Method safeContains

output/java_guava/1.4.17/Collections2.java:105–114

Delegates to Collection#contains. Returns false if the contains method throws a ClassCastException or NullPointerException.

(Collection<?> collection, @Nullable Object object)

   */

  static boolean safeContains(Collection<?> collection, @Nullable Object object) {
    checkNotNull(collection);
    try {
      return collection.contains(object);
    } catch (ClassCastException e) {
      return false;
    } catch (NullPointerException e) {
      return false;
    }
  }

  /**
   * Delegates to {@link Collection#remove}. Returns {@code false} if the