diff --git a/.baseline/checkstyle/checkstyle-suppressions.xml b/.baseline/checkstyle/checkstyle-suppressions.xml
index 16adf10b..c0f855b1 100644
--- a/.baseline/checkstyle/checkstyle-suppressions.xml
+++ b/.baseline/checkstyle/checkstyle-suppressions.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
-
 <!DOCTYPE suppressions PUBLIC
-    "-//Puppy Crawl//DTD Suppressions 1.1//EN"
-    "http://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
+    "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+    "https://checkstyle.org/dtds/suppressions_1_2.dtd">
 
 <!-- IMPORTANT ECLIPSE NOTE: If you change this file, you must restart Eclipse
  for your changes to take effect in its Checkstyle integration. -->
diff --git a/.baseline/checkstyle/checkstyle.xml b/.baseline/checkstyle/checkstyle.xml
index c51899c4..f541b63e 100644
--- a/.baseline/checkstyle/checkstyle.xml
+++ b/.baseline/checkstyle/checkstyle.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE module PUBLIC
-        "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
-        "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <!--
     Palantir Baseline Checkstyle configuration.
@@ -127,6 +127,11 @@
             <property name="illegalPkgs" value="junit.framework"/>
             <message key="import.illegal" value="Use JUnit 4-style (org.junit.*) test classes and assertions instead of JUnit 3 (junit.framework.*)."/>
         </module>
+        <module name="IllegalImport"> <!-- Only relevant for pre-Java 11 because javafx is gone completely in Java 11 -->
+            <property name="id" value="BanJavafx"/>
+            <property name="illegalPkgs" value="javafx"/>
+            <message key="import.illegal" value="Must not import javafx classes because some OpenJDK builds do not include javafx."/>
+        </module>
         <module name="IllegalImport"> <!-- Java Coding Guidelines: Import the canonical package -->
             <property name="illegalPkgs" value="org.elasticsearch.common.base, com.clearspring.analytics.util, org.spark_project.guava"/>
             <message key="import.illegal" value="Must not import repackaged classes."/>
@@ -417,6 +422,7 @@
             <property name="allowEmptyMethods" value="true"/>
             <property name="allowEmptyTypes" value="true"/>
             <property name="allowEmptyLoops" value="true"/>
+            <property name="allowEmptyLambdas" value="true"/>
             <property name="ignoreEnhancedForColon" value="false"/>
             <message key="ws.notFollowed" value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
             <message key="ws.notPreceded" value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
@@ -430,7 +436,7 @@
         </module>
         <module name="CyclomaticComplexity"/> <!-- Java Coding Guidelines: Reduce Cyclomatic Complexity -->
         <module name="DesignForExtension"> <!-- Java Coding Guidelines: Design for extension -->
-            <property name="ignoredAnnotations" value="Test, Before, BeforeEach, After, AfterEach, BeforeClass, BeforeAll, AfterClass, AfterAll"/>
+            <property name="ignoredAnnotations" value="ParameterizedTest, Test, Before, BeforeEach, After, AfterEach, BeforeClass, BeforeAll, AfterClass, AfterAll"/>
         </module>
         <module name="JavadocMethod"> <!-- Java Style Guide: Where Javadoc is used -->
             <property name="scope" value="public"/>
@@ -463,7 +469,7 @@
         <module name="NestedTryDepth"/> <!-- Java Coding Guide: Try/catch blocks: never nested -->
         <module name="NonEmptyAtclauseDescription"/> <!-- Java Style Guide: At-clauses -->
         <module name="ParameterName"> <!-- Java Style Guide: Parameter names -->
-            <property name="format" value="^[a-z][a-zA-Z0-9]+$"/>
+            <property name="format" value="^_?[a-z][a-zA-Z0-9]+$"/>
             <message key="name.invalidPattern" value="Parameter name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="SingleLineJavadoc"/> <!-- Java Style Guide: General form -->
diff --git a/build.gradle b/build.gradle
index 7e92cee6..55a36303 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,8 +13,8 @@ buildscript {
         classpath 'com.netflix.nebula:gradle-info-plugin:5.1.0'
         classpath 'com.palantir.gradle.consistentversions:gradle-consistent-versions:1.9.2'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
+        classpath 'com.palantir.baseline:gradle-baseline-java:2.9.2'
         classpath 'com.netflix.nebula:nebula-publishing-plugin:13.6.1'
-        classpath 'com.palantir.baseline:gradle-baseline-java:0.50.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:0.11.0'
         classpath 'gradle.plugin.com.palantir.configurationresolver:gradle-configuration-resolver-plugin:0.2.0'
         classpath 'gradle.plugin.org.inferred:gradle-processors:3.1.0'
diff --git a/src/main/java/com/palantir/docker/proxy/DockerProxyRule.java b/src/main/java/com/palantir/docker/proxy/DockerProxyRule.java
index 227ca965..888f56ff 100644
--- a/src/main/java/com/palantir/docker/proxy/DockerProxyRule.java
+++ b/src/main/java/com/palantir/docker/proxy/DockerProxyRule.java
@@ -196,7 +196,7 @@ private static class ForwardingNameServiceHandler implements InvocationHandler {
         }
 
         @Override
-        public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+        public Object invoke(Object _proxy, Method method, Object[] args) throws Throwable {
             try {
                 return callAndUnwrap(delegate, method, args);
             } catch (UnknownHostException e) {
diff --git a/src/main/java/com/palantir/docker/proxy/DockerProxySelector.java b/src/main/java/com/palantir/docker/proxy/DockerProxySelector.java
index 3d26d523..d0233264 100644
--- a/src/main/java/com/palantir/docker/proxy/DockerProxySelector.java
+++ b/src/main/java/com/palantir/docker/proxy/DockerProxySelector.java
@@ -4,9 +4,9 @@
 
 package com.palantir.docker.proxy;
 
-import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.palantir.docker.compose.connection.Cluster;
+import com.palantir.logsafe.Preconditions;
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.net.Proxy;