assertSame(copySubj, copy.getSubject(), "Clone should retain its cached Subject");
        } else {
            // If JAAS is not configured and getSubject() returns null, verify cloning still works
            assertNull(first, "First call to getSubject() returned null - JAAS not configured");

            // Clone should also return null for getSubject() calls
            Subject copySubj = copy.getSubject();

    /**
     * {@inheritDoc}
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "Kerb5Authenticator[subject=" + (this.getSubject() != null ? this.getSubject().getPrincipals() : null) + ",user=" + this.user
                + ",realm=" + this.realm + "]";
    }

    }

    @Nested
    @DisplayName("getSubject edge cases")
    class SubjectTests {
        @Test
        @DisplayName("returns provided subject")
        void subject_non_null() {
            Subject s = new Subject();
            TestCredentials creds = new TestCredentials("X", false, false, s, false);
            assertSame(s, creds.getSubject());
        }

        @Test

        if (t.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        return null;
    }

    @Override
    public Subject getSubject() {
        return null;
    }

    @Override
    public void refresh() throws CIFSException {
    }

    /**
     *
     * {@inheritDoc}
     *

        }
    }

    @Test
    @DisplayName("Protected setSubject: updates subject used by getters")
    void setSubject_updatesSubject() {
        Kerb5Authenticator auth = new Kerb5Authenticator((Subject) null);
        assertNull(auth.getSubject());
        Subject subject = new Subject();
        auth.setSubject(subject);
        assertSame(subject, auth.getSubject());
    }

        }
    }

    @Test
    public void test_toSlackMessage_withBasicContent() {
        MockSMailPostingDiscloser discloser = new MockSMailPostingDiscloser();
        discloser.setSubject("Test Subject");
        discloser.setPlainText("Test Content");

        String result = notificationHelper.toSlackMessage(discloser);

        assertNotNull(result);

    }

    @Test
    public void test_getObject_withEmptyName() {
        // Test getObject with empty name
        Object result = WebApiUtil.getObject("");
        assertNull(result, "getObject should return null for empty name");
    }

    @Test
    public void test_getObject_nonExistentKey() {
        // Test getObject with non-existent key

}

// GetObject - TODO(aead): This function just acts as an adapter for GetObject tests and benchmarks
// since the GetObject method of the ObjectLayer interface has been removed. Once, the
// tests are adjusted to use GetObjectNInfo this function can be removed.

		}
	}

	for key, value := range objects {
		var byteBuffer bytes.Buffer
		err = GetObject(context.Background(), obj, "bucket", key, 0, int64(len(value)), &byteBuffer, "", opts)
		if err != nil {
			t.Fatalf("%s: <ERROR> %s", instanceType, err)
		}
		if !bytes.Equal(byteBuffer.Bytes(), value) {
			t.Errorf("%s: Mismatch of GetObject data with the expected one.", instanceType)
		}

		if err != toObjectErr(errErasureReadQuorum, bucket, object) {
			t.Errorf("Expected GetObject to fail with %v, but failed with %v", toObjectErr(errErasureReadQuorum, bucket, object), err)
		}
	}
	if gr != nil {
		_, err = io.Copy(io.Discard, gr)
		if err != toObjectErr(errErasureReadQuorum, bucket, object) {
			t.Errorf("Expected GetObject to fail with %v, but failed with %v", toObjectErr(errErasureReadQuorum, bucket, object), err)
		}