Excavator: Upgrades Baseline to the latest version

.baseline/checkstyle/checkstyle.xml

@@ -112,7 +112,6 @@
         <module name="EmptyStatement"/> <!-- Java Style Guide: One statement per line -->
         <module name="EqualsHashCode"/>
         <module name="FallThrough"/> <!-- Java Style Guide: Fall-through: commented -->
-        <module name="FinalClass"/> <!-- Java Coding Guidelines: Private constructors -->
         <module name="GenericWhitespace"> <!-- Java Style Guide: Horizontal whitespace -->
             <message key="ws.followed" value="GenericWhitespace ''{0}'' is followed by whitespace."/>
             <message key="ws.preceded" value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
@@ -371,10 +370,6 @@
             <property name="format" value="\bIOUtils\.toString\("/>
             <property name="message" value="Prefer Guava''s [CharStreams,Files,Resources].toString to avoid charset/stream closing issues."/>
         </module>
-        <module name="RegexpSinglelineJava">
-            <property name="format" value="static enum"/>
-            <property name="message" value="Redundant ''static'' modifier."/>
-        </module>
         <module name="RegexpSinglelineJava">
             <property name="format" value="\/\/TODO|\/\/ TODO(?!\([^()\s]+\): )"/>
             <property name="message" value="TODO format: // TODO(#issue): explanation"/>

baseline-error-prone/src/main/java/com/palantir/baseline/errorprone/StrictUnusedVariable.java

@@ -604,7 +604,7 @@ private static boolean exemptedByName(Name name) {
         return EXEMPT_PREFIXES.stream().anyMatch(prefix -> Ascii.toLowerCase(name.toString()).startsWith(prefix));
     }
 
-    private class VariableFinder extends TreePathScanner<Void, Void> {
+    private final class VariableFinder extends TreePathScanner<Void, Void> {
         private final Map<Symbol, TreePath> unusedElements = new HashMap<>();
 
         private final Set<Symbol> onlyCheckForReassignments = new HashSet<>();

build.gradle

@@ -12,7 +12,7 @@ buildscript {
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.4'
         classpath 'com.netflix.nebula:nebula-publishing-plugin:14.1.0'
         classpath 'com.netflix.nebula:gradle-info-plugin:5.1.1'
-        classpath 'com.palantir.baseline:gradle-baseline-java:2.27.0'
+        classpath 'com.palantir.baseline:gradle-baseline-java:2.28.1'
     }
 }