try xerces 2.9.0 again
diff --git a/features/org.eclipse.wst.xml_core.feature/feature.xml b/features/org.eclipse.wst.xml_core.feature/feature.xml
index 18b7a8c..abf4933 100644
--- a/features/org.eclipse.wst.xml_core.feature/feature.xml
+++ b/features/org.eclipse.wst.xml_core.feature/feature.xml
@@ -23,15 +23,8 @@
 
    <requires>
       <import plugin="org.eclipse.osgi"/>
-      <import plugin="org.apache.xml.resolver"/>
-      <import plugin="org.eclipse.wst.xml.core" version="1.1.0" />
-      <import plugin="org.eclipse.wst.sse.core" version="1.1.0" />
-      <import plugin="org.apache.xerces" version="2.8.0" match="compatible"/>
       <import plugin="org.eclipse.core.runtime" version="3.2.0" match="compatible"/>
       <import plugin="org.eclipse.core.resources" version="3.2.0" match="compatible"/>
-      <import plugin="org.eclipse.wst.common.uriresolver" version="1.1.0" />
-      <import plugin="org.eclipse.wst.validation" version="1.1.0" />
-      <import plugin="org.eclipse.wst.common.core" version="1.1.0" />
       <import plugin="com.ibm.icu" version="3.4.4" match="compatible"/>
       <import plugin="org.eclipse.emf.ecore" version="2.2.0" match="compatible"/>
       <import plugin="org.eclipse.jface.text" version="3.2.0" match="compatible"/>
@@ -40,20 +33,39 @@
       <import plugin="org.eclipse.text" version="3.2.0" match="compatible"/>
       <import plugin="org.eclipse.core.filebuffers" version="3.2.0" match="compatible"/>
       <import plugin="org.eclipse.emf.common" version="2.2.0" match="compatible"/>
+      <import plugin="org.eclipse.wst.xml.core" version="1.1.0" match="equivalent"/>
+      <import plugin="org.eclipse.wst.sse.core" version="1.1.0" match="equivalent"/>
+      <import plugin="org.eclipse.wst.common.uriresolver" version="1.1.0" match="equivalent"/>
+      <import plugin="org.eclipse.wst.common.core" version="1.1.0" match="equivalent"/>
+      <import plugin="org.eclipse.wst.validation" version="1.1.0" match="equivalent"/>
    </requires>
 
    <plugin
+         id="javax.xml"
+         download-size="190"
+         install-size="190"
+         version="1.3.4.qualifier"
+         unpack="false"/>
+
+   <plugin
          id="org.apache.xml.resolver"
-         download-size="71"
-         install-size="71"
-         version="1.1.0.qualifier"
+         download-size="96"
+         install-size="96"
+         version="1.2.0.qualifier"
+         unpack="false"/>
+
+   <plugin
+         id="org.apache.xml.serializer"
+         download-size="270"
+         install-size="270"
+         version="2.7.1.qualifier"
          unpack="false"/>
 
    <plugin
          id="org.apache.xerces"
          download-size="1200"
          install-size="1200"
-         version="2.8.0.qualifier"
+         version="2.9.0.qualifier"
          unpack="false"/>
 
    <plugin