8194154: System property user.dir should not be changed

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

View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 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
@ -34,12 +34,14 @@ class UnixFileSystem extends FileSystem {
private final char slash;
private final char colon;
private final String javaHome;
private final String userDir;
public UnixFileSystem() {
Properties props = GetPropertyAction.privilegedGetProperties();
slash = props.getProperty("file.separator").charAt(0);
colon = props.getProperty("path.separator").charAt(0);
javaHome = props.getProperty("java.home");
userDir = props.getProperty("user.dir");
}
@ -128,7 +130,11 @@ class UnixFileSystem extends FileSystem {
public String resolve(File f) {
if (isAbsolute(f)) return f.getPath();
return resolve(System.getProperty("user.dir"), f.getPath());
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPropertyAccess("user.dir");
}
return resolve(userDir, f.getPath());
}
// Caches for canonicalization results to improve startup performance.