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8194154: System property user.dir should not be changed

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Cached user.dir so getCanonicalPath uses the cached value.

Reviewed-by: alanb, bpb, rriggs
This commit is contained in:
Yumin Qi 2018-02-21 14:23:45 -08:00
parent 4b6ab35c85
commit 4ea684bf31
3 changed files with 67 additions and 4 deletions
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10
src/java.base/windows/classes/java/io/WinNTFileSystem.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 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
@ -43,12 +43,14 @@ class WinNTFileSystem extends FileSystem {
private final char slash;
private final char altSlash;
private final char semicolon;
private final String userDir;
public WinNTFileSystem() {
Properties props = GetPropertyAction.privilegedGetProperties();
slash = props.getProperty("file.separator").charAt(0);
semicolon = props.getProperty("path.separator").charAt(0);
altSlash = (this.slash == '\\') ? '/' : '\\';
userDir = props.getProperty("user.dir");
}
private boolean isSlash(char c) {
@ -347,7 +349,11 @@ class WinNTFileSystem extends FileSystem {
private String getUserPath() {
/* For both compatibility and security,
we must look this up every time */
return normalize(System.getProperty("user.dir"));
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPropertyAccess("user.dir");
}
return normalize(userDir);
}
private String getDrive(String path) {