Removed unused imports & organized the remnants.

core/src/main/java/org/acegisecurity/ui/AbstractProcessingFilter.java

@@ -15,6 +15,18 @@
 
 package net.sf.acegisecurity.ui;
 
+import java.io.IOException;
+import java.util.Properties;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
 import net.sf.acegisecurity.Authentication;
 import net.sf.acegisecurity.AuthenticationException;
 import net.sf.acegisecurity.AuthenticationManager;
@@ -25,30 +37,11 @@ import net.sf.acegisecurity.ui.rememberme.RememberMeServices;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-
 import org.springframework.beans.factory.InitializingBean;
-import org.springframework.beans.BeansException;
-
-import org.springframework.context.ApplicationContext;
-import org.springframework.context.ApplicationContextAware;
-import org.springframework.context.ApplicationEventPublisherAware;
 import org.springframework.context.ApplicationEventPublisher;
-
+import org.springframework.context.ApplicationEventPublisherAware;
 import org.springframework.util.Assert;
 
-import java.io.IOException;
-
-import java.util.Properties;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 
 /**
  * Abstract processor of browser-based HTTP-based authentication requests.