NPE fix

11 years ago · d4b5c457e4
parent 36a66b0704
commit d4b5c457e4
1 changed files with 1 additions and 1 deletions
--- a/source/net/yacy/crawler/data/CrawlQueues.java
+++ b/source/net/yacy/crawler/data/CrawlQueues.java
@ -126,7 +126,7 @@ public class CrawlQueues {
    public void clear() {
        // wait for all workers to finish
        this.workerQueue.clear();
-        for (final Loader w: this.worker) w.interrupt();
+        for (final Loader w: this.worker) if (w != null) w.interrupt();
        this.remoteCrawlProviderHashes.clear();
        this.noticeURL.clear();
        this.delegatedURL.clear();