diff --git a/cas/src/main/java/org/springframework/security/cas/authentication/CasAssertionAuthenticationToken.java b/cas/src/main/java/org/springframework/security/cas/authentication/CasAssertionAuthenticationToken.java
index 8db8b8fb98..37eb15c2ba 100644
--- a/cas/src/main/java/org/springframework/security/cas/authentication/CasAssertionAuthenticationToken.java
+++ b/cas/src/main/java/org/springframework/security/cas/authentication/CasAssertionAuthenticationToken.java
@@ -19,6 +19,7 @@ import java.util.ArrayList;
 import org.jasig.cas.client.validation.Assertion;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 /**
  * Temporary authentication object needed to load the user details service.
@@ -28,6 +29,8 @@ import org.springframework.security.core.GrantedAuthority;
  */
 public final class CasAssertionAuthenticationToken extends AbstractAuthenticationToken {
 
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private final Assertion assertion;
 
     private final String ticket;
diff --git a/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationToken.java b/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationToken.java
index c5ab824c68..ffa7897809 100644
--- a/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationToken.java
+++ b/cas/src/main/java/org/springframework/security/cas/authentication/CasAuthenticationToken.java
@@ -21,6 +21,7 @@ import java.util.Collection;
 import org.jasig.cas.client.validation.Assertion;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.security.core.userdetails.UserDetails;
 
 /**
@@ -30,9 +31,10 @@ import org.springframework.security.core.userdetails.UserDetails;
  * @author Scott Battaglia
  */
 public class CasAuthenticationToken extends AbstractAuthenticationToken implements Serializable {
-    //~ Instance fields ================================================================================================
 
-    private static final long serialVersionUID = 1L;
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
+    //~ Instance fields ================================================================================================
     private final Object credentials;
     private final Object principal;
     private final UserDetails userDetails;
diff --git a/core/src/main/java/org/springframework/security/access/intercept/RunAsUserToken.java b/core/src/main/java/org/springframework/security/access/intercept/RunAsUserToken.java
index 3ad1fec576..73c634d249 100644
--- a/core/src/main/java/org/springframework/security/access/intercept/RunAsUserToken.java
+++ b/core/src/main/java/org/springframework/security/access/intercept/RunAsUserToken.java
@@ -21,6 +21,7 @@ import java.util.Collection;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -29,6 +30,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @author Ben Alex
  */
 public class RunAsUserToken extends AbstractAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final Class<? extends Authentication> originalAuthentication;
diff --git a/core/src/main/java/org/springframework/security/authentication/AuthenticationDetails.java b/core/src/main/java/org/springframework/security/authentication/AuthenticationDetails.java
index 97afee1215..cb6a44fbd3 100755
--- a/core/src/main/java/org/springframework/security/authentication/AuthenticationDetails.java
+++ b/core/src/main/java/org/springframework/security/authentication/AuthenticationDetails.java
@@ -1,5 +1,7 @@
 package org.springframework.security.authentication;
 
+import org.springframework.security.core.SpringSecurityCoreVersion;
+
 import java.io.Serializable;
 
 /**
@@ -10,6 +12,9 @@ import java.io.Serializable;
 */
 @Deprecated
 public class AuthenticationDetails implements Serializable {
+
+   private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
    //~ Instance fields ================================================================================================
 
    private final String context;
diff --git a/core/src/main/java/org/springframework/security/authentication/RememberMeAuthenticationToken.java b/core/src/main/java/org/springframework/security/authentication/RememberMeAuthenticationToken.java
index a720829a82..2315f0fab8 100644
--- a/core/src/main/java/org/springframework/security/authentication/RememberMeAuthenticationToken.java
+++ b/core/src/main/java/org/springframework/security/authentication/RememberMeAuthenticationToken.java
@@ -18,6 +18,7 @@ package org.springframework.security.authentication;
 import java.util.Collection;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -30,6 +31,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @author Luke Taylor
  */
 public class RememberMeAuthenticationToken extends AbstractAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final Object principal;
diff --git a/core/src/main/java/org/springframework/security/authentication/UsernamePasswordAuthenticationToken.java b/core/src/main/java/org/springframework/security/authentication/UsernamePasswordAuthenticationToken.java
index b1956d784e..2e4181f203 100644
--- a/core/src/main/java/org/springframework/security/authentication/UsernamePasswordAuthenticationToken.java
+++ b/core/src/main/java/org/springframework/security/authentication/UsernamePasswordAuthenticationToken.java
@@ -18,6 +18,7 @@ package org.springframework.security.authentication;
 import java.util.Collection;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -31,6 +32,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @author Ben Alex
  */
 public class UsernamePasswordAuthenticationToken extends AbstractAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final Object principal;
diff --git a/core/src/main/java/org/springframework/security/authentication/jaas/JaasAuthenticationToken.java b/core/src/main/java/org/springframework/security/authentication/jaas/JaasAuthenticationToken.java
index a7d18ea0d5..59299d858f 100644
--- a/core/src/main/java/org/springframework/security/authentication/jaas/JaasAuthenticationToken.java
+++ b/core/src/main/java/org/springframework/security/authentication/jaas/JaasAuthenticationToken.java
@@ -20,6 +20,7 @@ import java.util.List;
 
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 import javax.security.auth.login.LoginContext;
 
@@ -30,6 +31,9 @@ import javax.security.auth.login.LoginContext;
  * @author Ray Krueger
  */
 public class JaasAuthenticationToken extends UsernamePasswordAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final transient LoginContext loginContext;
diff --git a/core/src/main/java/org/springframework/security/authentication/jaas/JaasGrantedAuthority.java b/core/src/main/java/org/springframework/security/authentication/jaas/JaasGrantedAuthority.java
index 3bfcc36c45..f35e457d85 100644
--- a/core/src/main/java/org/springframework/security/authentication/jaas/JaasGrantedAuthority.java
+++ b/core/src/main/java/org/springframework/security/authentication/jaas/JaasGrantedAuthority.java
@@ -16,6 +16,7 @@
 package org.springframework.security.authentication.jaas;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 import java.security.Principal;
 
@@ -29,13 +30,12 @@ import java.security.Principal;
  * @see AuthorityGranter
  */
 public final class JaasGrantedAuthority implements GrantedAuthority {
-    //~ Instance fields ================================================================================================
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
 
     private final String role;
     private final Principal principal;
 
-    //~ Constructors ===================================================================================================
-
     public JaasGrantedAuthority(String role, Principal principal) {
         this.role = role;
         this.principal = principal;
diff --git a/core/src/main/java/org/springframework/security/authentication/rcp/RemoteAuthenticationException.java b/core/src/main/java/org/springframework/security/authentication/rcp/RemoteAuthenticationException.java
index de73f62a28..ab4e013d6d 100644
--- a/core/src/main/java/org/springframework/security/authentication/rcp/RemoteAuthenticationException.java
+++ b/core/src/main/java/org/springframework/security/authentication/rcp/RemoteAuthenticationException.java
@@ -16,6 +16,7 @@
 package org.springframework.security.authentication.rcp;
 
 import org.springframework.core.NestedRuntimeException;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 /**
  * Thrown if a <code>RemoteAuthenticationManager</code> cannot validate the presented authentication request.
@@ -27,6 +28,9 @@ import org.springframework.core.NestedRuntimeException;
  * @author Ben Alex
  */
 public class RemoteAuthenticationException extends NestedRuntimeException {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Constructors ===================================================================================================
 
     /**
diff --git a/core/src/main/java/org/springframework/security/core/SpringSecurityCoreVersion.java b/core/src/main/java/org/springframework/security/core/SpringSecurityCoreVersion.java
index a57cd0cea1..f0a16f0a9c 100644
--- a/core/src/main/java/org/springframework/security/core/SpringSecurityCoreVersion.java
+++ b/core/src/main/java/org/springframework/security/core/SpringSecurityCoreVersion.java
@@ -12,13 +12,20 @@ import org.springframework.core.SpringVersion;
 public class SpringSecurityCoreVersion {
     private static final Log logger = LogFactory.getLog(SpringSecurityCoreVersion.class);
 
+    /**
+     * Global Serialization value for Spring Security classes.
+     *
+     * N.B. Classes are not intended to be serializable between different versions.
+     * See SEC-1709 for why we still need a serial version.
+     */
+    public static final long SERIAL_VERSION_UID = 310L;
+
     static {
         // Check Spring Compatibility
         String springVersion = SpringVersion.getVersion();
         String version = getVersion();
 
         if (springVersion != null) {
-            // TODO: Generate version class and information dynamically from a template in the build file
             logger.info("You are running with Spring Security Core " + version);
             if (!springVersion.startsWith("3")) {
                 logger.error("Spring Major version '3' expected, but you are running with version: "
diff --git a/core/src/main/java/org/springframework/security/core/authority/GrantedAuthoritiesContainerImpl.java b/core/src/main/java/org/springframework/security/core/authority/GrantedAuthoritiesContainerImpl.java
index 40ea055343..2cfc281738 100644
--- a/core/src/main/java/org/springframework/security/core/authority/GrantedAuthoritiesContainerImpl.java
+++ b/core/src/main/java/org/springframework/security/core/authority/GrantedAuthoritiesContainerImpl.java
@@ -3,10 +3,14 @@ package org.springframework.security.core.authority;
 import java.util.*;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 @Deprecated
 public class GrantedAuthoritiesContainerImpl implements MutableGrantedAuthoritiesContainer {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private List<GrantedAuthority> authorities;
 
     public void setGrantedAuthorities(Collection<? extends GrantedAuthority> newAuthorities) {
diff --git a/core/src/main/java/org/springframework/security/core/authority/GrantedAuthorityImpl.java b/core/src/main/java/org/springframework/security/core/authority/GrantedAuthorityImpl.java
index 6235771d53..30cf605642 100644
--- a/core/src/main/java/org/springframework/security/core/authority/GrantedAuthorityImpl.java
+++ b/core/src/main/java/org/springframework/security/core/authority/GrantedAuthorityImpl.java
@@ -17,6 +17,7 @@ package org.springframework.security.core.authority;
 
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 
@@ -31,6 +32,9 @@ import org.springframework.util.Assert;
  */
 @Deprecated
 public class GrantedAuthorityImpl implements GrantedAuthority {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final String role;
diff --git a/core/src/main/java/org/springframework/security/core/authority/SimpleGrantedAuthority.java b/core/src/main/java/org/springframework/security/core/authority/SimpleGrantedAuthority.java
index 51aefbd4ce..ca8dfcb962 100644
--- a/core/src/main/java/org/springframework/security/core/authority/SimpleGrantedAuthority.java
+++ b/core/src/main/java/org/springframework/security/core/authority/SimpleGrantedAuthority.java
@@ -1,6 +1,7 @@
 package org.springframework.security.core.authority;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 /**
@@ -13,6 +14,9 @@ import org.springframework.util.Assert;
  * @author Luke Taylor
  */
 public final class SimpleGrantedAuthority implements GrantedAuthority {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private final String role;
 
     public SimpleGrantedAuthority(String role) {
diff --git a/core/src/main/java/org/springframework/security/core/context/SecurityContextImpl.java b/core/src/main/java/org/springframework/security/core/context/SecurityContextImpl.java
index e60bdf2f0f..0018fdd88d 100644
--- a/core/src/main/java/org/springframework/security/core/context/SecurityContextImpl.java
+++ b/core/src/main/java/org/springframework/security/core/context/SecurityContextImpl.java
@@ -16,6 +16,7 @@
 package org.springframework.security.core.context;
 
 import org.springframework.security.core.Authentication;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -26,6 +27,9 @@ import org.springframework.security.core.Authentication;
  * @author Ben Alex
  */
 public class SecurityContextImpl implements SecurityContext {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private Authentication authentication;
diff --git a/core/src/main/java/org/springframework/security/core/session/SessionInformation.java b/core/src/main/java/org/springframework/security/core/session/SessionInformation.java
index 8313e5d254..496a987c54 100644
--- a/core/src/main/java/org/springframework/security/core/session/SessionInformation.java
+++ b/core/src/main/java/org/springframework/security/core/session/SessionInformation.java
@@ -15,6 +15,7 @@
 
 package org.springframework.security.core.session;
 
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 import java.util.Date;
@@ -35,6 +36,9 @@ import java.io.Serializable;
  * @author Ben Alex
  */
 public class SessionInformation implements Serializable {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private Date lastRequest;
diff --git a/core/src/main/java/org/springframework/security/core/userdetails/User.java b/core/src/main/java/org/springframework/security/core/userdetails/User.java
index d56ccd1220..35be47b649 100644
--- a/core/src/main/java/org/springframework/security/core/userdetails/User.java
+++ b/core/src/main/java/org/springframework/security/core/userdetails/User.java
@@ -25,6 +25,7 @@ import java.util.TreeSet;
 
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.CredentialsContainer;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 /**
@@ -43,6 +44,9 @@ import org.springframework.util.Assert;
  * @author Luke Taylor
  */
 public class User implements UserDetails, CredentialsContainer {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
     private String password;
     private final String username;
@@ -149,6 +153,8 @@ public class User implements UserDetails, CredentialsContainer {
     }
 
     private static class AuthorityComparator implements Comparator<GrantedAuthority>, Serializable {
+        private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
         public int compare(GrantedAuthority g1, GrantedAuthority g2) {
             // Neither should ever be null as each entry is checked before adding it to the set.
             // If the authority is null, it is a custom authority and should precede others.
diff --git a/core/src/main/java/org/springframework/security/provisioning/MutableUser.java b/core/src/main/java/org/springframework/security/provisioning/MutableUser.java
index 821a0ea9b3..1135cd1323 100644
--- a/core/src/main/java/org/springframework/security/provisioning/MutableUser.java
+++ b/core/src/main/java/org/springframework/security/provisioning/MutableUser.java
@@ -3,6 +3,7 @@ package org.springframework.security.provisioning;
 import java.util.Collection;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.security.core.userdetails.UserDetails;
 
 /**
@@ -11,6 +12,9 @@ import org.springframework.security.core.userdetails.UserDetails;
  * @since 3.1
  */
 class MutableUser implements MutableUserDetails {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private String password;
     private final UserDetails delegate;
 
diff --git a/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java b/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
index b2bb2834c4..5c0301cd65 100644
--- a/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
+++ b/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
@@ -15,6 +15,7 @@
 
 package org.springframework.security.remoting.rmi;
 
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.security.core.context.SecurityContext;
 import org.springframework.security.core.context.SecurityContextHolder;
 
@@ -43,7 +44,8 @@ import java.lang.reflect.InvocationTargetException;
  * @author Ben Alex
  */
 public class ContextPropagatingRemoteInvocation extends RemoteInvocation {
-    //~ Static fields/initializers =====================================================================================
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
 
     private static final Log logger = LogFactory.getLog(ContextPropagatingRemoteInvocation.class);
 
diff --git a/ldap/src/main/java/org/springframework/security/ldap/userdetails/InetOrgPerson.java b/ldap/src/main/java/org/springframework/security/ldap/userdetails/InetOrgPerson.java
index f9309f7745..d4e0262b4b 100644
--- a/ldap/src/main/java/org/springframework/security/ldap/userdetails/InetOrgPerson.java
+++ b/ldap/src/main/java/org/springframework/security/ldap/userdetails/InetOrgPerson.java
@@ -16,6 +16,7 @@ package org.springframework.security.ldap.userdetails;
 
 import org.springframework.ldap.core.DirContextAdapter;
 import org.springframework.ldap.core.DirContextOperations;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -28,6 +29,9 @@ import org.springframework.ldap.core.DirContextOperations;
  * @author Luke
  */
 public class InetOrgPerson extends Person {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private String carLicense;
     // Person.cn
     private String destinationIndicator;
diff --git a/ldap/src/main/java/org/springframework/security/ldap/userdetails/LdapUserDetailsImpl.java b/ldap/src/main/java/org/springframework/security/ldap/userdetails/LdapUserDetailsImpl.java
index 2ae9be71ee..1ea0ed91b8 100644
--- a/ldap/src/main/java/org/springframework/security/ldap/userdetails/LdapUserDetailsImpl.java
+++ b/ldap/src/main/java/org/springframework/security/ldap/userdetails/LdapUserDetailsImpl.java
@@ -24,6 +24,7 @@ import javax.naming.Name;
 
 import org.springframework.ldap.core.DirContextOperations;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.security.core.authority.AuthorityUtils;
 import org.springframework.security.ldap.ppolicy.PasswordPolicyData;
 import org.springframework.util.Assert;
@@ -46,6 +47,8 @@ import org.springframework.util.Assert;
  */
 public class LdapUserDetailsImpl implements LdapUserDetails, PasswordPolicyData {
 
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private String dn;
diff --git a/ldap/src/main/java/org/springframework/security/ldap/userdetails/Person.java b/ldap/src/main/java/org/springframework/security/ldap/userdetails/Person.java
index cce9ad1716..42177803b7 100644
--- a/ldap/src/main/java/org/springframework/security/ldap/userdetails/Person.java
+++ b/ldap/src/main/java/org/springframework/security/ldap/userdetails/Person.java
@@ -15,6 +15,7 @@
 package org.springframework.security.ldap.userdetails;
 
 
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.util.Assert;
 
 import org.springframework.ldap.core.DirContextAdapter;
@@ -33,6 +34,9 @@ import java.util.Arrays;
  * @since 2.0
  */
 public class Person extends LdapUserDetailsImpl {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private String sn;
     private String description;
     private String telephoneNumber;
diff --git a/openid/src/main/java/org/springframework/security/openid/OpenIDAuthenticationToken.java b/openid/src/main/java/org/springframework/security/openid/OpenIDAuthenticationToken.java
index 48332a4545..c0d7dac9d6 100644
--- a/openid/src/main/java/org/springframework/security/openid/OpenIDAuthenticationToken.java
+++ b/openid/src/main/java/org/springframework/security/openid/OpenIDAuthenticationToken.java
@@ -20,6 +20,7 @@ import java.util.List;
 
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 /**
  * OpenID Authentication Token
@@ -27,6 +28,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @author Robin Bramley
  */
 public class OpenIDAuthenticationToken extends AbstractAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final OpenIDAuthenticationStatus status;
diff --git a/web/src/main/java/org/springframework/security/web/authentication/WebAuthenticationDetails.java b/web/src/main/java/org/springframework/security/web/authentication/WebAuthenticationDetails.java
index 291383be50..7c39533127 100644
--- a/web/src/main/java/org/springframework/security/web/authentication/WebAuthenticationDetails.java
+++ b/web/src/main/java/org/springframework/security/web/authentication/WebAuthenticationDetails.java
@@ -15,6 +15,8 @@
 
 package org.springframework.security.web.authentication;
 
+import org.springframework.security.core.SpringSecurityCoreVersion;
+
 import java.io.Serializable;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpSession;
@@ -27,6 +29,9 @@ import javax.servlet.http.HttpSession;
  * @author Luke Taylor
  */
 public class WebAuthenticationDetails implements Serializable {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
 
     private final String remoteAddress;
diff --git a/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedAuthenticationToken.java b/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedAuthenticationToken.java
index b6854d6481..417a38ed84 100755
--- a/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedAuthenticationToken.java
+++ b/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedAuthenticationToken.java
@@ -4,6 +4,7 @@ import java.util.Collection;
 
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -14,6 +15,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @since 2.0
  */
 public class PreAuthenticatedAuthenticationToken extends AbstractAuthenticationToken {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private final Object principal;
     private final Object credentials;
 
diff --git a/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails.java b/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails.java
index ed92d06eff..33f121196a 100755
--- a/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails.java
+++ b/web/src/main/java/org/springframework/security/web/authentication/preauth/PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails.java
@@ -1,6 +1,7 @@
 package org.springframework.security.web.authentication.preauth;
 
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 import org.springframework.security.core.authority.GrantedAuthoritiesContainer;
 import org.springframework.security.web.authentication.WebAuthenticationDetails;
 
@@ -18,6 +19,8 @@ import java.util.*;
 public class PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails extends WebAuthenticationDetails implements
         GrantedAuthoritiesContainer {
 
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     private final List<GrantedAuthority> authorities;
 
     public PreAuthenticatedGrantedAuthoritiesWebAuthenticationDetails(HttpServletRequest request,
diff --git a/web/src/main/java/org/springframework/security/web/authentication/switchuser/SwitchUserGrantedAuthority.java b/web/src/main/java/org/springframework/security/web/authentication/switchuser/SwitchUserGrantedAuthority.java
index 2a08cf926b..2ade5619ca 100644
--- a/web/src/main/java/org/springframework/security/web/authentication/switchuser/SwitchUserGrantedAuthority.java
+++ b/web/src/main/java/org/springframework/security/web/authentication/switchuser/SwitchUserGrantedAuthority.java
@@ -17,6 +17,7 @@ package org.springframework.security.web.authentication.switchuser;
 
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.SpringSecurityCoreVersion;
 
 
 /**
@@ -30,6 +31,9 @@ import org.springframework.security.core.GrantedAuthority;
  * @see org.springframework.security.web.authentication.switchuser.SwitchUserFilter
  */
 public final class SwitchUserGrantedAuthority implements GrantedAuthority {
+
+    private static final long serialVersionUID = SpringSecurityCoreVersion.SERIAL_VERSION_UID;
+
     //~ Instance fields ================================================================================================
     private final String role;
     private final Authentication source;