Polish "Prefer file: to jar:file: URLs in launcher"

See gh-16248

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/archive/ExplodedArchive.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -117,7 +117,7 @@ public class ExplodedArchive implements Archive {
 	protected Archive getNestedArchive(Entry entry) throws IOException {
 		File file = ((FileEntry) entry).getFile();
 		return (file.isDirectory() ? new ExplodedArchive(file)
-				: new JarFileArchive(file, file.toURI().toURL()));
+				: new JarFileArchive(file));
 	}
 
 	@Override

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/archive/JarFileArchive.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -53,7 +53,7 @@ public class JarFileArchive implements Archive {
 	private File tempUnpackFolder;
 
 	public JarFileArchive(File file) throws IOException {
-		this(file, null);
+		this(file, file.toURI().toURL());
 	}
 
 	public JarFileArchive(File file, URL url) throws IOException {

spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/JarLauncherTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2019 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.

spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/PropertiesLauncherTests.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -176,7 +176,7 @@ public class PropertiesLauncherTests {
 				.isEqualTo("[jar:file:./src/test/resources/nested-jars/app.jar!/]");
 		List<Archive> archives = launcher.getClassPathArchives();
 		assertThat(archives).areExactly(1, endingWith("foo.jar!/"));
-		assertThat(archives).areExactly(1, endingWith("app.jar!/"));
+		assertThat(archives).areExactly(1, endingWith("app.jar"));
 	}
 
 	@Test
@@ -185,7 +185,7 @@ public class PropertiesLauncherTests {
 		PropertiesLauncher launcher = new PropertiesLauncher();
 		List<Archive> archives = launcher.getClassPathArchives();
 		assertThat(archives).areExactly(1, endingWith("foo.jar!/"));
-		assertThat(archives).areExactly(1, endingWith("app.jar!/"));
+		assertThat(archives).areExactly(1, endingWith("app.jar"));
 	}
 
 	@Test
@@ -204,7 +204,7 @@ public class PropertiesLauncherTests {
 		PropertiesLauncher launcher = new PropertiesLauncher();
 		List<Archive> archives = launcher.getClassPathArchives();
 		assertThat(archives).areExactly(1, endingWith("foo.jar!/"));
-		assertThat(archives).areExactly(1, endingWith("app.jar!/"));
+		assertThat(archives).areExactly(1, endingWith("app.jar"));
 	}
 
 	@Test

spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/WarLauncherTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2019 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.

spring-boot-project/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/archive/JarFileArchiveTests.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -84,7 +84,7 @@ public class JarFileArchiveTests {
 	@Test
 	public void getUrl() throws Exception {
 		URL url = this.archive.getUrl();
-		assertThat(url.toString()).isEqualTo("jar:" + this.rootJarFileUrl + "!/");
+		assertThat(url.toString()).isEqualTo(this.rootJarFileUrl);
 	}
 
 	@Test