chore: add call thread debug logging (#15294) (#15302)

Add debug logging for incrementing server id to be able to see what is calling it during runtime. Targets #14797 Co-authored-by: caalador <[email protected]>
vaadin · Nov 28, 2022 · 4d60389 · 4d60389
1 parent 257a2ca
commit 4d60389
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/flow-server/src/main/java/com/vaadin/flow/component/internal/UIInternals.java b/flow-server/src/main/java/com/vaadin/flow/component/internal/UIInternals.java
@@ -18,6 +18,7 @@
 import java.io.Serializable;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -78,6 +79,7 @@
 import com.vaadin.flow.server.frontend.FallbackChunk.CssImportData;
 import com.vaadin.flow.shared.Registration;
 import com.vaadin.flow.shared.communication.PushMode;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -316,6 +318,12 @@ public int getServerSyncId() {
      */
     public void incrementServerId() {
         serverSyncId++;
+        if (getLogger().isDebugEnabled()) {
+            getLogger().debug("Increment syncId:\n{}", Arrays
+                    .stream(Thread.currentThread().getStackTrace()).skip(1)
+                    .map(String::valueOf)
+                    .collect(Collectors.joining(System.lineSeparator())));
+        }
     }
 
     /**
@@ -325,10 +333,9 @@ public void incrementServerId() {
      * should be taken since this method might be called in situations where
      * {@link UI#getCurrent()} does not return the UI.
      *
-     * @see VaadinService#closeInactiveUIs(VaadinSession)
-     *
      * @return The time the last heartbeat request occurred, in milliseconds
      *         since the epoch.
+     * @see VaadinService#closeInactiveUIs(VaadinSession)
      */
     public long getLastHeartbeatTimestamp() {
         return lastHeartbeatTimestamp;
@@ -389,10 +396,8 @@ private static String getSessionDetails(VaadinSession session) {
      *
      * @param session
      *            the session to set
-     *
      * @throws IllegalStateException
      *             if the session has already been set
-     *
      * @see #getSession()
      */
     public void setSession(VaadinSession session) {