How to add Security provider in a Spring application using Javaconfig?

Question

I'm trying to add BouncyCastle to my Spring application but I am not sure how to add the provider to the java.security.Security provider list using JavaConfig.

Using XML configuration, I can use the MethodInvokingFactoryBean similar the following:

<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
  <property name="staticMethod" value="java.security.Security.addProvider"/>
  <property name="arguments">
    <list>
      <bean class="org.bouncycastle.jce.provider.BouncyCastleProvider"/>
    </list>
  </property>
</bean>

However, I'm not sure of the right way to do this using JavaConfig. Should I still be using the MethodInvokingFactoryBean? I presumed since it is pure java, there would be a more direct approach. At the moment, I've added the directive to a @PostConstruct method in the JavaConfig object, but not too thrilled about it - it seems a little "hacky" to me:

@Configuration
public class AppConfig {
    // other @Bean definitions

    @PostConstruct
    public void init(){
        Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    }
}

Answer 1

MethodInvokingBean will be the de facto choice for add BouncyCastleProvider to java.security.Security since you won't need any exposure to your application context.