fix for https://github.com/yacy/yacy_search_server/issues/385

htroot/api/status_p.java

@@ -34,6 +34,7 @@ import net.yacy.crawler.data.CrawlProfile;
 import net.yacy.kelondro.index.RowHandleSet;
 import net.yacy.kelondro.io.ByteCount;
 import net.yacy.kelondro.util.MemoryControl;
+import net.yacy.kelondro.workflow.BusyThread;
 import net.yacy.kelondro.workflow.WorkflowProcessor;
 import net.yacy.search.Switchboard;
 import net.yacy.search.SwitchboardConstants;
@@ -97,7 +98,8 @@ public class status_p {
         prop.putNum("loaderMax", sb.getConfigLong(SwitchboardConstants.CRAWLER_THREADS_ACTIVE_MAX, 10));
 
         //local crawl queue
-        prop.putNum("localCrawlSize", sb.getThread(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL).getJobCount());
+        BusyThread localCrawl = sb.getThread(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL);
+        prop.putNum("localCrawlSize", localCrawl == null ? 0 : localCrawl.getJobCount());
         prop.put("localCrawlState", sb.crawlJobIsPaused(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL) ? STATE_PAUSED : STATE_RUNNING);
 
         //global crawl queue
@@ -105,7 +107,8 @@ public class status_p {
         prop.put("limitCrawlState", STATE_RUNNING);
 
         //remote crawl queue
-        prop.putNum("remoteCrawlSize", sb.getThread(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL) != null ? sb.getThread(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL).getJobCount() : 0);
+        BusyThread remoteCrawl = sb.getThread(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
+        prop.putNum("remoteCrawlSize", remoteCrawl == null ? 0 : remoteCrawl.getJobCount());
         prop.put("remoteCrawlState", sb.crawlJobIsPaused(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL) ? STATE_PAUSED : STATE_RUNNING);
 
         //noload crawl queue