Merge branch '2.5.x'

Closes gh-28263

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/socket/FileDescriptor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -44,11 +44,6 @@ class FileDescriptor {
 		this.closer = closer;
 	}
 
-	@Override
-	protected void finalize() throws Throwable {
-		close();
-	}
-
 	/**
 	 * Acquire an instance of the actual {@link Handle}. The caller must
 	 * {@link Handle#close() close} the resulting handle when done.