Don't try to fetch subscriptions, news, or plugin updates while in VM Comm system

apps/addressbook/java/src/net/i2p/addressbook/SubscriptionIterator.java

@@ -76,7 +76,8 @@ class SubscriptionIterator implements Iterator<AddressBook> {
     public AddressBook next() {
         Subscription sub = this.subIterator.next();
         if (sub.getLastFetched() + this.delay < I2PAppContext.getGlobalContext().clock().now() &&
-            I2PAppContext.getGlobalContext().portMapper().getPort(PortMapper.SVC_HTTP_PROXY) >= 0) {
+            I2PAppContext.getGlobalContext().portMapper().getPort(PortMapper.SVC_HTTP_PROXY) >= 0 &&
+            !I2PAppContext.getGlobalContext().getBooleanProperty("i2p.vmCommSystem")) {
             //System.err.println("Fetching addressbook from " + sub.getLocation());
             return new AddressBook(sub, this.proxyHost, this.proxyPort);
         } else {

apps/routerconsole/java/src/net/i2p/router/update/NewsFetcher.java

@@ -99,6 +99,11 @@ class NewsFetcher extends UpdateRunner {
                 _log.warn("Cannot fetch news - HTTP client tunnel not running");
             return;
         }
+        if (shouldProxy && _context.commSystem().isDummy()) {
+            if (_log.shouldWarn())
+                _log.warn("Cannot fetch news - VM Comm system");
+            return;
+        }
 
         for (URI uri : _urls) {
             _currentURI = addLang(uri);

apps/routerconsole/java/src/net/i2p/router/web/PluginStarter.java

@@ -157,6 +157,12 @@ public class PluginStarter implements Runnable {
                                      Messages.getString("HTTP client proxy tunnel must be running", ctx));
             return;
         }
+        if (ctx.commSystem().isDummy()) {
+            mgr.notifyComplete(null, Messages.getString("Plugin update check failed", ctx) +
+                                     " - " +
+                                     "VM Comm System");
+            return;
+        }
 
         Log log = ctx.logManager().getLog(PluginStarter.class);
         int updated = 0;