Fix test failures when running in Eclipse

Update MultipartAutoConfigurationTests to reset the Tomcat URL factory.

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/MultipartAutoConfigurationTests.java

@@ -17,10 +17,14 @@
 package org.springframework.boot.autoconfigure.web;
 
 import java.net.URI;
+import java.net.URL;
 
 import javax.servlet.MultipartConfigElement;
 
+import org.apache.catalina.webresources.TomcatURLStreamHandlerFactory;
 import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -76,6 +80,14 @@ public class MultipartAutoConfigurationTests {
 		}
 	}
 
+	@BeforeClass
+	@AfterClass
+	public static void uninstallUrlStreamHandlerFactory() {
+		ReflectionTestUtils.setField(TomcatURLStreamHandlerFactory.class, "instance",
+				null);
+		ReflectionTestUtils.setField(URL.class, "factory", null);
+	}
+
 	@Test
 	public void containerWithNothing() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext(

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfigurationTests.java

@@ -17,9 +17,13 @@
 package org.springframework.boot.autoconfigure.web;
 
 import java.io.File;
+import java.net.URL;
 
+import org.apache.catalina.webresources.TomcatURLStreamHandlerFactory;
 import org.junit.After;
+import org.junit.AfterClass;
 import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -38,6 +42,7 @@ import org.springframework.boot.test.util.EnvironmentTestUtils;
 import org.springframework.context.ApplicationContextException;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
@@ -70,6 +75,14 @@ public class ServerPropertiesAutoConfigurationTests {
 		}
 	}
 
+	@BeforeClass
+	@AfterClass
+	public static void uninstallUrlStreamHandlerFactory() {
+		ReflectionTestUtils.setField(TomcatURLStreamHandlerFactory.class, "instance",
+				null);
+		ReflectionTestUtils.setField(URL.class, "factory", null);
+	}
+
 	@Test
 	public void createFromConfigClass() throws Exception {
 		this.context = new AnnotationConfigEmbeddedWebApplicationContext();

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/websocket/WebSocketAutoConfigurationTests.java

@@ -16,10 +16,15 @@
 
 package org.springframework.boot.autoconfigure.websocket;
 
+import java.net.URL;
+
 import javax.websocket.server.ServerContainer;
 
+import org.apache.catalina.webresources.TomcatURLStreamHandlerFactory;
 import org.junit.After;
+import org.junit.AfterClass;
 import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Test;
 
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
@@ -29,6 +34,7 @@ import org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletConta
 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -53,6 +59,14 @@ public class WebSocketAutoConfigurationTests {
 		}
 	}
 
+	@BeforeClass
+	@AfterClass
+	public static void uninstallUrlStreamHandlerFactory() {
+		ReflectionTestUtils.setField(TomcatURLStreamHandlerFactory.class, "instance",
+				null);
+		ReflectionTestUtils.setField(URL.class, "factory", null);
+	}
+
 	@Test
 	public void tomcatServerContainerIsAvailableFromTheServletContext() {
 		serverContainerIsAvailableFromTheServletContext(TomcatConfiguration.class,