Add retry loop for FilePath#chmod

Author: strangelookingnerd

core/src/main/java/hudson/FilePath.java

@@ -716,8 +716,19 @@ private static void unzip(File dir, File zipFile) throws IOException {
                     try {
                         FilePath target = new FilePath(f);
                         int mode = e.getUnixMode();
-                        if (mode != 0)    // Ant returns 0 if the archive doesn't record the access mode
-                            target.chmod(mode);
+                        if (mode != 0) { // Ant returns 0 if the archive doesn't record the access mode
+                            for (int attempt = 1; ; attempt++) {
+                                try {
+                                    target.chmod(mode);
+                                    break;
+                                } catch (NoSuchFileException ex) { // https://issues.jenkins.io/browse/JENKINS-76192
+                                    if (attempt == 3) {
+                                        throw ex;
+                                    }
+                                    Thread.sleep(420);
+                                }
+                            }
+                        }
                     } catch (InterruptedException ex) {
                         LOGGER.log(Level.WARNING, "unable to set permissions", ex);
                     }