--- old/src/jdk.jdwp.agent/share/native/libdt_socket/socketTransport.c	2018-01-29 07:30:54.363041955 -0500
+++ new/src/jdk.jdwp.agent/share/native/libdt_socket/socketTransport.c	2018-01-29 07:30:53.965018782 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -241,7 +241,9 @@
 
     // getaddrinfo might return more than one address
     // but we are using first one only
-    return ((struct sockaddr_in *)(res->ai_addr))->sin_addr.s_addr;
+    uint32_t addr = ((struct sockaddr_in *)(res->ai_addr))->sin_addr.s_addr;
+    freeaddrinfo(res);
+    return addr;
 }
 
 static int
@@ -315,16 +317,25 @@
          */
         addr = dbgsysInetAddr(hostname);
         if (addr == 0xffffffff) {
-            struct hostent *hp = dbgsysGetHostByName(hostname);
-            if (hp == NULL) {
+            struct addrinfo hints;
+            struct addrinfo *results = NULL;
+            memset (&hints, 0, sizeof(hints));
+            hints.ai_family = AF_INET;
+            hints.ai_socktype = SOCK_STREAM;
+            hints.ai_protocol = IPPROTO_TCP;
+          
+            int ai = dbgsysGetAddrInfo(hostname, NULL, &hints, &results);
+
+            if (ai != 0) {
                 /* don't use RETURN_IO_ERROR as unknown host is normal */
-                setLastError(0, "gethostbyname: unknown host");
+                setLastError(0, "getaddrinfo: unknown host");
                 (*callback->free)(buf);
                 return JDWPTRANSPORT_ERROR_IO_ERROR;
             }
 
             /* lookup was successful */
-            memcpy(&(sa->sin_addr), hp->h_addr_list[0], hp->h_length);
+            sa->sin_addr =  ((struct sockaddr_in *)results->ai_addr)->sin_addr;
+            freeaddrinfo(results);
         } else {
             sa->sin_addr.s_addr = addr;
         }