--- a/src/java.base/windows/native/libnet/NetworkInterface.c	Fri Jun 15 14:19:51 2018 -0700
+++ b/src/java.base/windows/native/libnet/NetworkInterface.c	Wed Jun 20 18:02:22 2018 -0700
@@ -280,6 +280,7 @@
             if (curr->name == NULL || curr->displayName == NULL) {
                 if (curr->name) free(curr->name);
                 if (curr->displayName) free(curr->displayName);
+                free(curr);
                 curr = NULL;
             }
         }
@@ -586,7 +587,10 @@
             /* default ctor will set family to AF_INET */
 
             setInetAddress_addr(env, iaObj, ntohl(addrs->addr.sa4.sin_addr.s_addr));
-            JNU_CHECK_EXCEPTION_RETURN(env, NULL);
+            if ((*env)->ExceptionCheck(env)) {
+                free_netaddr(netaddrP);
+                return NULL;
+            }
             if (addrs->mask != -1) {
               ibObj = (*env)->NewObject(env, ni_ibcls, ni_ibctrID);
               if (ibObj == NULL) {
@@ -600,7 +604,10 @@
                 return NULL;
               }
               setInetAddress_addr(env, ia2Obj, ntohl(addrs->brdcast.sa4.sin_addr.s_addr));
-              JNU_CHECK_EXCEPTION_RETURN(env, NULL);
+              if ((*env)->ExceptionCheck(env)) {
+                  free_netaddr(netaddrP);
+                  return NULL;
+              }
               (*env)->SetObjectField(env, ibObj, ni_ibbroadcastID, ia2Obj);
               (*env)->SetShortField(env, ibObj, ni_ibmaskID, addrs->mask);
               (*env)->SetObjectArrayElement(env, bindsArr, bind_index++, ibObj);
@@ -611,6 +618,7 @@
             if (iaObj) {
                 jboolean ret = setInet6Address_ipaddress(env, iaObj,  (jbyte *)&(addrs->addr.sa6.sin6_addr.s6_addr));
                 if (ret == JNI_FALSE) {
+                    free_netaddr(netaddrP);
                     return NULL;
                 }