diff options
Diffstat (limited to 'luni/src/main/java/java/io/File.java')
| -rw-r--r-- | luni/src/main/java/java/io/File.java | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/luni/src/main/java/java/io/File.java b/luni/src/main/java/java/io/File.java index d107c28..0592345 100644 --- a/luni/src/main/java/java/io/File.java +++ b/luni/src/main/java/java/io/File.java @@ -57,12 +57,6 @@ public class File implements Serializable, Comparable<File> { private static final long serialVersionUID = 301077366599181567L; /** - * Reusing a Random makes temporary filenames slightly harder to predict. - * (Random is thread-safe.) - */ - private static final Random tempFileRandom = new Random(); - - /** * The system-dependent character used to separate components in filenames ('/'). * Use of this (rather than hard-coding '/') helps portability to other operating systems. * @@ -129,6 +123,8 @@ public class File implements Serializable, Comparable<File> { * * @param path * the path to be used for the file. + * @throws NullPointerException + * if {@code path} is {@code null}. */ public File(String path) { this.path = fixSlashes(path); @@ -167,6 +163,8 @@ public class File implements Serializable, Comparable<File> { * @param uri * the Unified Resource Identifier that is used to construct this * file. + * @throws NullPointerException + * if {@code uri == null}. * @throws IllegalArgumentException * if {@code uri} does not comply with the conditions above. * @see #toURI @@ -1002,7 +1000,7 @@ public class File implements Serializable, Comparable<File> { } File result; do { - result = new File(tmpDirFile, prefix + tempFileRandom.nextInt() + suffix); + result = new File(tmpDirFile, prefix + Math.randomIntInternal() + suffix); } while (!result.createNewFile()); return result; } |