javax validation for login(email or phone)

class SingIn {

    private String login;

    private String password;

    public SingIn(String login, String password) {
        this.login = login;
        this.password = password;
    }

    public String getLogin() {
        return login;
    }

    public String getPassword() {
        return password;
    }
}

Login property could be an email(pattern ".+@.+") or a phone number(pattern "\+\d+").

Is it possible somehow with javax annotation to validate the login property?

Yes, it's possible by composing 2 @Pattern annotations with logical OR:

@ConstraintComposition(OR)
@Pattern(regexp = ".+@.+")
@Pattern(regexp = "\+\d+")
@ReportAsSingleViolation
@Target({ METHOD, FIELD })
@Retention(RUNTIME)
@Constraint(validatedBy = { })
public @interface EmailOrPhone {

See also the topic Boolean composition of constraints in the Hibernate Validator documentation.