diff --git a/core/pom.xml b/core/pom.xml
index af385810fa548575afa0ca9d6141c0af182f1ccc..a7ea2914f75ff945125ec416d4f51242b0b6dc3e 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -225,6 +225,13 @@ THE SOFTWARE.
           </dependency>
         </dependencies>
       </plugin>
+      <plugin><!-- generate licenses.xml -->
+        <groupId>com.cloudbees</groupId>
+        <artifactId>maven-license-plugin</artifactId>
+        <configuration>
+          <generateLicenseXml>target/classes/META-INF/licenses.xml</generateLicenseXml>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
 
diff --git a/core/src/main/java/hudson/PluginWrapper.java b/core/src/main/java/hudson/PluginWrapper.java
index 55e038bb93f6fc797f736b9d2f330857421727cb..168edc426b5a295ce72dca845110b5525348ea20 100644
--- a/core/src/main/java/hudson/PluginWrapper.java
+++ b/core/src/main/java/hudson/PluginWrapper.java
@@ -397,6 +397,15 @@ public class PluginWrapper implements Comparable<PluginWrapper> {
         return manifest.getMainAttributes().getValue("Plugin-Class");
     }
 
+    public boolean hasLicensesXml() {
+        try {
+            new URL(baseResourceURL,"WEB-INF/licenses.xml").openStream().close();
+            return true;
+        } catch (IOException e) {
+            return false;
+        }
+    }
+
     /**
      * Makes sure that all the dependencies exist, and then accept optional dependencies
      * as real dependencies.
diff --git a/core/src/main/resources/hudson/PluginManager/installed.jelly b/core/src/main/resources/hudson/PluginManager/installed.jelly
index 877fc301375d70e2923d8ba4b2cea2ae5aa619b3..1cf0928d7a34e47f0b3e647f63dd78215058f23f 100644
--- a/core/src/main/resources/hudson/PluginManager/installed.jelly
+++ b/core/src/main/resources/hudson/PluginManager/installed.jelly
@@ -67,7 +67,9 @@ THE SOFTWARE.
                   </div>
                 </td>
                 <td class="center pane" style="white-space:nowrap">
-                  ${p.version}
+                  <a href="plugin/${p.shortName}/3rdPartyLicenses">
+                    ${p.version}
+                  </a>
                 </td>
                 <td>
                   <j:if test="${p.downgradable}">
diff --git a/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.jelly b/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.jelly
new file mode 100644
index 0000000000000000000000000000000000000000..1c6e4fa397c44729b296742d417a4e03b783aada
--- /dev/null
+++ b/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.jelly
@@ -0,0 +1,44 @@
+<!--
+The MIT License
+
+Copyright (c) 2011, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<!-- 3rd party license acknowledgements and  -->
+<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:s="/lib/form">
+  <l:layout title="${%about(it.longName)}">
+    <l:main-panel>
+      <h1>${%about(it.longName+' '+it.version)}</h1>
+
+      <h3>${%3rd Party Dependencies}</h3>
+      <t:3rdPartyLicenses>
+        <j:choose>
+          <j:when test="${it.hasLicensesXml()}">
+            <j:include uri="${it.baseResourceURL}/WEB-INF/licenses.xml" />
+          </j:when>
+          <j:otherwise>
+            <p>${%No information recorded}</p>
+          </j:otherwise>
+        </j:choose>
+      </t:3rdPartyLicenses>
+    </l:main-panel>
+  </l:layout>
+</j:jelly>
diff --git a/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.properties b/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.properties
new file mode 100644
index 0000000000000000000000000000000000000000..d01c4dc5008206511c0bf06c33166c715dddac4f
--- /dev/null
+++ b/core/src/main/resources/hudson/PluginWrapper/3rdPartyLicenses.properties
@@ -0,0 +1 @@
+about=About {0}
\ No newline at end of file
diff --git a/core/src/main/resources/hudson/model/Hudson/about.jelly b/core/src/main/resources/hudson/model/Hudson/about.jelly
new file mode 100644
index 0000000000000000000000000000000000000000..4e374b7d16a25e8cc8e5d54230f233b701c589ee
--- /dev/null
+++ b/core/src/main/resources/hudson/model/Hudson/about.jelly
@@ -0,0 +1,43 @@
+<!--
+The MIT License
+
+Copyright (c) 2011, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<!-- 3rd party license acknowledgements and  -->
+<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:s="/lib/form">
+  <l:layout title="${%about(it.VERSION)}">
+    <st:include page="sidepanel.jelly" />
+    <l:main-panel>
+      <h1>${%about(it.VERSION)}</h1>
+      <p>
+        ${%blurb}
+      </p>
+
+      <p>
+        ${%dependencies}
+      </p>
+      <t:3rdPartyLicenses>
+        <st:include page="/META-INF/licenses.xml" />
+      </t:3rdPartyLicenses>
+    </l:main-panel>
+  </l:layout>
+</j:jelly>
diff --git a/core/src/main/resources/hudson/model/Hudson/about.properties b/core/src/main/resources/hudson/model/Hudson/about.properties
new file mode 100644
index 0000000000000000000000000000000000000000..4f677ba18dee32be015a28daa452f6c4be5cb84c
--- /dev/null
+++ b/core/src/main/resources/hudson/model/Hudson/about.properties
@@ -0,0 +1,4 @@
+about=About Jenkins {0}
+blurb=<a href="http://jenkins-ci.org/">Jenkins</a> is a community-developed open-source continuous integration server.
+
+dependencies=Jenkins depends on the following 3rd party libraries.
\ No newline at end of file
diff --git a/core/src/main/resources/lib/hudson/3rdPartyLicenses.jelly b/core/src/main/resources/lib/hudson/3rdPartyLicenses.jelly
new file mode 100644
index 0000000000000000000000000000000000000000..42799241602fa70c32056ca7211f3c1ee7ea682d
--- /dev/null
+++ b/core/src/main/resources/lib/hudson/3rdPartyLicenses.jelly
@@ -0,0 +1,57 @@
+<!--
+The MIT License
+
+Copyright (c) 2011, CloudBees, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-->
+
+<!-- 3rd party license acknowledgements and  -->
+<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:s="/lib/form">
+  <d:taglib uri="licenses">
+    <d:tag name="dependencies">
+      <table class="pane sortable bigtable">
+        <tr>
+          <th class="pane-header">${%Name}</th>
+          <th class="pane-header">${%Maven ID}</th>
+          <th class="pane-header">${%License}</th>
+        </tr>
+        <d:invokeBody/>
+      </table>
+    </d:tag>
+    <d:tag name="dependency">
+      <tr>
+        <td>
+          <a href="${attrs.url}">${attrs.name}</a>
+        </td>
+        <td>
+          ${attrs.groupId}:${attrs.artifactId}:${attrs.version}
+        </td>
+        <td>
+          <d:invokeBody />
+        </td>
+      </tr>
+    </d:tag>
+    <d:tag name="description"/>
+    <d:tag name="license">
+      <a href="${attrs.url}">${attrs.name}</a><br/>
+    </d:tag>
+  </d:taglib>
+  <d:invokeBody/>
+</j:jelly>
diff --git a/licenseCompleter.groovy b/licenseCompleter.groovy
new file mode 100644
index 0000000000000000000000000000000000000000..252f005e1a2ab631b1e1b0fd7687c50258c06fe7
--- /dev/null
+++ b/licenseCompleter.groovy
@@ -0,0 +1,92 @@
+
+def apacheLicense = license("The Apache Software License, Version 2.0","http://www.apache.org/licenses/LICENSE-2.0.txt")
+def cddl = license("CDDL","http://www.sun.com/cddl/")
+def lgpl = license("LGPL 2.1","http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html")
+def mitLicense = license("MIT License","http://www.opensource.org/licenses/mit-license.php")
+def jenkinsLicense = license("MIT License","http://jenkins-ci.org/mit-license")
+
+
+match("asm:*") {
+    rewriteLicense([], license("BSD License","http://asm.ow2.org/license.html"))
+}
+
+// Apache components
+//   logkit is a part of Avalon
+match(["org.apache.ant:*","commons-jelly:*","log4j:*","avalon-framework:*","logkit:logkit","oro:oro","org.jvnet.hudson:commons-jelly","org.jvnet.hudson:commons-jelly-tags-define","slide:slide-webdavlib"]) {
+    rewriteLicense([], apacheLicense)
+}
+
+// GlassFish components are dual-licensed between CDDL and GPL+Classpath Exception
+// we elect to take them under CDDL.
+match(["javax.mail:*","org.jvnet.hudson:activation","org.jvnet:tiger-types","javax.servlet:jstl"]) {
+    rewriteLicense([], cddl)
+}
+
+match("antlr:*") {
+    rewriteLicense([], license("BSD License","http://www.antlr.org/license.html"))
+}
+
+match("jaxen:jaxen") {
+    rewriteLicense([], license("BSD License","http://jaxen.codehaus.org/license.html"))
+}
+
+match("args4j:args4j") {
+    rewriteLicense([], mitLicense)
+}
+
+match("*:dom4j") {
+    rewriteLicense([],license("BSD License","http://dom4j.sourceforge.net/dom4j-1.6.1/license.html"))
+}
+
+match(["org.codehaus.groovy:*"]) {
+    // see http://groovy.codehaus.org/License+Information
+    // see http://jmdns.sourceforge.net/license.html
+    rewriteLicense([],apacheLicense)
+}
+
+match("*:stapler-adjunct-timeline") {
+    rewriteLicense([],license("BSD License","http://simile.mit.edu/license.html"))
+}
+
+match("*:txw2") {
+    // see http://java.net/projects/jaxb/sources/version2/content/trunk/txw2/license.txt?rev=3611
+    rewriteLicense([],cddl)
+}
+
+match(["org.kohsuke.jinterop:j-interop","org.kohsuke.jinterop:j-interopdeps"]) {
+    rewriteLicense([],license("LGPL v3","http://www.j-interop.org/license.html"))
+}
+
+// these are our own modules that have license in the trunk but not in these released versions
+// as we upgrade them, we should just pick up the license info from POM
+match(["org.jenkins-ci.modules:instance-identity","org.jvnet.hudson:task-reactor","org.jvnet.hudson:annotation-indexer","*:jinterop-wmi","*:maven2.1-interceptor","*:hudson-maven-embedder"]) {
+    rewriteLicense([],jenkinsLicense)
+}
+
+match("*:jna") {
+    rewriteLicense([],lgpl)
+}
+
+match(["org.jvnet.localizer:localizer","*:trilead-putty-extension"]) {
+    // see http://java.net/projects/localizer
+    // see http://java.net/projects/trilead-putty-extension/
+    rewriteLicense([],mitLicense);
+}
+
+match("org.codehaus.plexus:plexus-interactivity-api") {
+    rewriteLicense([],mitLicense)
+}
+
+match("de.zeigermann.xml:xml-im-exporter:1.1") {
+    rewriteLicense([],license("BSD License","http://xml-im-exporter.cvs.sourceforge.net/viewvc/xml-im-exporter/xml-im-exporter/Copying.txt?revision=1.3&view=markup"))
+}
+
+
+
+//
+// Choose from multi-licensed modules
+//==========================================================================
+
+match("*:jna-posix") {
+    accept("GNU Lesser General Public License Version 2.1")
+}
diff --git a/maven-plugin/pom.xml b/maven-plugin/pom.xml
index b597d8c4a8452d747f07e23e557de529ff267ff2..ca0e8e533095178c569423109a288822eec284f4 100644
--- a/maven-plugin/pom.xml
+++ b/maven-plugin/pom.xml
@@ -193,7 +193,7 @@ THE SOFTWARE.
     <dependency>
       <groupId>org.jenkins-ci.lib</groupId>
       <artifactId>lib-jenkins-maven-artifact-manager</artifactId>
-      <version>1.1</version>
+      <version>1.2</version>
     </dependency>                
     <dependency>
       <groupId>commons-io</groupId>
@@ -288,13 +288,20 @@ THE SOFTWARE.
             <goals>
               <goal>generate</goal>
             </goals>
-            <configuration>
+              <configuration>
               <fileMask>Messages.properties</fileMask>
               <outputDirectory>target/generated-sources/localizer</outputDirectory>
             </configuration>
           </execution>
         </executions>
       </plugin>
+      <plugin><!-- generate licenses.xml -->
+        <groupId>com.cloudbees</groupId>
+        <artifactId>maven-license-plugin</artifactId>
+        <configuration>
+          <generateLicenseXml>target/${project.artifactId}/WEB-INF/licenses.xml</generateLicenseXml>
+        </configuration>
+      </plugin>
       <plugin>
         <groupId>org.jvnet.maven-antrun-extended-plugin</groupId>
         <artifactId>maven-antrun-extended-plugin</artifactId>
diff --git a/pom.xml b/pom.xml
index 1021d4667a55fe94be27b8bb647233d37ef70741..e5c85545b657602a2058e07d77bd527bdd377b3d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -161,6 +161,23 @@ THE SOFTWARE.
             </dependency>
           </dependencies>
         </plugin>
+        <plugin>
+          <groupId>com.cloudbees</groupId>
+          <artifactId>maven-license-plugin</artifactId>
+          <version>1.0</version>
+          <executions>
+            <execution>
+              <goals>
+                <goal>process</goal>
+              </goals>
+              <phase>compile</phase>
+              <configuration>
+                <requireCompleteLicenseInfo>true</requireCompleteLicenseInfo>
+                <completer>../licenseCompleter.groovy</completer>
+              </configuration>
+            </execution>
+          </executions>
+        </plugin>
       </plugins>
     </pluginManagement>