Fixed CheckStyle issues, and matched existing code style of codebase.

Author: brownian-motion

hamcrest/src/main/java/org/hamcrest/reflection/Visibility.java

@@ -4,15 +4,18 @@
 import java.lang.reflect.Modifier;
 import java.util.Objects;
 
-public enum Visibility
-{
+/**
+ * Represents the 4 states of visibility.
+ *
+ * @author JJ Brown
+ */
+enum Visibility {
     PUBLIC("public"),
     PROTECTED("protected"),
     PACKAGE_PROTECTED("package-protected (no modifiers)"),
     PRIVATE("private");
 
-    public String getDescription()
-    {
+    public String getDescription() {
         return description;
     }
 

hamcrest/src/main/java/org/hamcrest/reflection/VisibilityMatcher.java

@@ -12,64 +12,51 @@
  * This class is intentionally not exposed to the public API, to help keep implementation details hidden (and easy to change).
  * Please use {@link VisibilityMatchers} to instantiate instances of this class.
  *
- * @param <T>
- * 		the type of the element being matched; could be anything
+ * @param <T> the type of the element being matched; could be anything
+ * @author JJ Brown
  * @see VisibilityMatchers
  */
-class VisibilityMatcher<T> extends BaseMatcher<T>
-{
-    private final Visibility expectedVisibility;
+class VisibilityMatcher<T> extends BaseMatcher<T> {
+  private final Visibility expectedVisibility;
 
-    VisibilityMatcher(Visibility expectedVisibility)
-    {
-        this.expectedVisibility = expectedVisibility;
-    }
+  VisibilityMatcher(Visibility expectedVisibility) {
+    this.expectedVisibility = expectedVisibility;
+  }
 
-    @Override
-    public boolean matches(Object actual)
-    {
-        if (actual == null)
-        {
-            return false;
-        }
-        if (actual instanceof Class)
-        {
-            return expectedVisibility == Visibility.of((Class<?>) actual);
-        }
-        if (actual instanceof Member)
-        {
-            return expectedVisibility == Visibility.of((Member) actual);
-        }
-        return false;
+  @Override
+  public boolean matches(Object actual) {
+    if (actual == null) {
+      return false;
     }
-
-    @Override public void describeTo(Description description)
-    {
-        description.appendText("is ").appendText(expectedVisibility.getDescription());
+    if (actual instanceof Class) {
+      return expectedVisibility == Visibility.of((Class<?>) actual);
     }
+    if (actual instanceof Member) {
+      return expectedVisibility == Visibility.of((Member) actual);
+    }
+    return false;
+  }
+
+  @Override
+  public void describeTo(Description description) {
+    description.appendText("is ").appendText(expectedVisibility.getDescription());
+  }
 
-    @Override public void describeMismatch(Object item, Description description)
-    {
-        if (item == null)
-        {
-            description.appendText("was null");
-        }
-        else if (item instanceof Class)
-        {
-            description.appendText("was a ")
-                    .appendText(Visibility.of((Class<?>) item).getDescription())
-                    .appendText(" class");
-        }
-        else if (item instanceof Member)
-        {
-            description.appendText("was a ")
-                    .appendText(Visibility.of((Member) item).getDescription())
-                    .appendText(" ")
-                    .appendText(item.getClass().getName());
-        }
-        else
-        {
-            description.appendText("was " + item.getClass().getName() + " instead of a reflective element like a Class<T>, Constructor<T>, or Method");
-        }
+  @Override
+  public void describeMismatch(Object item, Description description) {
+    if (item == null) {
+      description.appendText("was null");
+    } else if (item instanceof Class) {
+      description.appendText("was a ")
+          .appendText(Visibility.of((Class<?>) item).getDescription())
+          .appendText(" class");
+    } else if (item instanceof Member) {
+      description.appendText("was a ")
+          .appendText(Visibility.of((Member) item).getDescription())
+          .appendText(" ")
+          .appendText(item.getClass().getName());
+    } else {
+      description.appendText("was " + item.getClass().getName() + " instead of a reflective element like a Class<T>, Constructor<T>, or Method");
     }
+  }
 }

hamcrest/src/main/java/org/hamcrest/reflection/VisibilityMatchers.java

@@ -5,92 +5,85 @@
 /**
  * Defines matchers that check the visibility of reflective objects like {@link java.lang.Class} or {@link java.lang.reflect.Method}.
  * {@code null} values never match, nor do normal objects; these simply do not match, without raising an Exception.
+ *
+ * @author JJ Brown
  */
-public class VisibilityMatchers
-{
-    // Each matcher is stateless and can match any type, so the individual instances are only made once and stored here for re-use.
-    private static final VisibilityMatcher<?> PUBLIC = new VisibilityMatcher<>(Visibility.PUBLIC);
-    private static final VisibilityMatcher<?> PROTECTED = new VisibilityMatcher<>(Visibility.PROTECTED);
-    private static final VisibilityMatcher<?> PACKAGE_PROTECTED = new VisibilityMatcher<>(Visibility.PACKAGE_PROTECTED);
-    private static final VisibilityMatcher<?> PRIVATE = new VisibilityMatcher<>(Visibility.PRIVATE);
+public class VisibilityMatchers {
+  // Each matcher is stateless and can match any type, so the individual instances are only made once and stored here for re-use.
+  private static final VisibilityMatcher<?> PUBLIC = new VisibilityMatcher<>(Visibility.PUBLIC);
+  private static final VisibilityMatcher<?> PROTECTED = new VisibilityMatcher<>(Visibility.PROTECTED);
+  private static final VisibilityMatcher<?> PACKAGE_PROTECTED = new VisibilityMatcher<>(Visibility.PACKAGE_PROTECTED);
+  private static final VisibilityMatcher<?> PRIVATE = new VisibilityMatcher<>(Visibility.PRIVATE);
 
-    /**
-     * Matchers reflective elements that have public visibility.
-     * Specifically, this matcher only matches elements marked with the keyword {@code public}.
-     * <br>
-     * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
-     * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
-     * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
-     *
-     * @param <T>
-     * 		the type of the object being matched
-     * @return a matcher that matches reflective elements with exactly the given level of visibility
-     */
-    @SuppressWarnings("unchecked")
-    public static <T> Matcher<T> isPublic()
-    {
-        // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
-        // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
-        return (Matcher<T>) PUBLIC;
-    }
+  /**
+   * Matchers reflective elements that have public visibility.
+   * Specifically, this matcher only matches elements marked with the keyword {@code public}.
+   * <br>
+   * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
+   * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
+   * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
+   *
+   * @param <T> the type of the object being matched
+   * @return a matcher that matches reflective elements with exactly the given level of visibility
+   */
+  @SuppressWarnings("unchecked")
+  public static <T> Matcher<T> isPublic() {
+    // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
+    // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
+    return (Matcher<T>) PUBLIC;
+  }
 
-    /**
-     * Matchers reflective elements that have protected visibility.
-     * Specifically, this matcher only matches elements marked with the keyword {@code protected}; it does NOT match public or private elements.
-     * <br>
-     * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
-     * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
-     * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
-     *
-     * @param <T>
-     * 		the type of the object being matched
-     * @return a matcher that matches reflective elements with exactly the given level of visibility
-     */
-    @SuppressWarnings("unchecked")
-    public static <T> Matcher<T> isProtected()
-    {
-        // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
-        // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
-        return (Matcher<T>) PROTECTED;
-    }
+  /**
+   * Matchers reflective elements that have protected visibility.
+   * Specifically, this matcher only matches elements marked with the keyword {@code protected}; it does NOT match public or private elements.
+   * <br>
+   * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
+   * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
+   * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
+   *
+   * @param <T> the type of the object being matched
+   * @return a matcher that matches reflective elements with exactly the given level of visibility
+   */
+  @SuppressWarnings("unchecked")
+  public static <T> Matcher<T> isProtected() {
+    // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
+    // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
+    return (Matcher<T>) PROTECTED;
+  }
 
-    /**
-     * Matchers reflective elements that have package-protected visibility.
-     * Specifically, this matcher only matches elements not marked with any of the visibility keywords {@code public}, {@code protected}, or {@code private}.
-     * <br>
-     * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
-     * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
-     * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
-     *
-     * @param <T>
-     * 		the type of the object being matched
-     * @return a matcher that matches reflective elements with exactly the given level of visibility
-     */
-    @SuppressWarnings("unchecked")
-    public static <T> Matcher<T> isPackageProtected()
-    {
-        // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
-        // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
-        return (Matcher<T>) PACKAGE_PROTECTED;
-    }
+  /**
+   * Matchers reflective elements that have package-protected visibility.
+   * Specifically, this matcher only matches elements not marked with any of the visibility keywords {@code public}, {@code protected}, or {@code private}.
+   * <br>
+   * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
+   * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
+   * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
+   *
+   * @param <T> the type of the object being matched
+   * @return a matcher that matches reflective elements with exactly the given level of visibility
+   */
+  @SuppressWarnings("unchecked")
+  public static <T> Matcher<T> isPackageProtected() {
+    // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
+    // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
+    return (Matcher<T>) PACKAGE_PROTECTED;
+  }
 
-    /**
-     * Matchers reflective elements that have private visibility.
-     * Specifically, this matcher only matches elements marked with the keyword {@link private}.
-     * <br>
-     * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
-     * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
-     * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
-     *
-     * @param <T>
-     * 		the type of the object being matched
-     * @return a matcher that matches reflective elements with exactly the given level of visibility
-     */
-    @SuppressWarnings("unchecked")
-    public static <T> Matcher<T> isPrivate()
-    {
-        // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
-        // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
-        return (Matcher<T>) PRIVATE;
-    }
+  /**
+   * Matchers reflective elements that have private visibility.
+   * Specifically, this matcher only matches elements marked with the keyword {@link private}.
+   * <br>
+   * This method matches {@link Class} objects or other {@link java.lang.reflect.Member reflective objects}
+   * like {@link java.lang.reflect.Field} or {@link java.lang.reflect.Method} used in reflection.
+   * Any other kind of object, or {@code null} values, do not match (but will not cause an Exception).
+   *
+   * @param <T> the type of the object being matched
+   * @return a matcher that matches reflective elements with exactly the given level of visibility
+   */
+  @SuppressWarnings("unchecked")
+  public static <T> Matcher<T> isPrivate() {
+    // Each matcher is stateless and can match any type (the generic <T> is for type safety at the use site),
+    // so it's fine to cast the non-reifiable generic type here at runtime and re-use the same instance.
+    return (Matcher<T>) PRIVATE;
+  }
 }