Java Enum#values() nature.

EnumTest.java

public class EnumTest {

    public static void main(String[] args) {
        TestEnum[] values = TestEnum.values();
        TestEnum[] values2 = TestEnum.values();

        // Compare the array itself.
        if (values == values2) {
            System.out.println("Same");
        } else {
            System.out.println("Nope"); //output
        }

        // Comparing the contents of the array.
        if (values[0] == values2[0]) {
            System.out.println("Same"); //output
        } else {
            System.out.println("Nope");
        }
    }

    enum TestEnum {
        TEST_A
    }
}