diff --git a/build.gradle b/build.gradle
index e14f3f5d9..5a756e662 100644
--- a/build.gradle
+++ b/build.gradle
@@ -236,9 +236,7 @@ subprojects {
     }
   }
 
-  if (project.name == 'util') return
-  if (project.name == 'proxy') return
-  if (project.name == 'core') return
+  if (['util', 'proxy', 'core', 'prober'].contains(project.name)) return
 
   test {
     testLogging.showStandardStreams = Boolean.parseBoolean(showAllOutput)
diff --git a/prober/build.gradle b/prober/build.gradle
index e287bfd1b..8551d11f7 100644
--- a/prober/build.gradle
+++ b/prober/build.gradle
@@ -4,7 +4,7 @@
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
-//     http://www.apache.org/licenses/LICENSE-2.0
+//   http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ -12,38 +12,36 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-apply plugin: 'java'
-
 createUberJar('deployJar', 'prober', 'google.registry.monitoring.blackbox.Prober')
 
 dependencies {
-    def deps = rootProject.dependencyMap
+  def deps = rootProject.dependencyMap
 
-    compile deps['com.google.auto.value:auto-value-annotations']
-    compile deps['com.google.dagger:dagger']
-    compile deps['com.google.flogger:flogger']
-    compile deps['com.google.guava:guava']
-    compile deps['io.netty:netty-buffer']
-    compile deps['io.netty:netty-codec-http']
-    compile deps['io.netty:netty-codec']
-    compile deps['io.netty:netty-common']
-    compile deps['io.netty:netty-handler']
-    compile deps['io.netty:netty-transport']
-    compile deps['javax.inject:javax.inject']
+  compile deps['com.google.auto.value:auto-value-annotations']
+  compile deps['com.google.dagger:dagger']
+  compile deps['com.google.flogger:flogger']
+  compile deps['com.google.guava:guava']
+  compile deps['io.netty:netty-buffer']
+  compile deps['io.netty:netty-codec-http']
+  compile deps['io.netty:netty-codec']
+  compile deps['io.netty:netty-common']
+  compile deps['io.netty:netty-handler']
+  compile deps['io.netty:netty-transport']
+  compile deps['javax.inject:javax.inject']
 
-    runtime deps['com.google.flogger:flogger-system-backend']
-    runtime deps['com.google.auto.value:auto-value']
-    runtime deps['io.netty:netty-tcnative-boringssl-static']
+  runtime deps['com.google.flogger:flogger-system-backend']
+  runtime deps['com.google.auto.value:auto-value']
+  runtime deps['io.netty:netty-tcnative-boringssl-static']
 
-    testCompile deps['com.google.truth:truth']
-    testCompile deps['junit:junit']
-    testCompile deps['org.mockito:mockito-core']
-    testCompile project(':third_party')
+  testCompile deps['com.google.truth:truth']
+  testCompile deps['junit:junit']
+  testCompile deps['org.mockito:mockito-core']
+  testCompile project(':third_party')
 
-    // Include auto-value in compile until nebula-lint understands
-    // annotationProcessor
-    annotationProcessor deps['com.google.auto.value:auto-value']
-    testAnnotationProcessor deps['com.google.auto.value:auto-value']
-    annotationProcessor deps['com.google.dagger:dagger-compiler']
-    testAnnotationProcessor deps['com.google.dagger:dagger-compiler']
+  // Include auto-value in compile until nebula-lint understands
+  // annotationProcessor
+  annotationProcessor deps['com.google.auto.value:auto-value']
+  testAnnotationProcessor deps['com.google.auto.value:auto-value']
+  annotationProcessor deps['com.google.dagger:dagger-compiler']
+  testAnnotationProcessor deps['com.google.dagger:dagger-compiler']
 }
diff --git a/prober/src/main/java/google/registry/monitoring/blackbox/Protocol.java b/prober/src/main/java/google/registry/monitoring/blackbox/Protocol.java
index b0071ea44..271af3c67 100644
--- a/prober/src/main/java/google/registry/monitoring/blackbox/Protocol.java
+++ b/prober/src/main/java/google/registry/monitoring/blackbox/Protocol.java
@@ -41,14 +41,16 @@ public abstract class Protocol {
     return new AutoValue_Protocol.Builder();
   }
 
+  /** Builder for {@link Protocol}. */
   @AutoValue.Builder
-  public static abstract class Builder {
+  public abstract static class Builder {
 
     public abstract Builder name(String value);
 
     public abstract Builder port(int num);
 
-    public abstract Builder handlerProviders(ImmutableList<Provider<? extends ChannelHandler>> providers);
+    public abstract Builder handlerProviders(
+        ImmutableList<Provider<? extends ChannelHandler>> providers);
 
     public abstract Builder persistentConnection(boolean value);
 
diff --git a/prober/src/main/java/google/registry/monitoring/blackbox/handlers/ActionHandler.java b/prober/src/main/java/google/registry/monitoring/blackbox/handlers/ActionHandler.java
index dfd88cba1..f0d9ac023 100644
--- a/prober/src/main/java/google/registry/monitoring/blackbox/handlers/ActionHandler.java
+++ b/prober/src/main/java/google/registry/monitoring/blackbox/handlers/ActionHandler.java
@@ -17,22 +17,23 @@ package google.registry.monitoring.blackbox.handlers;
 import com.google.common.flogger.FluentLogger;
 import google.registry.monitoring.blackbox.messages.InboundMessageType;
 import google.registry.monitoring.blackbox.messages.OutboundMessageType;
-import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelPromise;
+import io.netty.channel.SimpleChannelInboundHandler;
 
 /**
- *Superclass of all {@link ChannelHandler}s placed at end of channel pipeline
+ * Superclass of all {@link ChannelHandler}s placed at end of channel pipeline
  *
- * <p> {@code ActionHandler} inherits from {@link SimpleChannelInboundHandler< InboundMessageType >}, as it should only be passed in
- * messages that implement the {@link InboundMessageType} interface. </p>
+ * <p>{@code ActionHandler} inherits from {@link SimpleChannelInboundHandler< InboundMessageType >},
+ * as it should only be passed in messages that implement the {@link InboundMessageType} interface.
  *
- * <p> The {@code ActionHandler} skeleton exists for a few main purposes. First, it returns a {@link ChannelPromise},
- * which informs the {@link ProbingAction} in charge that a response has been read. Second, it stores the {@link OutboundMessageType}
- * passed down the pipeline, so that subclasses can use that information for their own processes. Lastly, with any exception
- * thrown, the connection is closed, and the ProbingAction governing this channel is informed of the error. Subclasses
- * specify further work to be done for specific kinds of channel pipelines. </p>
+ * <p>The {@code ActionHandler} skeleton exists for a few main purposes. First, it returns a {@link
+ * ChannelPromise}, which informs the {@link ProbingAction} in charge that a response has been read.
+ * Second, it stores the {@link OutboundMessageType} passed down the pipeline, so that subclasses
+ * can use that information for their own processes. Lastly, with any exception thrown, the
+ * connection is closed, and the ProbingAction governing this channel is informed of the error.
+ * Subclasses specify further work to be done for specific kinds of channel pipelines.
  */
 public abstract class ActionHandler extends SimpleChannelInboundHandler<InboundMessageType> {
 
@@ -40,7 +41,10 @@ public abstract class ActionHandler extends SimpleChannelInboundHandler<InboundM
 
   protected ChannelPromise finished;
 
-  /** Takes in {@link OutboundMessageType} type and saves for subclasses. Then returns initialized {@link ChannelPromise}*/
+  /**
+   * Takes in {@link OutboundMessageType} type and saves for subclasses. Then returns initialized
+   * {@link ChannelPromise}
+   */
   public ChannelFuture getFuture() {
     return finished;
   }
@@ -48,27 +52,30 @@ public abstract class ActionHandler extends SimpleChannelInboundHandler<InboundM
   /** Initializes new {@link ChannelPromise} */
   @Override
   public void handlerAdded(ChannelHandlerContext ctx) {
-    //Once handler is added to channel pipeline, initialize channel and future for this handler
+    // Once handler is added to channel pipeline, initialize channel and future for this handler
     finished = ctx.newPromise();
   }
 
   @Override
-  public void channelRead0(ChannelHandlerContext ctx, InboundMessageType inboundMessage) throws Exception {
-    //simply marks finished as success
-    finished.setSuccess();
+  public void channelRead0(ChannelHandlerContext ctx, InboundMessageType inboundMessage)
+      throws Exception {
+    // simply marks finished as success
+    finished = finished.setSuccess();
   }
 
-  /** Logs the channel and pipeline that caused error, closes channel, then informs {@link ProbingAction} listeners of error */
+  /**
+   * Logs the channel and pipeline that caused error, closes channel, then informs {@link
+   * ProbingAction} listeners of error
+   */
   @Override
   public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
-    logger.atSevere().withCause(cause).log(String.format(
-        "Attempted Action was unsuccessful with channel: %s, having pipeline: %s",
-        ctx.channel().toString(),
-        ctx.channel().pipeline().toString()));
+    logger.atSevere().withCause(cause).log(
+        String.format(
+            "Attempted Action was unsuccessful with channel: %s, having pipeline: %s",
+            ctx.channel().toString(), ctx.channel().pipeline().toString()));
 
-    finished.setFailure(cause);
+    finished = finished.setFailure(cause);
     ChannelFuture closedFuture = ctx.channel().close();
     closedFuture.addListener(f -> logger.atInfo().log("Unsuccessful channel connection closed"));
   }
 }
-
diff --git a/prober/src/main/java/google/registry/monitoring/blackbox/messages/InboundMessageType.java b/prober/src/main/java/google/registry/monitoring/blackbox/messages/InboundMessageType.java
index 0c1260bec..84b77f89d 100644
--- a/prober/src/main/java/google/registry/monitoring/blackbox/messages/InboundMessageType.java
+++ b/prober/src/main/java/google/registry/monitoring/blackbox/messages/InboundMessageType.java
@@ -15,7 +15,7 @@
 package google.registry.monitoring.blackbox.messages;
 
 /**
- * Marker Interface that is implemented by all classes that serve as {@code inboundMessages} in channel pipeline
+ * Marker Interface that is implemented by all classes that serve as {@code inboundMessages} in
+ * channel pipeline
  */
 public interface InboundMessageType {}
-
diff --git a/prober/src/main/java/google/registry/monitoring/blackbox/messages/OutboundMessageType.java b/prober/src/main/java/google/registry/monitoring/blackbox/messages/OutboundMessageType.java
index 0dd17e9d4..e393e47ff 100644
--- a/prober/src/main/java/google/registry/monitoring/blackbox/messages/OutboundMessageType.java
+++ b/prober/src/main/java/google/registry/monitoring/blackbox/messages/OutboundMessageType.java
@@ -15,7 +15,7 @@
 package google.registry.monitoring.blackbox.messages;
 
 /**
- * Marker Interface that is implemented by all classes that serve as {@code outboundMessages} in channel pipeline
+ * Marker Interface that is implemented by all classes that serve as {@code outboundMessages} in
+ * channel pipeline
  */
 public interface OutboundMessageType {}
-
diff --git a/proxy/build.gradle b/proxy/build.gradle
index 952bf2da7..d36a400cc 100644
--- a/proxy/build.gradle
+++ b/proxy/build.gradle
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-apply plugin: 'java'
-
 createUberJar('deployJar', 'proxy_server', 'google.registry.proxy.ProxyServer')
 
 task buildProxyImage(dependsOn: deployJar, type: Exec) {
diff --git a/util/build.gradle b/util/build.gradle
index b83e82fb9..5e77780a0 100644
--- a/util/build.gradle
+++ b/util/build.gradle
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-apply plugin: 'java'
-
 dependencies {
   def deps = rootProject.dependencyMap
   compile deps['com.google.api-client:google-api-client']