# HG changeset patch
# User dfuchs
# Date 1567615013 -3600
# Node ID 9ae63aa9fc22dcb7ce211f5a50152f916badd21b
# Parent  fbbe6672ae15deaf350a9e935290a36f57ba9c25
8171405: java/net/URLConnection/ResendPostBody.java failed with "Error while cleaning up threads after test"
Summary: test cleaned up to improve safe termination
Reviewed-by: michaelm, vtewari, dfuchs
Contributed-by: Julia Boes <julia.boes@oracle.com>

diff -r fbbe6672ae15 -r 9ae63aa9fc22 test/jdk/java/net/URLConnection/ResendPostBody.java
--- a/test/jdk/java/net/URLConnection/ResendPostBody.java	Wed Sep 04 16:42:36 2019 +0100
+++ b/test/jdk/java/net/URLConnection/ResendPostBody.java	Wed Sep 04 17:36:53 2019 +0100
@@ -51,100 +51,109 @@
 
     static class Server extends Thread {
 
-        InputStream     in;
-        OutputStream out;
-        Socket  sock;
-        StringBuffer response;
-        ServerSocket server;
+        private InputStream in;
+        private OutputStream out;
+        private Socket sock;
+        private StringBuffer response;
+        private ServerSocket server;
 
-        Server (ServerSocket s) throws IOException
-        {
+        Server(ServerSocket s) throws IOException {
             server = s;
         }
 
-        void waitFor (String s) throws IOException
-        {
-            byte[] w = s.getBytes ();
-            for(int c=0; c<w.length; c++ ) {
+        void waitFor(String s) throws IOException {
+            byte[] w = s.getBytes();
+            for (int c = 0; c < w.length; c++) {
                 byte expected = w[c];
                 int b = in.read();
                 if (b == -1) {
-                    acceptConn ();
+                    acceptConn();
                 }
-                if ((byte)b != expected) {
+                if ((byte) b != expected) {
                     c = 0;
                 }
             }
         }
 
-        boolean done = false;
+        private boolean done = false;
 
-        public synchronized boolean finished () {
+        public synchronized boolean finished() {
             return done;
         }
 
-        public synchronized void setFinished (boolean b) {
+        public synchronized void setFinished(boolean b) throws IOException {
             done = b;
+            this.closeConn();
+            server.close();
         }
 
-        void acceptConn () throws IOException
-        {
-            sock = server.accept ();
-            in = sock.getInputStream ();
-            out = sock.getOutputStream ();
+        void acceptConn() throws IOException {
+            sock = server.accept();
+            in = sock.getInputStream();
+            out = sock.getOutputStream();
+        }
+
+        void closeConn() throws IOException {
+            in.close();
+            out.close();
+            sock.close();
         }
 
-        public void run () {
+        public void run() {
             try {
-                response = new StringBuffer (1024);
-                acceptConn ();
-                waitFor ("POST");
-                waitFor ("ZZZ");
-                Thread.sleep (500);
-                sock.close ();
-                acceptConn ();
-                waitFor ("POST");
-                waitFor ("ZZZ");
-                response.append ("HTTP/1.1 200 OK\r\n");
-                response.append ("Server: Microsoft-IIS/5.0");
-                response.append ("Date: Wed, 26 Jul 2000 14:17:04 GMT\r\n\r\n");
-                out.write (response.toString().getBytes());
+                response = new StringBuffer(1024);
+                acceptConn();
+                waitFor("POST");
+                waitFor("ZZZ");
+                Thread.sleep(500);
+                sock.close();
+                acceptConn();
+                waitFor("POST");
+                waitFor("ZZZ");
+                response.append("HTTP/1.1 200 OK\r\n");
+                response.append("Server: Microsoft-IIS/5.0");
+                response.append("Date: Wed, 26 Jul 2000 14:17:04 GMT\r\n\r\n");
+                out.write(response.toString().getBytes());
+                out.flush();
                 while (!finished()) {
-                    Thread.sleep (1000);
+                    Thread.sleep(1000);
                 }
-                out.close();
             } catch (Exception e) {
-                System.err.println ("Server Exception: " + e);
+                if (!done) {
+                    System.err.println("Server Exception: " + e);
+                }
             } finally {
-                try { server.close(); } catch (IOException unused) {}
+                try {
+                    closeConn();
+                } catch (IOException ioe) {
+                    if (!done) {
+                        ioe.printStackTrace();
+                    }
+                }
             }
         }
     }
 
-    ServerSocket ss;
-    Server server;
+    private ServerSocket ss;
+    private Server server;
 
     public static void main(String[] args) throws Exception {
-        try {
-            if (args.length == 1 && args[0].equals ("-i")) {
-                System.out.println ("Press return when ready");
-                System.in.read ();
-                System.out.println ("Done");
-            }
-            ResendPostBody t = new ResendPostBody ();
-            t. execute ();
-        } catch (IOException  e) {
-            System.out.println ("IOException");
+        if (args.length == 1 && args[0].equals("-i")) {
+            System.out.println("Press return when ready");
+            System.in.read();
+            System.out.println("Done");
         }
+        ResendPostBody t = new ResendPostBody();
+        t.execute();
     }
 
-    public void execute () throws Exception {
-
+    public void execute() throws Exception {
         byte b[] = "X=ABCDEFGHZZZ".getBytes();
 
         ss = new ServerSocket(0, 0, InetAddress.getLoopbackAddress());
-        server = new Server (ss);
-        server.start ();
+        server = new Server(ss);
+        server.start();
+
         /* Get the URL */
         URL url = URIBuilder.newBuilder()
                 .scheme("http")
@@ -152,29 +161,29 @@
                 .port(ss.getLocalPort())
                 .path("/test")
                 .toURL();
-        HttpURLConnection conURL =  (HttpURLConnection)url.openConnection();
+        HttpURLConnection conURL = (HttpURLConnection) url.openConnection(Proxy.NO_PROXY);
 
         conURL.setDoOutput(true);
         conURL.setDoInput(true);
         conURL.setAllowUserInteraction(false);
         conURL.setUseCaches(false);
         conURL.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
-        conURL.setRequestProperty("Content-Length", ""+b.length);
+        conURL.setRequestProperty("Content-Length", "" + b.length);
         conURL.setRequestProperty("Connection", "Close");
 
         /* POST some data */
-
         DataOutputStream OutStream = new DataOutputStream(conURL.getOutputStream());
-                          OutStream.write(b, 0, b.length);
+        OutStream.write(b, 0, b.length);
         OutStream.flush();
         OutStream.close();
 
         /* Read the response */
+        int resp = conURL.getResponseCode();
 
-        int resp = conURL.getResponseCode ();
-        server.setFinished (true);
+        server.setFinished(true);    // Set finished and close ServerSocket
+        server.join();            // Join server thread
 
         if (resp != 200)
-            throw new RuntimeException ("Response code was not 200: " + resp);
-  }
+            throw new RuntimeException("Response code was not 200: " + resp);
+    }
 }