diff --git a/lib/hcl-s.c b/lib/hcl-s.c
index e77f8e7..f122f7a 100644
--- a/lib/hcl-s.c
+++ b/lib/hcl-s.c
@@ -1916,6 +1916,10 @@ hcl_server_t* hcl_server_open (hcl_mmgr_t* mmgr, hcl_oow_t xtnsize, hcl_server_p
 	vmprim.vm_gettime = vm_gettime;
 	vmprim.vm_sleep = vm_sleep;
 
+#if defined(USE_LTDL)
+	lt_dlinit ();
+#endif
+
 	hcl = hcl_open(mmgr, HCL_SIZEOF(*xtn), 2048, &vmprim, errnum);
 	if (!hcl) goto oops;
 
@@ -1992,7 +1996,11 @@ oops:
 	/* NOTE: pipe should be closed if jump to here is made after pipe() above */
 	if (tmr) hcl_tmr_close (tmr);
 	if (hcl) hcl_close (hcl);
+#if defined(USE_LTDL)
+	lt_dlexit ();
+#endif
 	if (server) HCL_MMGR_FREE (mmgr, server);
+
 	return HCL_NULL;
 }
 
@@ -2019,6 +2027,11 @@ void hcl_server_close (hcl_server_t* server)
 
 	hcl_tmr_close (server->tmr);
 	hcl_close (server->dummy_hcl);
+
+#if defined(USE_LTDL)
+	lt_dlexit ();
+#endif
+
 	HCL_MMGR_FREE (server->mmgr, server);
 }
 
diff --git a/lib/main-j.c b/lib/main-j.c
index 3f235a7..4c704cc 100644
--- a/lib/main-j.c
+++ b/lib/main-j.c
@@ -320,7 +320,8 @@ int main (int argc, char* argv[])
 	json_xtn = hcl_json_getxtn(json);
 	json_xtn->logmask = HCL_LOG_ALL_LEVELS | HCL_LOG_ALL_TYPES;
 
-	p = "[ \"ab\\xab\\uC88B\\uC544\\uC6A9c\", \"kaden\", \"iron\", true, { \"null\": \"a\\1bc\", \"123\": \"AA20AA\", \"10\": -0.123, \"way\": '\\uC88B' } ]";
+	//p = "[ \"ab\\xab\\uC88B\\uC544\\uC6A9c\", \"kaden\", \"iron\", true, { \"null\": \"a\\1bc\", \"123\": \"AA20AA\", \"10\": -0.123, \"way\": '\\uC88B' } ]";
+	p = "{ \"result\": \"SUCCESS\", \"message\": \"1 clients\", \"sessions\": [] }";
 
 	if (hcl_json_feed(json, p, strlen(p), &xlen) <= -1)
 	{	
diff --git a/lib/main.c b/lib/main.c
index 84a6750..b772730 100644
--- a/lib/main.c
+++ b/lib/main.c
@@ -1663,7 +1663,7 @@ static void print_synerr (hcl_t* hcl)
  
 int main (int argc, char* argv[])
 {
-	hcl_t* hcl;
+	hcl_t* hcl = HCL_NULL;
 	xtn_t* xtn;
 	hcl_vmprim_t vmprim;
 	hcl_cb_t hclcb;
@@ -1762,11 +1762,15 @@ int main (int argc, char* argv[])
 	vmprim.vm_gettime = vm_gettime;
 	vmprim.vm_sleep = vm_sleep;
 
+#if defined(USE_LTDL)
+	lt_dlinit ();
+#endif
+
 	hcl = hcl_open (&sys_mmgr, HCL_SIZEOF(xtn_t), memsize, &vmprim, HCL_NULL);
 	if (!hcl)
 	{
-		printf ("cannot open hcl\n");
-		return -1;
+		printf ("ERROR: cannot open hcl\n");
+		goto oops;
 	}
 
 	{
@@ -1805,11 +1809,7 @@ int main (int argc, char* argv[])
 
 	if (logopt)
 	{
-		if (handle_logopt (hcl, logopt) <= -1) 
-		{
-			hcl_close (hcl);
-			return -1;
-		}
+		if (handle_logopt (hcl, logopt) <= -1) goto oops;
 	}
 	else
 	{
@@ -1820,26 +1820,20 @@ int main (int argc, char* argv[])
 #if defined(HCL_BUILD_DEBUG)
 	if (dbgopt)
 	{
-		if (handle_dbgopt (hcl, dbgopt) <= -1)
-		{
-			hcl_close (hcl);
-			return -1;
-		}
+		if (handle_dbgopt (hcl, dbgopt) <= -1) goto oops;
 	}
 #endif
 
 	if (hcl_ignite(hcl) <= -1)
 	{
 		hcl_logbfmt (hcl, HCL_LOG_STDERR, "cannot ignite hcl - [%d] %js\n", hcl_geterrnum(hcl), hcl_geterrmsg(hcl));
-		hcl_close (hcl);
-		return -1;
+		goto oops;
 	}
 
 	if (hcl_addbuiltinprims(hcl) <= -1)
 	{
 		hcl_logbfmt (hcl, HCL_LOG_STDERR, "cannot add builtin primitives - [%d] %js\n", hcl_geterrnum(hcl), hcl_geterrmsg(hcl));
-		hcl_close (hcl);
-		return -1;
+		goto oops;
 	}
 
 	xtn->read_path = argv[opt.ind++];
@@ -1848,8 +1842,7 @@ int main (int argc, char* argv[])
 	if (hcl_attachio(hcl, read_handler, print_handler) <= -1)
 	{
 		hcl_logbfmt (hcl, HCL_LOG_STDERR, "ERROR: cannot attach input stream - [%d] %js\n", hcl_geterrnum(hcl), hcl_geterrmsg(hcl));
-		hcl_close (hcl);
-		return -1;
+		goto oops;
 	}
 
 	{
@@ -1858,8 +1851,7 @@ int main (int argc, char* argv[])
 		if (!xtn->sym_errstr)
 		{
 			hcl_logbfmt (hcl, HCL_LOG_STDERR, "ERROR: cannot create the ERRSTR symbol - [%d] %js\n", hcl_geterrnum(hcl), hcl_geterrmsg(hcl));
-			hcl_close (hcl);
-			return -1;
+			goto oops;
 		}
 		HCL_OBJ_SET_FLAGS_KERNEL (xtn->sym_errstr, 1);
 	}
@@ -1982,10 +1974,17 @@ count++;
 	
 	set_signal_to_default (SIGINT);
 	hcl_close (hcl);
+
+#if defined(USE_LTDL)
+	lt_dlexit ();
+#endif
 	return 0;
 
 oops:
-	set_signal_to_default (SIGINT);
-	hcl_close (hcl);
+	set_signal_to_default (SIGINT); /* harmless to call multiple times without set_signal() */
+	if (hcl) hcl_close (hcl);
+#if defined(USE_LTDL)
+	lt_dlexit ();
+#endif
 	return -1;
 }