Apply suggestions from code review

Author: timtebeek

src/main/java/org/openrewrite/java/migrate/ArrayStoreExceptionToTypeNotPresentException.java

@@ -58,8 +58,9 @@ public J visitTry(J.Try tryStmt, ExecutionContext ctx) {
                             updatedCatches.add(catchClause);
                         }
                     }
-                    if (flag)
+                    if (flag) {
                         tryStmt = tryStmt.withCatches(updatedCatches);
+                    }
                 }
                 return super.visitTry(tryStmt, ctx);
             }

src/test/java/org/openrewrite/java/migrate/TypeNotPresentExceptionTest.java

@@ -21,7 +21,7 @@
 
 import static org.openrewrite.java.Assertions.java;
 
-public class TypeNotPresentExceptionTest implements RewriteTest {
+class TypeNotPresentExceptionTest implements RewriteTest {
     @Override
     public void defaults(RecipeSpec spec) {
         spec.recipe(new ArrayStoreExceptionToTypeNotPresentException());