add fix to java 8 break in gradle build

Author: jirungaray

build.gradle

@@ -27,6 +27,15 @@ allprojects {
  */
 allprojects { project ->
 
+    //Skip Javadoc generation for Java 1.8 as it breaks build
+    if (JavaVersion.current().isJava8Compatible()) {
+        allprojects {
+            tasks.withType(Javadoc) {
+                options.addStringOption('Xdoclint:none', '-quiet')
+            }
+        }
+    }
+
     // Get constants, this is where we store things
     // like the list of submodules or the version
     project.apply from: "$rootDir/common/constants.gradle"