diff --git a/jar/plugin.jelly b/jar/plugin.jelly
index 870fb617..2d2e580f 100644
--- a/jar/plugin.jelly
+++ b/jar/plugin.jelly
@@ -7,7 +7,8 @@
   xmlns:maven="jelly:maven"
   xmlns:deploy="deploy"
   xmlns:util="jelly:util"
-  xmlns:doc="doc">
+  xmlns:doc="doc"
+  xmlns:log="jelly:log">
 
   <!-- ================================================================== -->
   <!-- J A R                                                              -->
@@ -70,7 +71,6 @@
             <ant:attribute name="Extension-List" value="${extensionList}"/>
           </j:if>
 
-        
           <j:forEach var="artifact" items="${pom.artifacts}">
             <j:set var="dep" value="${artifact.dependency}"/>
 	        <ant:attribute name="${dep.artifactId}-Extension-Name" value="${dep.artifactId}"/>
@@ -78,6 +78,36 @@
             <ant:attribute name="${dep.artifactId}-Implementation-URL" value="http://www.ibiblio.org/maven${artifact.urlPath}"/>
           </j:forEach>        
         </j:if>
+
+        <j:if test="${context.getVariable('maven.jar.manifest.attributes.list') != null}">
+            <util:tokenize var="attributeList" delim="," trim="true">${maven.jar.manifest.attributes.list}</util:tokenize>
+            <j:forEach var="attribute" items="${attributeList}">
+                <j:set var="name" value="maven.jar.manifest.attribute.${attribute}"/>
+                <j:set var="value" value="${context.findVariable(name)}"/>
+                <log:debug>[user attribute] ${attribute}: ${value}</log:debug>
+                <ant:attribute name="${attribute}" value="${value}"/>
+            </j:forEach>
+        </j:if>
+
+        <j:if test="${context.getVariable('maven.jar.manifest.groups.list') != null}">
+            <util:tokenize var="groupList" delim="," trim="true">${maven.jar.manifest.groups.list}</util:tokenize>
+            <j:forEach var="group" items="${groupList}">
+                <j:set var="nameVar" value="maven.jar.manifest.${group}.name"/>
+                <j:set var="groupName" value="${context.findVariable(nameVar)}"/>
+                <j:set var="attributeListVar" value="maven.jar.manifest.${group}.attributes.list"/>
+                <j:set var="groupAttributes" value="${context.findVariable(attributeListVar)}"/>
+                <util:tokenize var="attributeList" delim="," trim="true">${groupAttributes}</util:tokenize>
+                <log:debug>[group] Name: ${groupName}</log:debug>
+                <ant:section name="${groupName}">
+                    <j:forEach var="attribute" items="${attributeList}">
+                        <j:set var="name" value="maven.jar.manifest.${group}.attribute.${attribute}"/>
+                        <j:set var="value" value="${context.findVariable(name)}"/>
+                        <log:debug>[attribute] ${attribute}: ${value}</log:debug>
+                        <ant:attribute name="${attribute}" value="${value}"/>
+                    </j:forEach>
+                </ant:section>
+            </j:forEach>
+         </j:if>
       </ant:manifest>
     </ant:jar>
   </goal>
diff --git a/jar/project.xml b/jar/project.xml
index 6756b538..abf96772 100644
--- a/jar/project.xml
+++ b/jar/project.xml
@@ -5,7 +5,7 @@
   <pomVersion>3</pomVersion>
   <id>maven-jar-plugin</id>
   <name>Maven Jar Plug-in</name>
-  <currentVersion>1.2-SNAPSHOT</currentVersion>
+  <currentVersion>1.3</currentVersion>
   <description/>
   <shortDescription>Java Project Management Tools</shortDescription>
   <url>http://maven.apache.org/reference/plugins/jar/</url>