--- nbproject/build-impl.xml
+++ nbproject/build-impl.xml
@@ -442,7 +442,7 @@
                 <copylibs compress="${jar.compress}" index="${jar.index}" jarfile="${dist.jar}" manifest="${manifest.file}" runtimeclasspath="${run.classpath.without.build.classes.dir}">
                     <fileset dir="${build.classes.dir}"/>
                     <manifest>
-                        <attribute name="Class-Path" value="${jar.classpath}"/>
+                        <attribute name="Class-Path" value=""/>
                         <customize/>
                     </manifest>
                 </copylibs>
@@ -577,7 +577,7 @@
     <target depends="init,compile,-pre-pre-jar,-pre-jar" if="do.archive+manifest.available+main.class" name="-do-jar-with-mainclass" unless="manifest.available+main.class+mkdist.available">
         <j2seproject1:jar manifest="${manifest.file}">
             <j2seproject1:manifest>
-                <j2seproject1:attribute name="Main-Class" value="${main.class}"/>
+                <j2seproject1:attribute name="Main-Class" value=""/>
             </j2seproject1:manifest>
         </j2seproject1:jar>
         <echo>To run this application from the command line without Ant, try:</echo>