<1> Before running the rest of the application, `SecurityContextPersistenceFilter` loads the `SecurityContext` from the `SecurityContextRepository` and sets it on the `SecurityContextHolder`.
<2> Next, the application is ran.
<3> Finally, if the `SecurityContext` has changed, we save the `SecurityContext` using the `SecurityContextPersistenceRepository`.
image:{icondir}/number_1.png[] Before running the rest of the application, `SecurityContextPersistenceFilter` loads the `SecurityContext` from the `SecurityContextRepository` and sets it on the `SecurityContextHolder`.
image:{icondir}/number_2.png[] Next, the application is ran.
image:{icondir}/number_3.png[] Finally, if the `SecurityContext` has changed, we save the `SecurityContext` using the `SecurityContextPersistenceRepository`.
This means that when using `SecurityContextPersistenceFilter`, just setting the `SecurityContextHolder` will ensure that the `SecurityContext` is persisted using `SecurityContextRepository`.
In some cases a response is committed and written to the client before the `SecurityContextPersisteneFilter` method completes.
@ -211,11 +213,12 @@ The {security-api-url}org/springframework/security/web/context/SecurityContextHo
@@ -211,11 +213,12 @@ The {security-api-url}org/springframework/security/web/context/SecurityContextHo
<1> Before running the rest of the application, `SecurityContextHolderFilter` loads the `SecurityContext` from the `SecurityContextRepository` and sets it on the `SecurityContextHolder`.
<2> Next, the application is ran.
image:{icondir}/number_1.png[] Before running the rest of the application, `SecurityContextHolderFilter` loads the `SecurityContext` from the `SecurityContextRepository` and sets it on the `SecurityContextHolder`.
image:{icondir}/number_2.png[] Next, the application is ran.
Unlike, xref:servlet/authentication/persistence.adoc#securitycontextpersistencefilter[`SecurityContextPersistenceFilter`], `SecurityContextHolderFilter` only loads the `SecurityContext` it does not save the `SecurityContext`.
This means that when using `SecurityContextHolderFilter`, it is required that the `SecurityContext` is explicitly saved.