Now can choose Java Installation in Windows

HMCSM/build.gradle

@@ -15,13 +15,16 @@
  * along with this program.
  */
 apply plugin: 'launch4j'
+apply plugin: 'me.tatarka.retrolambda'
 
 if (!hasProperty('mainClass')) {
     ext.mainClass = 'org.jackhuang.hellominecraft.svrmgr.Main'
 }
 
+def buildnumber = System.getenv("BUILD_NUMBER") == null ? "" : "."+System.getenv("BUILD_NUMBER")
+
 String mavenGroupId = 'HMCSM'
-String mavenVersion = '0.8.6'
+String mavenVersion = '0.8.6' + buildnumber
 String bundleName = "Hello Minecraft! Server Manager"
 
 group = mavenGroupId
@@ -35,6 +38,7 @@ buildscript {
         dependencies {
             classpath 'net.sf.proguard:proguard-gradle:4.10'
             classpath 'edu.sc.seis.gradle:launch4j:1.0.6'
+            classpath 'me.tatarka:gradle-retrolambda:3.1.0'
         }
     }
 }
@@ -47,6 +51,10 @@ configure(install.repositories.mavenInstaller) {
     }
 }
 
+retrolambda {
+    javaVersion = JavaVersion.VERSION_1_7
+}
+
 dependencies {
     compile project(":HMCLAPI")
     compile project(":MetroLookAndFeel")
@@ -79,6 +87,7 @@ task proguard(type: proguard.gradle.ProGuardTask, dependsOn: jar) {
     
     configuration 'proguard.pro'
 }
+
 processResources {
     from(sourceSets.main.resources.srcDirs) {
         exclude 'icon.icns'