THRIFT-4694: Upgrade Java to Java 1.8
diff --git a/lib/java/gradle/codeQualityChecks.gradle b/lib/java/gradle/codeQualityChecks.gradle
index 9572ca1..1ff1c29 100644
--- a/lib/java/gradle/codeQualityChecks.gradle
+++ b/lib/java/gradle/codeQualityChecks.gradle
@@ -28,7 +28,6 @@
     ignoreFailures = true
     toolVersion = '6.0.0'
     sourceSets = [ sourceSets.main ]
-    targetJdk = sourceCompatibility
     ruleSets = [ 'java-basic' ]
 }
 
diff --git a/lib/java/gradle/sourceConfiguration.gradle b/lib/java/gradle/sourceConfiguration.gradle
index decc6a2..8dd0331 100644
--- a/lib/java/gradle/sourceConfiguration.gradle
+++ b/lib/java/gradle/sourceConfiguration.gradle
@@ -45,8 +45,8 @@
 // ----------------------------------------------------------------------------
 // Compiler configuration details
 
-sourceCompatibility = '1.6'
-targetCompatibility = '1.6'
+sourceCompatibility = '1.8'
+targetCompatibility = '1.8'
 
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'