diff --git a/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java b/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
index fc948372407e..61de784b38e5 100644
--- a/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
+++ b/platform/lang-impl/src/com/intellij/execution/impl/ConsoleViewImpl.java
@@ -120,7 +120,7 @@ public class ConsoleViewImpl extends JPanel implements ConsoleView, ObservableCo
   private ConsoleState myState;
 
   private final Alarm mySpareTimeAlarm = new Alarm(this);
-  @Nullable
+  @NotNull
   private final Alarm myHeavyAlarm;
   private volatile int myHeavyUpdateTicket;
 
@@ -288,7 +288,7 @@ public class ConsoleViewImpl extends JPanel implements ConsoleView, ObservableCo
     myFilters = new CompositeFilter(project, usePredefinedMessageFilter ? computeConsoleFilters(project, searchScope) : new SmartList<>());
     myFilters.setForceUseAllFilters(true);
     myHeavyUpdateTicket = 0;
-    myHeavyAlarm = myFilters.isAnyHeavy() ? new Alarm(Alarm.ThreadToUse.POOLED_THREAD, this) : null;
+    myHeavyAlarm = new Alarm(Alarm.ThreadToUse.POOLED_THREAD, this);
 
     ConsoleInputFilterProvider[] inputFilters = Extensions.getExtensions(ConsoleInputFilterProvider.INPUT_FILTER_PROVIDERS);
     if (inputFilters.length > 0) {
@@ -786,7 +786,7 @@ public class ConsoleViewImpl extends JPanel implements ConsoleView, ObservableCo
   }
 
   private void cancelHeavyAlarm() {
-    if (myHeavyAlarm != null && !myHeavyAlarm.isDisposed()) {
+    if (!myHeavyAlarm.isDisposed()) {
       myHeavyAlarm.cancelAllRequests();
       ++myHeavyUpdateTicket;
     }
@@ -1013,7 +1013,6 @@ public class ConsoleViewImpl extends JPanel implements ConsoleView, ObservableCo
 
     myJLayeredPane.startUpdating();
     final int currentValue = myHeavyUpdateTicket;
-    assert myHeavyAlarm != null;
     myHeavyAlarm.addRequest(new Runnable() {
       @Override
       public void run() {