * @param input the data where to look for the pattern.
+     * @return the group of matches if any, 0 being the full match
+     * and the rest being parenthesized expressions. <tt>null</tt>
+     * if there are no matches.
+     */
+    public Vector matches(String pattern, String input){
+        RegexpMatcher matcher = (RegexpMatcher)matchers.get(pattern);
+        if (matcher == null){
+            matcher = __reFactory.newRegexpMatcher();
+            matcher.setPattern(pattern);
+            matchers.put(pattern, matcher);
+        }
+        return matcher.getGroups(input);
+    }
+
+    /**
+     * Try to resolve a symbolic link if it is one.
+     * @param toresolve the symbolic link to resolve.
+     * @return the resolved link if it is a symbolic link, otherwise
+     * return the original link.
+     */
+    public File resolveSymbolicLink(File toresolve) throws Exception {
+        String[] args = { "ls", "-l", toresolve.getAbsolutePath() };
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0 ){
+            throw new BuildException(res.getStdErr());
+        }
+        Vector groups = matches("symbolic link(.*)-->(.*)", res.getStdout());
+        if (groups == null){
+            return toresolve; // or null ?
+        }
+        String path = (String)groups.elementAt(2);
+        path = path.trim();
+        File resolved = new File(path);
+        if ( !resolved.isAbsolute() ){
+            resolved = new File(toresolve.getParent(), path);
+        }
+        return resolved;
+    }
+
+    /**
+     * Move a file to another. (ie rename)
+     */
+    public void move(File from, File to) throws Exception {
+        String[] args = {"move", "-nc", from.getPath(), to.getPath()};
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0) {
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    /**
+     * return the list of checkedout files in a given viewpath.
+     * @param viewpath the path to the view/directory to look for
+     * checkedout files.
+     * @param recurse <tt>true</tt> to look for files recursively,
+     * otherwise <tt>false</tt>
+     * @return the list of checkedout files in the view (full pathname).
+     */
+    public Hashtable lsco(File viewpath, boolean recurse) {
+        String recurseParam = recurse ? "-r" : "";
+        String fullpath = viewpath.getAbsolutePath();
+        //@fixme is -cvi conflicting with -r ?
+        String[] args = {"lsco", recurseParam, "-cvi", "-s", "-me", fullpath};
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0) {
+            throw new BuildException(res.getStdErr());
+        }
+
+        Vector lines = res.getStdoutLines();
+        Hashtable map = toFiles(lines);
+        return map;
+    }
+
+    /**
+     * Transform a set of paths into canonical paths.
+     * Typically this should be used to transform a set of
+     * output lines by cleartool representing file paths.
+     */
+    public static Hashtable toFiles(Vector paths){
+        Hashtable map = new Hashtable();
+        for (int i = 0; i < paths.size(); i++) {
+            String path = (String) paths.elementAt(i);
+            try {
+                // the path is normally the full path, we normally
+                // not need to do a new File(viewpath, path)
+                File f = new File(path);
+                path = f.getCanonicalPath();
+                map.put(path, path);
+            } catch (IOException e) {
+                // assume it's not a file...
+            }
+        }
+        return map;
+    }
+
+    /**
+     * Returns the list of files that are *not* checked out.
+     * @see #lsco(File, boolean)
+     */
+    public Hashtable lsnco(File viewpath){
+        String[] args = {"find", viewpath.getAbsolutePath(), "-type", "f", "-cvi", "-nxn", "-print"};
+        CmdResult res = cleartool(args);
+        Vector lines = res.getStdoutLines();
+        Hashtable all = toFiles(lines);
+        Hashtable co = lsco(viewpath, true);
+        // remove the co files
+        Enumeration keys = co.keys();
+        while ( keys.hasMoreElements() ){
+            Object path = keys.nextElement();
+            Object o = all.remove(path);
+            if (o == null){
+                // oops how come a co file is not found by find ?
+            }
+        }
+        return all;
+    }
+
+    /** returns the list of private files in the view */
+    public Hashtable lsprivate(File viewpath){
+        // for a snapshot view, we must use ls -r -view_only
+        return null;
+    }
+
+    public void checkin(File file){
+        String[] args = {"ci", "-nc", "-identical", file.getAbsolutePath()} ;
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    public void checkout(File file){
+        String[] args = {"co", "-nc", "-unreserved", file.getAbsolutePath()} ;
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    public void uncheckout(File file){
+        String[] args = {"unco", "-rm", file.getAbsolutePath() };
+        CmdResult res = cleartool(args);
+        if (res.getStatus() != 0){
+            throw new BuildException(res.getStdErr());
+        }
+    }
+
+    /**
+     * Helper method to execute a given cleartool command.
+     * @param args the parameters used to execute cleartool.
+     * @return the result of the command.
+     */
+    public static CmdResult cleartool(String[] args) {
+        String[] nargs = new String[args.length + 1];
+        nargs[0] = "cleartool";
+        System.arraycopy(args, 0, nargs, 1, args.length);
+
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        ByteArrayOutputStream err = new ByteArrayOutputStream();
+        ExecuteStreamHandler handler = new PumpStreamHandler(out, err);
+        Execute exe = new Execute(handler);
+        exe.setCommandline(nargs);
+        try {
+            int retcode = exe.execute();
+            return new CmdResult(retcode, out.toString(), err.toString());
+        } catch (IOException e){
+            throw new BuildException(e);
+        }
+    }
+
+    /**
+     * Create the comment file used by cleartool commands.
+     */
+    public static File createCommentFile(String comment) {
+        FileUtils futils = FileUtils.newFileUtils();
+        File f = futils.createTempFile("ant_cc", ".tmp", new File("."));
+        Writer writer = null;
+        try {
+            writer = new BufferedWriter(new FileWriter(f));
+            writer.write(comment);
+            writer.flush();
+        } catch (IOException e){
+            throw new BuildException(e);
+        } finally {
+            if (writer != null){
+                try {
+                    writer.close();
+                } catch (IOException e){
+                }
+            }
+        }
+        return f;
+    }
+
+}
diff --git a/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CmdResult.java b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CmdResult.java
new file mode 100644
index 000000000..088ee6f74
--- /dev/null
+++ b/proposal/sandbox/clearcase/src/main/org/apache/tools/ant/taskdefs/optional/clearcase/CmdResult.java
@@ -0,0 +1,98 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.clearcase;
+
+import java.util.Vector;
+
+import org.apache.tools.ant.util.StringUtils;
+
+/**
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+public class CmdResult {
+
+    private String stdout;
+
+    private String stderr;
+
+    private int code = 0;
+
+    public CmdResult(int code, String stdout, String stderr){
+        this.code = code;
+        this.stdout = stdout;
+        this.stderr = stderr;
+    }
+
+    public String getStdout(){
+        return stdout;
+    }
+
+    public Vector getStdoutLines(){
+        return StringUtils.lineSplit(stdout);
+    }
+
+    public String getStdErr(){
+        return stderr;
+    }
+
+    public Vector getStdErrLines(){
+        return StringUtils.lineSplit(stderr);
+    }
+
+    public int getStatus(){
+        return code;
+    }
+
+}