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8213406: (fs) More than one instance of built-in FileSystem observed in heap

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Reviewed-by: alanb, cushon, weijun
This commit is contained in:
Martin Buchholz 2018-11-28 14:28:28 -08:00
parent 978c78f7fc
commit 7212bf0a77
14 changed files with 106 additions and 53 deletions
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20
src/java.base/linux/classes/sun/nio/fs/DefaultFileSystemProvider.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -25,19 +25,29 @@
package sun.nio.fs;
import java.nio.file.spi.FileSystemProvider;
import java.nio.file.FileSystem;
/**
* Creates this platform's default FileSystemProvider.
*/
public class DefaultFileSystemProvider {
private static final LinuxFileSystemProvider INSTANCE
= new LinuxFileSystemProvider();
private DefaultFileSystemProvider() { }
/**
* Returns the default FileSystemProvider.
* Returns the platform's default file system provider.
*/
public static FileSystemProvider create() {
return new LinuxFileSystemProvider();
public static LinuxFileSystemProvider instance() {
return INSTANCE;
}
/**
* Returns the platform's default file system.
*/
public static FileSystem theFileSystem() {
return INSTANCE.theFileSystem();
}
}

2
src/java.base/linux/classes/sun/nio/fs/LinuxFileSystemProvider.java
View file

@ -36,7 +36,7 @@ import jdk.internal.util.StaticProperty;
* Linux implementation of FileSystemProvider
*/
public class LinuxFileSystemProvider extends UnixFileSystemProvider {
class LinuxFileSystemProvider extends UnixFileSystemProvider {
public LinuxFileSystemProvider() {
super();
}