diff --git a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringDigestPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringDigestPasswordValidationCallbackHandler.java
index 7a7b026d..f3218788 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringDigestPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringDigestPasswordValidationCallbackHandler.java
@@ -22,6 +22,7 @@ import javax.security.auth.callback.UnsupportedCallbackException;
 import org.apache.ws.security.WSPasswordCallback;
 import org.apache.ws.security.WSUsernameTokenPrincipal;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.security.context.SecurityContextHolder;
 import org.springframework.security.providers.UsernamePasswordAuthenticationToken;
@@ -45,7 +46,8 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see org.springframework.security.ui.digestauth.DigestProcessingFilter
  * @since 1.5.0
  */
-public class SpringDigestPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler {
+public class SpringDigestPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler
+        implements InitializingBean {
 
     private UserCache userCache = new NullUserCache();
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringPlainTextPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringPlainTextPasswordValidationCallbackHandler.java
index a3127e78..693b0524 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringPlainTextPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/SpringPlainTextPasswordValidationCallbackHandler.java
@@ -22,6 +22,7 @@ import javax.security.auth.callback.UnsupportedCallbackException;
 import org.apache.ws.security.WSPasswordCallback;
 import org.apache.ws.security.WSSecurityException;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.security.Authentication;
 import org.springframework.security.AuthenticationException;
 import org.springframework.security.AuthenticationManager;
@@ -43,7 +44,8 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see org.springframework.security.ui.basicauth.BasicProcessingFilter
  * @since 1.5.0
  */
-public class SpringPlainTextPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler {
+public class SpringPlainTextPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler
+        implements InitializingBean {
 
     private AuthenticationManager authenticationManager;
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
index c9b55be5..91d59949 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
@@ -29,6 +29,7 @@ import org.acegisecurity.userdetails.UsernameNotFoundException;
 import org.apache.ws.security.WSPasswordCallback;
 import org.apache.ws.security.WSUsernameTokenPrincipal;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.util.Assert;
 import org.springframework.ws.soap.security.callback.CleanupCallback;
@@ -47,7 +48,8 @@ import org.springframework.ws.soap.security.wss4j.callback.UsernameTokenPrincipa
  * @see org.acegisecurity.ui.digestauth.DigestProcessingFilter
  * @since 1.5.0
  */
-public class AcegiDigestPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler {
+public class AcegiDigestPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler
+        implements InitializingBean {
 
     private UserCache userCache = new NullUserCache();
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
index 8a95664e..8f91ed3d 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/wss4j/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
@@ -27,6 +27,7 @@ import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
 import org.apache.ws.security.WSPasswordCallback;
 import org.apache.ws.security.WSSecurityException;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.Assert;
 import org.springframework.ws.soap.security.callback.CleanupCallback;
 import org.springframework.ws.soap.security.wss4j.callback.AbstractWsPasswordCallbackHandler;
@@ -44,7 +45,8 @@ import org.springframework.ws.soap.security.wss4j.callback.AbstractWsPasswordCal
  * @see org.acegisecurity.ui.basicauth.BasicProcessingFilter
  * @since 1.5.0
  */
-public class AcegiPlainTextPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler {
+public class AcegiPlainTextPasswordValidationCallbackHandler extends AbstractWsPasswordCallbackHandler
+        implements InitializingBean {
 
     private AuthenticationManager authenticationManager;
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringCertificateValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringCertificateValidationCallbackHandler.java
index 3d4d884e..780a90ee 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringCertificateValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringCertificateValidationCallbackHandler.java
@@ -23,6 +23,7 @@ import javax.security.auth.callback.UnsupportedCallbackException;
 
 import com.sun.xml.wss.impl.callback.CertificateValidationCallback;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.security.Authentication;
 import org.springframework.security.AuthenticationException;
 import org.springframework.security.AuthenticationManager;
@@ -49,7 +50,7 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see com.sun.xml.wss.impl.callback.CertificateValidationCallback
  * @since 1.5.0
  */
-public class SpringCertificateValidationCallbackHandler extends AbstractCallbackHandler {
+public class SpringCertificateValidationCallbackHandler extends AbstractCallbackHandler implements InitializingBean {
 
     private AuthenticationManager authenticationManager;
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringDigestPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringDigestPasswordValidationCallbackHandler.java
index ae120ccc..3f6af7d4 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringDigestPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringDigestPasswordValidationCallbackHandler.java
@@ -23,6 +23,7 @@ import javax.security.auth.callback.UnsupportedCallbackException;
 import com.sun.xml.wss.impl.callback.PasswordValidationCallback;
 import com.sun.xml.wss.impl.callback.TimestampValidationCallback;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.security.context.SecurityContextHolder;
 import org.springframework.security.providers.UsernamePasswordAuthenticationToken;
@@ -52,7 +53,7 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see org.springframework.security.ui.digestauth.DigestProcessingFilter
  * @since 1.5.0
  */
-public class SpringDigestPasswordValidationCallbackHandler extends AbstractCallbackHandler {
+public class SpringDigestPasswordValidationCallbackHandler extends AbstractCallbackHandler implements InitializingBean {
 
     private UserCache userCache = new NullUserCache();
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringPlainTextPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringPlainTextPasswordValidationCallbackHandler.java
index 3e7046f4..a70e4fe9 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringPlainTextPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/SpringPlainTextPasswordValidationCallbackHandler.java
@@ -22,6 +22,7 @@ import javax.security.auth.callback.UnsupportedCallbackException;
 
 import com.sun.xml.wss.impl.callback.PasswordValidationCallback;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.security.Authentication;
 import org.springframework.security.AuthenticationException;
 import org.springframework.security.AuthenticationManager;
@@ -49,7 +50,8 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see org.springframework.security.ui.basicauth.BasicProcessingFilter
  * @since 1.5.0
  */
-public class SpringPlainTextPasswordValidationCallbackHandler extends AbstractCallbackHandler {
+public class SpringPlainTextPasswordValidationCallbackHandler extends AbstractCallbackHandler
+        implements InitializingBean {
 
     private AuthenticationManager authenticationManager;
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiCertificateValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiCertificateValidationCallbackHandler.java
index 91b887b8..fda54f61 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiCertificateValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiCertificateValidationCallbackHandler.java
@@ -28,6 +28,7 @@ import org.acegisecurity.AuthenticationManager;
 import org.acegisecurity.context.SecurityContextHolder;
 import org.acegisecurity.providers.x509.X509AuthenticationToken;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.Assert;
 import org.springframework.ws.soap.security.callback.AbstractCallbackHandler;
 import org.springframework.ws.soap.security.callback.CleanupCallback;
@@ -48,7 +49,7 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see CertificateValidationCallback
  * @since 1.0.0
  */
-public class AcegiCertificateValidationCallbackHandler extends AbstractCallbackHandler {
+public class AcegiCertificateValidationCallbackHandler extends AbstractCallbackHandler implements InitializingBean {
 
     private AuthenticationManager authenticationManager;
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
index 5f05c397..3a41b7f2 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiDigestPasswordValidationCallbackHandler.java
@@ -30,6 +30,7 @@ import org.acegisecurity.userdetails.UserDetails;
 import org.acegisecurity.userdetails.UserDetailsService;
 import org.acegisecurity.userdetails.UsernameNotFoundException;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.util.Assert;
 import org.springframework.ws.soap.security.callback.AbstractCallbackHandler;
@@ -53,7 +54,7 @@ import org.springframework.ws.soap.security.xwss.callback.DefaultTimestampValida
  * @see org.acegisecurity.ui.digestauth.DigestProcessingFilter
  * @since 1.0.0
  */
-public class AcegiDigestPasswordValidationCallbackHandler extends AbstractCallbackHandler {
+public class AcegiDigestPasswordValidationCallbackHandler extends AbstractCallbackHandler implements InitializingBean {
 
     private UserCache userCache = new NullUserCache();
 
diff --git a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
index 0884f19f..bf9dd453 100644
--- a/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
+++ b/security/src/main/java/org/springframework/ws/soap/security/xwss/callback/acegi/AcegiPlainTextPasswordValidationCallbackHandler.java
@@ -27,6 +27,7 @@ import org.acegisecurity.AuthenticationManager;
 import org.acegisecurity.context.SecurityContextHolder;
 import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
 
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.util.Assert;
 import org.springframework.ws.soap.security.callback.AbstractCallbackHandler;
 import org.springframework.ws.soap.security.callback.CleanupCallback;
@@ -49,7 +50,8 @@ import org.springframework.ws.soap.security.callback.CleanupCallback;
  * @see org.acegisecurity.ui.basicauth.BasicProcessingFilter
  * @since 1.0.0
  */
-public class AcegiPlainTextPasswordValidationCallbackHandler extends AbstractCallbackHandler {
+public class AcegiPlainTextPasswordValidationCallbackHandler extends AbstractCallbackHandler
+        implements InitializingBean {
 
     private AuthenticationManager authenticationManager;