diff --git a/java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointManager.java b/java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointManager.java
index e260a8b6d000..e45060147ade 100644
--- a/java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointManager.java
+++ b/java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointManager.java
@@ -398,7 +398,9 @@ public class BreakpointManager {
         }
       }
 
-      DebuggerInvocationUtil.invokeLater(myProject, this::updateBreakpointsUI);
+      if (!myProject.isDefault()) {
+        DebuggerInvocationUtil.invokeLater(myProject, this::updateBreakpointsUI);
+      }
     });
 
     myUIProperties.clear();