Test Refactor (YamlServletProfileInitializerTests)

- Should cleanup the Log Configuration

[#162794188] https://www.pivotaltracker.com/story/show/162794188

server/src/test/java/org/cloudfoundry/identity/uaa/impl/config/LoggerContextCleanupExtension.java

@@ -0,0 +1,27 @@
+package org.cloudfoundry.identity.uaa.impl.config;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.core.LoggerContext;
+import org.junit.jupiter.api.extension.AfterAllCallback;
+import org.junit.jupiter.api.extension.BeforeAllCallback;
+import org.junit.jupiter.api.extension.ExtensionContext;
+
+import java.net.URI;
+
+public class LoggerContextCleanupExtension implements BeforeAllCallback, AfterAllCallback {
+
+    private URI configLocation = null;
+
+    @Override
+    public void beforeAll(ExtensionContext context) {
+        LoggerContext loggerContext = (LoggerContext) LogManager.getContext(false);
+        configLocation = loggerContext.getConfigLocation();
+    }
+
+    @Override
+    public void afterAll(ExtensionContext context) {
+        LoggerContext loggerContext = (LoggerContext) LogManager.getContext(false);
+        loggerContext.setConfigLocation(configLocation);
+    }
+
+}

server/src/test/java/org/cloudfoundry/identity/uaa/impl/config/YamlServletProfileInitializerTests.java

@@ -13,7 +13,6 @@
 import org.springframework.core.env.StandardEnvironment;
 import org.springframework.core.io.ByteArrayResource;
 import org.springframework.security.web.session.HttpSessionEventPublisher;
-import org.springframework.util.Log4jConfigurer;
 import org.springframework.web.context.ConfigurableWebApplicationContext;
 import org.springframework.web.context.support.StandardServletEnvironment;
 
@@ -27,6 +26,7 @@
 
 @ExtendWith(PollutionPreventionExtension.class)
 @ExtendWith(SpringProfileCleanupExtension.class)
+@ExtendWith(LoggerContextCleanupExtension.class)
 class YamlServletProfileInitializerTests {
 
     private YamlServletProfileInitializer initializer;
@@ -57,11 +57,10 @@ void setup() {
     }
 
     @AfterEach
-    void cleanup() throws Exception {
+    void cleanup() {
         System.clearProperty("APPLICATION_CONFIG_URL");
         System.clearProperty("LOG_FILE");
         System.clearProperty("LOG_PATH");
-        Log4jConfigurer.initLogging("classpath:log4j.properties");
     }
 
     @Test