Fix testing of equals(), hashcode() and toString() methods.

Bug: 258185096
Test: atest CtsSafetyCenterTestCases
Merged-In: Ie22af95bf80efa50b2347ec82a863255b93ede29
Change-Id: Ib0f4898470800c5f9086376d5878ef49e0bc0006
2 files changed