### Question:
NativeToolchainImpl implements NativeToolchain, Serializable { @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } NativeToolchainImpl that = (NativeToolchainImpl) o; return Objects.equals(name, that.name) && Objects.equals(cCompilerExecutable, that.cCompilerExecutable) && Objects.equals(cppCompilerExecutable, that.cppCompilerExecutable); } NativeToolchainImpl(
            @NonNull String name,
            @Nullable File cCompilerExecutable,
            @Nullable File cppCompilerExecutable); @NonNull @Override String getName(); @Nullable @Override File getCCompilerExecutable(); @Nullable @Override File getCppCompilerExecutable(); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString();  }### Answer:
@Test public void equals() throws Exception { EqualsVerifier.forClass(NativeToolchainImpl.class).verify(); }