Fix ImmutablesStyle check

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

@@ -42,17 +42,18 @@
                 + "See https://github.com/immutables/immutables/issues/291.")
 public final class ImmutablesStyle extends BugChecker implements BugChecker.ClassTreeMatcher {
 
-    private static final Matcher<ClassTree> INLINE_STYLE_ANNOTATION = Matchers.hasAnnotation(Value.Style.class);
+    private static final Matcher<ClassTree> STYLE_ANNOTATION = Matchers.hasAnnotation(Value.Style.class);
 
     @Override
     public Description matchClass(ClassTree tree, VisitorState state) {
+        if (!STYLE_ANNOTATION.matches(tree, state)) {
+            return Description.NO_MATCH;
+        }
+
         switch (tree.getKind()) {
             case CLASS:
             case INTERFACE:
-                if (INLINE_STYLE_ANNOTATION.matches(tree, state)) {
-                    return describeMatch(tree);
-                }
-                break;
+                return describeMatch(tree);
             case ANNOTATION_TYPE:
                 ClassSymbol classSymbol = ASTHelpers.getSymbol(tree);
                 if (!ElementPredicates.hasSourceRetention(classSymbol)) {

baseline-error-prone/src/test/java/com/palantir/baseline/errorprone/ImmutablesStyleTest.java

@@ -16,7 +16,7 @@
 package com.palantir.baseline.errorprone;
 
 import com.google.errorprone.CompilationTestHelper;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class ImmutablesStyleTest {
 
@@ -99,6 +99,13 @@ public void testMetaAnnotation_sourceRetention() {
                 .doTest();
     }
 
+    @Test
+    public void testOtherAnnotation() {
+        helper().addSourceLines("MyOtherAnnotation.java", "public @interface MyOtherAnnotation {}")
+                .addSourceLines("Person.java", "@MyOtherAnnotation", "public interface Person {}")
+                .doTest();
+    }
+
     private CompilationTestHelper helper() {
         return CompilationTestHelper.newInstance(ImmutablesStyle.class, getClass());
     }