diff --git a/src/Makefile b/src/Makefile
index e4f845d..a6c0cb6 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -36,7 +36,7 @@ org_pEp_jniadapter_AbstractEngine.o: %.o: %.cc %.h throw_pEp_exception.hh jniuti
 
 org_pEp_jniadapter_Engine.o org_pEp_jniadapter_Message.o: %.o: %.cc %.h
 
-$(LIBRARY): org_pEp_jniadapter_AbstractEngine.o org_pEp_jniadapter_Engine.o org_pEp_jniadapter_Message.o throw_pEp_exception.o jniutils.o
+$(LIBRARY): org_pEp_jniadapter_AbstractEngine.o org_pEp_jniadapter_Engine.o org_pEp_jniadapter_Message.o throw_pEp_exception.o jniutils.o basic_api.o
 	ar -r $@ *.o
 
 org/pEp/jniadapter/pEpException.java: pEp.yml2 gen_java_exceptions.ysl2
@@ -59,6 +59,8 @@ throw_pEp_exception.cc throw_pEp_exception.hh: pEp.yml2 gen_throw_pEp_exception.
 
 throw_pEp_exception.o: throw_pEp_exception.cc throw_pEp_exception.hh
 
+basic_api.o: basic_api.cc jniutils.hh throw_pEp_exception.hh
+
 .PHONY: clean
 
 clean:
diff --git a/src/gen_java_Engine.ysl2 b/src/gen_java_Engine.ysl2
index 6366b4c..0e2c86b 100644
--- a/src/gen_java_Engine.ysl2
+++ b/src/gen_java_Engine.ysl2
@@ -18,6 +18,12 @@ tstylesheet {
                 public «$cname»() throws pEpException { }
 
                 `` apply "method", mode=plain
+                private native byte[] trustwords(_Identity ident);
+
+                public String trustwords(Identity ident) {
+                    _Identity _ident = new _Identity(ident);
+                    return AbstractEngine.toUTF16(trustwords(_ident));
+                }
             }
 
             ||
@@ -47,6 +53,7 @@ tstylesheet {
 
     template "method", mode=plain {
         const "convert", "count(parm/stringlist|parm/string|parm/identity) > 0";
+        const "convertreturn", "count(parm[returns]/stringlist|parm[returns]/string|parm[returns]/identity) > 0";
         const "singlereturn", "count(parm/creates|parm/returns) = 1";
         const "multireturn", "count(parm/creates|parm/returns) > 1";
 
@@ -85,7 +92,12 @@ tstylesheet {
             | {
             apply "parm", mode=convertIn;
 
-            if "$singlereturn" |> return _«@name»(`apply "parm[in]", mode=call;`);
+            if "$singlereturn" choose {
+                when "$convertreturn"
+                    |> return AbstractEngine.toUTF16(_«@name»(`apply "parm[in]", mode=call;`));
+                otherwise
+                    |> return _«@name»(`apply "parm[in]", mode=call;`);
+            }
 
             if "$multireturn"
             ||
@@ -97,9 +109,11 @@ tstylesheet {
 
             ||
             }
-
             ||
         }
+        ||
+
+        ||
     }
 
     template "parm", mode=java {