Revert "refactor code"

This reverts commit 5ed800c.

Author: nidhiii-27

java-storage/google-cloud-storage/src/test/java/com/google/cloud/storage/it/runner/registry/TestBench.java

@@ -402,9 +402,8 @@ private void dumpServerLog(String prefix, File out) throws IOException {
   }
 
   private static int findFreePort() {
-    try (java.net.ServerSocket socket = new java.net.ServerSocket()) {
+    try (java.net.ServerSocket socket = new java.net.ServerSocket(0)) {
       socket.setReuseAddress(true);
-      socket.bind(new java.net.InetSocketAddress("127.0.0.1", 0));
       return socket.getLocalPort();
     } catch (java.io.IOException e) {
       throw new RuntimeException("Failed to find a free port", e);
@@ -452,8 +451,8 @@ public String toString() {
   }
 
   static final class Builder {
-    private static final String DEFAULT_BASE_URI = "http://localhost";
-    private static final String DEFAULT_GRPC_BASE_URI = "http://localhost";
+    private static final String DEFAULT_BASE_URI = "http://localhost:9000";
+    private static final String DEFAULT_GRPC_BASE_URI = "http://localhost:9005";
     private static final String DEFAULT_IMAGE_NAME;
     private static final String DEFAULT_IMAGE_TAG;
 
@@ -505,13 +504,16 @@ static final class Builder {
     private String containerName;
 
     private Builder() {
-      this(
-          false,
-          DEFAULT_BASE_URI + ":" + findFreePort(),
-          DEFAULT_GRPC_BASE_URI + ":" + findFreePort(),
-          DEFAULT_IMAGE_NAME,
-          DEFAULT_IMAGE_TAG,
-          DEFAULT_CONTAINER_NAME + "_" + java.util.UUID.randomUUID().toString().substring(0, 8));
+      int httpPort = findFreePort();
+      int grpcPort = findFreePort();
+      String uuid = java.util.UUID.randomUUID().toString().substring(0, 8);
+
+      this.ignorePullError = false;
+      this.baseUri = "http://127.0.0.1:" + httpPort;
+      this.gRPCBaseUri = "http://127.0.0.1:" + grpcPort;
+      this.dockerImageName = DEFAULT_IMAGE_NAME;
+      this.dockerImageTag = DEFAULT_IMAGE_TAG;
+      this.containerName = DEFAULT_CONTAINER_NAME + "_" + uuid;
     }
 
     private Builder(