Excavator: Upgrades Baseline to the latest version

.baseline/checkstyle/checkstyle.xml

@@ -146,6 +146,11 @@
             <property name="regexp" value="true" />
             <message key="import.illegal" value="Must not import repackaged classes."/>
         </module>
+        <module name="IllegalImport">
+            <property name="illegalPkgs" value="^org\.gradle\.(internal|.*\.internal)"/>
+            <property name="regexp" value="true" />
+            <message key="import.illegal" value="Do not rely on gradle internal classes as these may change in minor releases - use org.gradle.api versions instead."/>
+        </module>
         <module name="IllegalImport">
             <property name="illegalPkgs" value="sun"/>
             <message key="import.illegal" value="Must not use Oracle's Java implementation details. See http://www.oracle.com/technetwork/java/faq-sun-packages-142232.html ."/>
@@ -405,7 +410,6 @@
             <message key="name.invalidPattern" value="Type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="TypecastParenPad"/> <!-- Java Style Guide: Horizontal whitespace -->
-        <module name="UnnecessaryParentheses"/>
         <module name="UnusedImports"> <!-- Java Style Guide: No unused imports -->
             <property name="processJavadoc" value="true"/>
         </module>

build.gradle

@@ -10,7 +10,7 @@ buildscript {
         classpath 'com.netflix.nebula:nebula-publishing-plugin:14.1.1'
         classpath 'com.netflix.nebula:gradle-info-plugin:5.2.0'
         classpath 'com.palantir.gradle.consistentversions:gradle-consistent-versions:1.16.0'
-        classpath 'com.palantir.baseline:gradle-baseline-java:2.47.0'
+        classpath 'com.palantir.baseline:gradle-baseline-java:3.1.0'
         classpath 'com.palantir.gradle.gitversion:gradle-git-version:0.12.2'
         classpath 'gradle.plugin.org.inferred:gradle-processors:3.3.0'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'