Github user rakeshadr commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/236#discussion_r117285488
--- Diff:
src/java/main/org/apache/zookeeper/server/upgrade/UpgradeMain.java ---
@@ -113,16 +113,18 @@ private void createAllDirs() throws IOException {
* @throws IOException
*/
void copyFiles(File srcDir, File dstDir, String filter) throws
IOException {
- File[] list = srcDir.listFiles();
- for (File file: list) {
- String name = file.getName();
- if (name.startsWith(filter)) {
- // we need to copy this file
- File dest = new File(dstDir, name);
- LOG.info("Renaming " + file + " to " + dest);
- if (!file.renameTo(dest)) {
- throw new IOException("Unable to rename "
- + file + " to " + dest);
+ File[] list;
+ if ((list = srcDir.listFiles()) != null) {
--- End diff --
Please keep var assignment `(list = srcDir.listFiles())` along with the
object reference.
`File[] list = srcDir.listFiles();`
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