Make sure POSTS that fail are immediately cleaned up

CHANGES

@@ -2,7 +2,9 @@ jsoup changelog
 
 *** Release 1.14.2 [PENDING]
   * Bugfix: corrected a potential case of the parser input stream not being closed immediately on a read exception.
-
+
+  * Bugfix: when making a HTTP POST, if the request write fails, make sure the connection is immediately cleaned up.
+
   * Bugfix [Fuzz]: fixed a slow parse when a tag has thousands of null characters in it.
     <https://github.com/jhy/jsoup/issues/1580>
 

src/main/java/org/jsoup/helper/HttpConnection.java

@@ -857,8 +857,10 @@ else if (methodHasBody)
             Response res = null;
             try {
                 conn.connect();
-                if (conn.getDoOutput())
-                    writePost(req, conn.getOutputStream(), mimeBoundary);
+                if (conn.getDoOutput()) {
+                    try { writePost(req, conn.getOutputStream(), mimeBoundary); }
+                    catch (IOException e) { conn.disconnect(); throw e; }
+                }
 
                 int status = conn.getResponseCode();
                 res = new Response(conn, req, previousResponse);