Returns <code>true</code> if the Object argument is an <code>instanceof SimpleAuthenticationInfo</code> and
its {@link #getPrincipals() principals} are equal to this instance's principals, <code>false</code> otherwise.
@param o the object to compare for equality.
@return <code>true</code> if the Object argument is an <code>instanceof SimpleAuthenticationInfo</code> and
its {@link #getPrincipals() principals} are equal to this instance's principals, <code>false</code> otherwise.
Returns <code>true</code> if the Object argument is an <code>instanceof SimpleAuthenticationInfo</code> and its {@link #getPrincipals() principals} are equal to this instance's principals, <code>false</code> otherwise.
@param o the object to compare for equality. @return <code>true</code> if the Object argument is an <code>instanceof SimpleAuthenticationInfo</code> and its {@link #getPrincipals() principals} are equal to this instance's principals, <code>false</code> otherwise.