[SPARK-27180][BUILD][YARN] Fix testing issues with yarn module in Hadoop-3

dev/.rat-excludes

@@ -115,3 +115,5 @@ structured-streaming/*
 kafka-source-initial-offset-version-2.1.0.bin
 kafka-source-initial-offset-future-version.bin
 vote.tmpl
+SessionManager.java
+SessionHandler.java

resource-managers/yarn/pom.xml

@@ -29,7 +29,7 @@
   <name>Spark Project YARN</name>
   <properties>
     <sbt.project.name>yarn</sbt.project.name>
-    <jersey-1.version>1.9</jersey-1.version>
+    <jersey-1.version>1.19</jersey-1.version>
   </properties>
 
   <dependencies>
@@ -166,6 +166,12 @@
        <scope>test</scope>
        <version>${jersey-1.version}</version>
      </dependency>
+     <dependency>
+       <groupId>com.sun.jersey</groupId>
+       <artifactId>jersey-servlet</artifactId>
+       <scope>test</scope>
+       <version>${jersey-1.version}</version>
+     </dependency>
 
     <!-- These dependencies are duplicated from core, because dependencies in the "provided"
     scope are not transitive.-->

resource-managers/yarn/src/test/java/org/apache/hadoop/net/ServerSocketUtil.java

@@ -0,0 +1,132 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.net;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.util.Random;
+
+/**
+ * Copied from
+ * hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/net/ServerSocketUtil.java
+ * for Hadoop-3.x testing
+ */
+public class ServerSocketUtil {
+
+  private static final Logger LOG = LoggerFactory.getLogger(ServerSocketUtil.class);
+  private static Random rand = new Random();
+
+  /**
+   * Port scan & allocate is how most other apps find ports
+   *
+   * @param port given port
+   * @param retries number of retries
+   * @return
+   * @throws IOException
+   */
+  public static int getPort(int port, int retries) throws IOException {
+    int tryPort = port;
+    int tries = 0;
+    while (true) {
+      if (tries > 0 || tryPort == 0) {
+        tryPort = port + rand.nextInt(65535 - port);
+      }
+      if (tryPort == 0) {
+        continue;
+      }
+      try (ServerSocket s = new ServerSocket(tryPort)) {
+        LOG.info("Using port " + tryPort);
+        return tryPort;
+      } catch (IOException e) {
+        tries++;
+        if (tries >= retries) {
+          LOG.info("Port is already in use; giving up");
+          throw e;
+        } else {
+          LOG.info("Port is already in use; trying again");
+        }
+      }
+    }
+  }
+
+  /**
+   * Check whether port is available or not.
+   *
+   * @param port given port
+   * @return
+   */
+  private static boolean isPortAvailable(int port) {
+    try (ServerSocket s = new ServerSocket(port)) {
+      return true;
+    } catch (IOException e) {
+      return false;
+    }
+  }
+
+  /**
+   * Wait till the port available.
+   *
+   * @param port given port
+   * @param retries number of retries for given port
+   * @return
+   * @throws InterruptedException
+   * @throws IOException
+   */
+  public static int waitForPort(int port, int retries)
+          throws InterruptedException, IOException {
+    int tries = 0;
+    while (true) {
+      if (isPortAvailable(port)) {
+        return port;
+      } else {
+        tries++;
+        if (tries >= retries) {
+          throw new IOException(
+                  "Port is already in use; giving up after " + tries + " times.");
+        }
+        Thread.sleep(1000);
+      }
+    }
+  }
+
+  /**
+   * Find the specified number of unique ports available.
+   * The ports are all closed afterwards,
+   * so other network services started may grab those same ports.
+   *
+   * @param numPorts number of required port nubmers
+   * @return array of available port numbers
+   * @throws IOException
+   */
+  public static int[] getPorts(int numPorts) throws IOException {
+    ServerSocket[] sockets = new ServerSocket[numPorts];
+    int[] ports = new int[numPorts];
+    for (int i = 0; i < numPorts; i++) {
+      ServerSocket sock = new ServerSocket(0);
+      sockets[i] = sock;
+      ports[i] = sock.getLocalPort();
+    }
+    for (ServerSocket sock : sockets) {
+      sock.close();
+    }
+    return ports;
+  }
+}