fix for strange NPE

java.lang.NullPointerException
        at
net.yacy.search.Switchboard.updateMySeed(Switchboard.java:3667)
        at net.yacy.peers.Network.peerPing(Network.java:195)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at
net.yacy.kelondro.workflow.InstantBusyThread.job(InstantBusyThread.java:107)
        at
net.yacy.kelondro.workflow.AbstractBusyThread.run(AbstractBusyThread.java:165)

source/net/yacy/search/Switchboard.java

@@ -3664,7 +3664,7 @@ public final class Switchboard extends serverSwitch {
         mySeed.put(Seed.UTC, GenericFormatter.UTCDiffString());
         mySeed.setFlagAcceptRemoteCrawl(getConfigBool("crawlResponse", true));
         mySeed.setFlagAcceptRemoteIndex(getConfigBool("allowReceiveIndex", true));
-        mySeed.setFlagSSLAvailable(this.getHttpServer().withSSL() && getConfigBool("server.https", false));
+        mySeed.setFlagSSLAvailable(this.getHttpServer() != null && this.getHttpServer().withSSL() && getConfigBool("server.https", false));
     }
 
     public void loadSeedLists() {