Ensure that LaunchedURLClassLoader works when thread is interrupted

See gh-6683

spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/data/RandomAccessDataFile.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2013 the original author or authors.
+ * Copyright 2012-2016 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.
@@ -244,17 +244,10 @@ public class RandomAccessDataFile implements RandomAccessData {
 		}
 
 		public RandomAccessFile acquire() throws IOException {
-			try {
+			this.available.acquireUninterruptibly();
-				this.available.acquire();
 			RandomAccessFile file = this.files.poll();
 			return (file == null
-						? new RandomAccessFile(RandomAccessDataFile.this.file, "r")
+					? new RandomAccessFile(RandomAccessDataFile.this.file, "r") : file);
-						: file);
-			}
-			catch (InterruptedException ex) {
-				Thread.currentThread().interrupt();
-				throw new IOException(ex);
-			}
 		}
 
 		public void release(RandomAccessFile file) {
@@ -263,8 +256,7 @@ public class RandomAccessDataFile implements RandomAccessData {
 		}
 
 		public void close() throws IOException {
-			try {
+			this.available.acquireUninterruptibly(this.size);
-				this.available.acquire(this.size);
 			try {
 				RandomAccessFile file = this.files.poll();
 				while (file != null) {
@@ -276,11 +268,6 @@ public class RandomAccessDataFile implements RandomAccessData {
 				this.available.release(this.size);
 			}
 		}
-			catch (InterruptedException ex) {
-				Thread.currentThread().interrupt();
-				throw new IOException(ex);
-			}
-		}
 
 	}