set the admin email by env var

docs-core/src/main/java/com/sismics/docs/core/constant/Constants.java

@@ -20,6 +20,11 @@ public class Constants {
      */
     public static final String DEFAULT_ADMIN_PASSWORD = "$2a$05$6Ny3TjrW3aVAL1or2SlcR.fhuDgPKp5jp.P9fBXwVNePgeLqb4i3C";
 
+    /**
+     * Administrator's default email.
+     */
+    public static final String DEFAULT_ADMIN_EMAIL = "admin@localhost";
+
     /**
      * RAM Lucene directory storage.
      */
@@ -73,6 +78,11 @@ public class Constants {
      */
     public static final String ADMIN_PASSWORD_INIT_ENV = "DOCS_ADMIN_PASSWORD_INIT";
 
+    /**
+     * Initial admin password environment variable.
+     */
+    public static final String ADMIN_EMAIL_INIT_ENV = "DOCS_ADMIN_EMAIL_INIT";
+
     /**
      * Expiration time of the password recovery in hours.
      */

docs-core/src/main/java/com/sismics/docs/core/model/context/AppContext.java

@@ -94,6 +94,17 @@ public class AppContext {
                 userDao.updateHashedPassword(adminUser);
             }
         }
+
+        // Change the admin email if needed
+        String envAdminEmail = System.getenv(Constants.ADMIN_EMAIL_INIT_ENV);
+        if (envAdminEmail != null) {
+            UserDao userDao = new UserDao();
+            User adminUser = userDao.getById("admin");
+            if (Constants.DEFAULT_ADMIN_EMAIL.equals(adminUser.getEmail())) {
+                adminUser.setEmail(envAdminEmail);
+                userDao.update(adminUser, "admin");
+            }
+        }
     }
     
     /**

docs-web-common/src/main/java/com/sismics/util/filter/SecurityFilter.java

@@ -113,7 +113,7 @@ public abstract class SecurityFilter implements Filter {
     }
 
     @Override
-    public void init(FilterConfig filterConfig) throws ServletException {
+    public void init(FilterConfig filterConfig) {
         // NOP
     }