Return a hex String form of an object's identity hash code. @param obj the object @return the object's identity code in hex notation
Return a string representation of an object's overall identity. @param obj the object (may be {@code null}) @return the object's identity as string representation, or an empty string if the object was {@code null}
Determine if the given objects are equal, returning {@code true} if both are {@code null} or {@code false} if only one is {@code null}. <p>Compares arrays with {@code Arrays.equals}, performing an equality check based on the array elements rather than the array reference. @param o1 first Object to compare @param o2 second Object to compare @return whether the given objects are equal @see Object#equals(Object) @see java.util.Arrays#equals