Updated android test configuration

compiler/android-tests/android-module/build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.0'
+        classpath 'com.android.tools.build:gradle:2.2.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -64,7 +64,9 @@ android {
 
     dexOptions {
         dexInProcess false
-        javaMaxHeapSize "600m"
+        javaMaxHeapSize "700m"
+        //default is 4 and Total Memory = maxProcessCount * javaMaxHeapSize
+        maxProcessCount 2
     }
 }
 

compiler/android-tests/src/org/jetbrains/kotlin/android/tests/PathManager.java

@@ -16,6 +16,8 @@
 
 package org.jetbrains.kotlin.android.tests;
 
+import org.jetbrains.kotlin.android.tests.download.SDKDownloader;
+
 import java.io.File;
 
 public class PathManager {
@@ -75,7 +77,7 @@ public class PathManager {
     }
 
     public String getGradleBinFolder() {
-        return getDependenciesRoot() + "/gradle-2.12/bin";
+        return getDependenciesRoot() + "/gradle-" + SDKDownloader.GRADLE_VERSION + "/bin";
     }
 
     public String getRootForDownload() {

compiler/android-tests/src/org/jetbrains/kotlin/android/tests/download/SDKDownloader.java

@@ -43,6 +43,7 @@ public class SDKDownloader {
     private static final String SDK_TOOLS = "25.1.1";
     public static final String BUILD_TOOLS = "23.0.3";
     private static final int ANDROID_VERSION = 19;
+    public static final String GRADLE_VERSION = "2.14.1";
 
 
     public SDKDownloader(PathManager pathManager) {
@@ -78,7 +79,7 @@ public class SDKDownloader {
     }
 
     public void downloadGradle() {
-        download("https://services.gradle.org/distributions/gradle-2.12-bin.zip", gradleZipPath);
+        download("https://services.gradle.org/distributions/gradle-" + GRADLE_VERSION + "-bin.zip", gradleZipPath);
     }
 
     private static String getDownloadUrl(String prefix) {