Fix ordering problem in tests

The Zuul filter registry has to be cleareed (including a cache in
a private field in FilterLoader, yuck).

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/ZuulConfiguration.java

@@ -53,8 +53,8 @@ public class ZuulConfiguration {
 		private Map<String, ZuulFilter> filters;
 
 		@Bean
-		public FilterInitializer zuulFilterInitializer() {
-			return new FilterInitializer(filters);
+		public ZuulFilterInitializer zuulFilterInitializer() {
+			return new ZuulFilterInitializer(filters);
 		}
 
 	}

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/ZuulFilterInitializer.java

@@ -1,5 +1,6 @@
 package org.springframework.cloud.netflix.zuul;
 
+import java.lang.reflect.Field;
 import java.util.Map;
 
 import javax.servlet.ServletContextEvent;
@@ -7,24 +8,25 @@ import javax.servlet.ServletContextListener;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.util.ReflectionUtils;
 
+import com.netflix.zuul.FilterLoader;
 import com.netflix.zuul.ZuulFilter;
 import com.netflix.zuul.filters.FilterRegistry;
 import com.netflix.zuul.monitoring.MonitoringHelper;
 
 /**
- * User: spencergibb
- * Date: 4/24/14
- * Time: 9:23 PM
+ * @author Spencer Gibb
+ * 
  * TODO:  .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
  */
-public class FilterInitializer implements ServletContextListener {
+public class ZuulFilterInitializer implements ServletContextListener {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(FilterInitializer.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(ZuulFilterInitializer.class);
 
     private Map<String, ZuulFilter> filters;
 
-	public FilterInitializer(Map<String, ZuulFilter> filters) {
+	public ZuulFilterInitializer(Map<String, ZuulFilter> filters) {
 		this.filters = filters;
 	}
 
@@ -46,8 +48,22 @@ public class FilterInitializer implements ServletContextListener {
     @Override
     public void contextDestroyed(ServletContextEvent sce) {
         LOGGER.info("Stopping filter initializer context listener");
+        FilterRegistry registry = FilterRegistry.instance();
+        for (Map.Entry<String, ZuulFilter> entry : filters.entrySet()) {
+            registry.remove(entry.getKey());
+        }
+        clearLoaderCache();
     }
 
+	private void clearLoaderCache() {
+		FilterLoader instance = FilterLoader.getInstance();
+		Field field = ReflectionUtils.findField(FilterLoader.class, "hashFiltersByType");
+		ReflectionUtils.makeAccessible(field);
+		@SuppressWarnings("rawtypes")
+		Map cache = (Map) ReflectionUtils.getField(field, instance);
+		cache.clear();
+	}
+
     /*private void initGroovyFilterManager() {
 
         //TODO: support groovy filters loaded from filesystem in proxy

spring-cloud-netflix-core/src/test/java/org/springframework/cloud/netflix/AdhocTestSuite.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix;
+
+import org.junit.Ignore;
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+import org.junit.runners.Suite.SuiteClasses;
+import org.springframework.cloud.netflix.zuul.SampleZuulProxyApplicationTests;
+import org.springframework.cloud.netflix.zuul.SimpleZuulServerApplicationTests;
+
+/**
+ * A test suite for probing weird ordering problems in the tests.
+ *
+ * @author Dave Syer
+ */
+@RunWith(Suite.class)
+@SuiteClasses({ SimpleZuulServerApplicationTests.class, SampleZuulProxyApplicationTests.class })
+@Ignore
+public class AdhocTestSuite {
+
+}

spring-cloud-netflix-core/src/test/resources/application.yml

@@ -2,7 +2,7 @@ server:
   port: 9999
 logging:
   level:
-    org.springframework.web: DEBUG
+#    org.springframework.web: DEBUG
 spring:
   application:
     name: testclient