This implementation clears out any cached authentication data by calling
{@link #clearCachedAuthenticationInfo(hunt.shiro.subject.PrincipalCollection)}.
If overriding in a subclass, be sure to call {@code super.doClearCache} to ensure this behavior is maintained.
@param principals principals the principals of the account for which to clear any cached data.
This implementation clears out any cached authentication data by calling {@link #clearCachedAuthenticationInfo(hunt.shiro.subject.PrincipalCollection)}. If overriding in a subclass, be sure to call {@code super.doClearCache} to ensure this behavior is maintained.
@param principals principals the principals of the account for which to clear any cached data.