gnu: Add java-jdom2.

* gnu/packages/xml.scm (java-jdom2): New variable.

gnu: Add java-jettison.

* gnu/packages/xml.scm (java-jettison): New variable.

gnu: Add java-stax.

* gnu/packages/xml.scm (java-stax): New variable.

gnu: Add java-kxml2.

* gnu/packages/xml.scm (java-kxml2): New variable.

gnu: Add java-jaxen.

* gnu/packages/xml.scm (java-jaxen): New variable.

gnu: Add java-dom4j.

gnu/packages/xml.scm (java-dom4j): New variable.

gnu: Add java-xmlpull2.

* gnu/packages/xml.scm (java-xmlpull2): New variable.

gnu: Add java-xpp3.

gnu/packages/xml.scm (java-xpp3): New variable.

gnu: Add java-xsdlib.

* gnu/packages/xml.scm (java-xsdlib): New variable.

gnu: Add java-xom.

* gnu/packages/xml.scm (java-xom): New variable.

gnu: Add java-jaxen-bootstrap.

* gnu/packages/xml.scm (java-jaxen-bootstrap): New variable.

gnu: Add java-xerces.

* gnu/packages/java.scm (java-xerces): New variable.
* gnu/packages/patches/java-xerces-bootclasspath.patch: New file.
* gnu/packages/patches/java-xerces-build_dont_unzip.patch: New file.
* gnu/packages/patches/java-xerces-xjavac_taskdef.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add them.

gnu: Add java-apache-xml-commons-resolver.

* gnu/packages/xml.scm (java-apache-xml-commons-resolver): New variable.

gnu: Add java-jaxp.

* gnu/packages/xml.scm (java-jaxp): New variable.

licenses: Add W3C license.

* gnu/license.scm (w3c): New variable.

gnu: Add java-joda-time.

* gnu/packages/java.scm (java-joda-time): New variable.

gnu: Add java-joda-convert.

* gnu/packages/java.scm (java-joda-convert): New variable.

gnu: Add java-cdi-api.

* gnu/packages/java.scm (java-cdi-api): New variable.

gnu: Add java-jboss-interceptors-api-spec.

* gnu/packages/java.scm (java-jboss-interceptors-api-spec): New
variable.

gnu: Add java-jboss-el-api-spec.

* gnu/packages/java.scm (java-jboss-el-api-spec): New variable.