feature(genjava): add a generator for the empty type

Author: Alexander Pann

code/languages/org.iets3.opensource/languages/org.iets3.core.expr.genjava.base/generator/template/[email protected]

@@ -17115,6 +17115,31 @@
         </node>
       </node>
     </node>
+    <node concept="3aamgX" id="6I8PWVHPCMw" role="3aUrZf">
+      <property role="36QftV" value="true" />
+      <ref role="30HIoZ" to="hm2y:3tcv7J0pmjC" resolve="EmptyType" />
+      <node concept="1Koe21" id="6I8PWVHPCMx" role="1lVwrX">
+        <node concept="3clFb_" id="6I8PWVHPCMy" role="1Koe22">
+          <property role="DiZV1" value="false" />
+          <property role="od$2w" value="false" />
+          <property role="2aFKle" value="false" />
+          <property role="TrG5h" value="foo" />
+          <node concept="3Tm1VV" id="6I8PWVHPCMz" role="1B3o_S" />
+          <node concept="3cqZAl" id="6I8PWVHPCM$" role="3clF45" />
+          <node concept="3clFbS" id="6I8PWVHPCM_" role="3clF47">
+            <node concept="3cpWs8" id="6I8PWVHPCMA" role="3cqZAp">
+              <node concept="3cpWsn" id="6I8PWVHPCMB" role="3cpWs9">
+                <property role="TrG5h" value="l" />
+                <node concept="3uibUv" id="6I8PWVHPCMC" role="1tU5fm">
+                  <ref role="3uigEE" to="wyt6:~Object" resolve="Object" />
+                  <node concept="raruj" id="6I8PWVHPCMD" role="lGtFl" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+    </node>
     <node concept="gft3U" id="10wUh3ORTSh" role="jxRDz">
       <node concept="Xl_RD" id="10wUh3ORTSi" role="gfFT$">
         <property role="Xl_RC" value="ERROR" />