fix javac options; upgrade gradle wrapper

Author: magicprinc

click/build.gradle

@@ -17,7 +17,8 @@ repositories {
 
 tasks.withType(JavaCompile).configureEach {
   options.encoding = 'UTF-8'
-  options.compilerArgs.addAll(['-Xlint:all,-serial,-unchecked,-rawtypes,-this-escape,-deprecation,-processing', '-parameters'])
+  //options.compilerArgs.addAll(['-Xlint:all,-serial,-unchecked,-rawtypes,-this-escape,-deprecation,-processing', '-parameters'])
+  options.compilerArgs.addAll(['-Xlint:all,-serial', '-parameters'])
   options.release.set(17) // javac --release 7..23+
   //options.deprecation = true