Revert "[SPARK-3454] separate json endpoints for data in the UI"

This reverts commit d497358.

The commit broke Spark on Windows.

Author: rxin

.rat-excludes

@@ -74,12 +74,5 @@ logs
 .*scalastyle-output.xml
 .*dependency-reduced-pom.xml
 known_translations
-json_expectation
-local-1422981759269/*
-local-1422981780767/*
-local-1425081759269/*
-local-1426533911241/*
-local-1426633911242/*
-local-1427397477963/*
 DESCRIPTION
 NAMESPACE

core/pom.xml

@@ -228,14 +228,6 @@
       <artifactId>json4s-jackson_${scala.binary.version}</artifactId>
       <version>3.2.10</version>
     </dependency>
-    <dependency>
-      <groupId>com.sun.jersey</groupId>
-      <artifactId>jersey-server</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>com.sun.jersey</groupId>
-      <artifactId>jersey-core</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.apache.mesos</groupId>
       <artifactId>mesos</artifactId>

core/src/main/java/org/apache/spark/JobExecutionStatus.java

@@ -17,15 +17,9 @@
 
 package org.apache.spark;
 
-import org.apache.spark.util.EnumUtil;
-
 public enum JobExecutionStatus {
   RUNNING,
   SUCCEEDED,
   FAILED,
-  UNKNOWN;
-
-  public static JobExecutionStatus fromString(String str) {
-    return EnumUtil.parseIgnoreCase(JobExecutionStatus.class, str);
-  }
+  UNKNOWN
 }

core/src/main/java/org/apache/spark/status/api/v1/ApplicationStatus.java

@@ -428,7 +428,7 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
     _ui =
       if (conf.getBoolean("spark.ui.enabled", true)) {
         Some(SparkUI.createLiveUI(this, _conf, listenerBus, _jobProgressListener,
-          _env.securityManager,appName, startTime = startTime))
+          _env.securityManager,appName))
       } else {
         // For tests, do not enable the UI
         None

core/src/main/java/org/apache/spark/status/api/v1/StageStatus.java

@@ -19,15 +19,15 @@ package org.apache.spark.deploy.history
 
 import org.apache.spark.ui.SparkUI
 
-private[spark] case class ApplicationAttemptInfo(
+private[history] case class ApplicationAttemptInfo(
     attemptId: Option[String],
     startTime: Long,
     endTime: Long,
     lastUpdated: Long,
     sparkUser: String,
     completed: Boolean = false)
 
-private[spark] case class ApplicationHistoryInfo(
+private[history] case class ApplicationHistoryInfo(
     id: String,
     name: String,
     attempts: List[ApplicationAttemptInfo])