Merge branch '1.5.x'

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

@@ -95,7 +95,7 @@ public class TestJarFile {
 	}
 
 	private void copy(InputStream in, OutputStream out) throws IOException {
-		int bytesRead = -1;
+		int bytesRead;
 		while ((bytesRead = in.read(this.buffer)) != -1) {
 			out.write(this.buffer, 0, bytesRead);
 		}