e2b9459da9
Those annotations could be inferred by some tools (like Kotlin), but the https://checkerframework.org/ doesn't check inherited annotations complaining about all equals() invocations that get nullable argument. The change was generated by running find . -name \*.java | xargs sed -i 's/public boolean equals(Object /public boolean equals(@Nullable Object /' in the frameworks/base directory and by automatically adding and formatting required imports if needed. No manual edits. Bug: 170883422 Test: Annotation change only. Should have not impact. Exempt-From-Owner-Approval: Mechanical change not specific to any component. Change-Id: I5eedb571c9d78862115dfdc5dae1cf2a35343580