Tests: added Java threading tests.

test/java/threads/app.java

@@ -0,0 +1,32 @@
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/")
+public class app extends HttpServlet
+{
+    @Override
+    public void doGet(HttpServletRequest request, HttpServletResponse response)
+        throws IOException, ServletException
+    {
+        int delay = 0;
+
+        String x_delay = request.getHeader("X-Delay");
+        if (x_delay != null) {
+            delay = Integer.parseInt(x_delay);
+        }
+
+        try {
+            Thread.sleep(delay * 1000);
+        } catch (InterruptedException ex) {
+            ex.printStackTrace();
+        }
+
+        response.addHeader("X-Thread", "" + Thread.currentThread().getId());
+    }
+}

test/test_java_application.py

@@ -1012,3 +1012,44 @@ class TestJavaApplication(TestApplicationJava):
             )
             is not None
         ), 'file created'
+
+    def test_java_application_threads(self):
+        self.load('threads')
+
+        assert 'success' in self.conf(
+            '4', 'applications/threads/threads'
+        ), 'configure 4 threads'
+
+        socks = []
+
+        for i in range(4):
+            (_, sock) = self.get(
+                headers={
+                    'Host': 'localhost',
+                    'X-Delay': '2',
+                    'Connection': 'close',
+                },
+                no_recv=True,
+                start=True,
+            )
+
+            socks.append(sock)
+
+            time.sleep(0.25) # required to avoid greedy request reading
+
+        threads = set()
+
+        for sock in socks:
+            resp = self.recvall(sock).decode('utf-8')
+
+            self.log_in(resp)
+
+            resp = self._resp_to_dict(resp)
+
+            assert resp['status'] == 200, 'status'
+
+            threads.add(resp['headers']['X-Thread'])
+
+            sock.close()
+
+        assert len(socks) == len(threads), 'threads differs'