diff --git a/org.zkoss.zk.library/.classpath b/org.zkoss.zk.library/.classpath
index ca4bd397ab..c86ca9328b 100644
--- a/org.zkoss.zk.library/.classpath
+++ b/org.zkoss.zk.library/.classpath
@@ -1,30 +1,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry exported="true" kind="lib" path="lib/calendar.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/ckez.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/calendar.jar" sourcepath="lib/src/calendar-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/ckez.jar" sourcepath="lib/src/ckez-sources.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/commons-el.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/commons-fileupload.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/commons-io.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/Filters.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/gmapsz.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/jruby-complete.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/gmapsz.jar" sourcepath="lib/src/gmapsz-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/jruby-complete.jar" sourcepath="lib/src/jruby-complete-sources.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/js.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/json_simple.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/junit.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/jxl.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/jython.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/jython.jar" sourcepath="lib/src/jython-sources.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/mvel.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/ognl.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/timelinez.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/timeplotz.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zcommon.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zel.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zhtml.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zk.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zkbind.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zkplus.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zul.jar"/>
-	<classpathentry exported="true" kind="lib" path="lib/zweb.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/timelinez.jar" sourcepath="lib/src/timelinez-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/timeplotz.jar" sourcepath="lib/src/timeplotz-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zcommon.jar" sourcepath="lib/src/zcommon-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zel.jar" sourcepath="lib/src/zel-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zhtml.jar" sourcepath="lib/src/zhtml-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zk.jar" sourcepath="lib/src/zk-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zkbind.jar" sourcepath="lib/src/zkbind-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zkplus.jar" sourcepath="lib/src/zkplus-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zul.jar" sourcepath="lib/src/zul-sources.jar"/>
+	<classpathentry exported="true" kind="lib" path="lib/zweb.jar" sourcepath="lib/src/zweb-sources.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>