Fix broken build (#362)

Author: vancexu

build.gradle

@@ -7,7 +7,7 @@ buildscript {
 plugins {
     id 'net.minecrell.licenser' version '0.3'
     id "com.github.sherter.google-java-format" version "0.6"
-    id "net.ltgt.errorprone" version "0.0.13"
+    id "net.ltgt.errorprone" version "0.6"
 }
 
 repositories {
@@ -45,6 +45,8 @@ sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
 dependencies {
+    errorproneJavac("com.google.errorprone:javac:9+181-r4173-1")
+    errorprone("com.google.errorprone:error_prone_core:2.3.1")
     compile group: 'com.uber.tchannel', name: 'tchannel-core', version: '0.8.5'
     compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.25'
     compile group: 'org.apache.thrift', name: 'libthrift', version: '0.9.3'
@@ -65,8 +67,8 @@ license {
 compileJava {
     dependsOn 'googleJavaFormat'
     options.encoding = 'UTF-8'
-    options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation" << "-XepExcludedPaths:" +
-            ".*/generated-sources/.*" << "-Werror"
+    options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation" << "-Werror"
+    options.errorprone.errorproneArgs << "-XepExcludedPaths:.*/generated-sources/.*"
 }
 
 // Generation version.properties for value to be included into the request header
@@ -90,8 +92,8 @@ classes {
 
 compileTestJava {
     options.encoding = 'UTF-8'
-    options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation" << "-XepExcludedPaths:" +
-            ".*/generated-sources/.*" << "-Werror"
+    options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation" << "-Werror"
+    options.errorprone.errorproneArgs << "-XepExcludedPaths:.*/generated-sources/.*"
 }
 
 if (JavaVersion.current().isJava8Compatible()) {

docker/buildkite/Dockerfile

@@ -1,4 +1,4 @@
-FROM openjdk:8-jre
+FROM openjdk:8
 
 ENV APACHE_THRIFT_VERSION=0.9.3
 

docker/buildkite/Dockerfile-local

@@ -1,4 +1,4 @@
-FROM openjdk:8-jre
+FROM openjdk:8
 
 COPY --from=thrift:0.9.3 /usr/local/bin/thrift /usr/local/bin/thrift
 

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,5 @@
-#Tue Feb 20 18:23:56 PST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.5.1-all.zip

gradle/wrapper/gradle-wrapper.properties

@@ -729,8 +729,6 @@ static <A1, A2, A3, A4, A5, A6, R> CompletableFuture<R> execute(
     return WorkflowClientInternal.execute(workflow, arg1, arg2, arg3, arg4, arg5, arg6);
   }
 
-  /**
-   * Closes the workflow client and the underlying IWorkflowService when this method is called.
-   */
+  /** Closes the workflow client and the underlying IWorkflowService when this method is called. */
   void close();
 }