Fixed blacklist_retreive

src/gen_cpp_Engine.ysl2

@@ -11,6 +11,7 @@ tstylesheet {
         ||
         #include <assert.h>
         #include <pEp/message_api.h>
+        #include <pEp/blacklist.h>
         #include "org_pEp_jniadapter_«@name».h"
         #include "throw_pEp_exception.hh"
         #include "jniutils.hh"
@@ -83,6 +84,11 @@ tstylesheet {
                     with "sig", "'(J)V'";
                 }
 
+                when "$rettype = 'stringlist'" apply "parm[returns|creates]", mode=return{
+                    with "name", "'result'";
+                    with "retname", "$retname";
+                }
+
                 otherwise error | # not implemented: return type "«$rettype»"
             }
         }

src/pEp.yml2

@@ -100,9 +100,9 @@ namespace pEp {
                 returns Color color
             );
 
-        // method blacklist_retrive(
-        //	    creates stringlist blacklist
-        //    );
+        method blacklist_retrieve(
+                returns stringlist blacklist
+            );
 
         basic string trustwords(identity ident);
         basic identity myself(identity ident);

src/types_java.ysl2

@@ -23,7 +23,7 @@ function "toJavaDeclare" {
     param "type";
 
     choose {
-        when "$type='stringlist'" error | # cannot declare "stringlist"
+        when "$type='stringlist'" > Vector<String>
         when "$type='string'" error | # cannot declare "string"
         when "$type='message'" > Message
         when "$type='identity'" > _Identity