IGNITE-28479 Fix Logging at INFO level without checking during GridCollisionManager start (#12989)

Author: zstan

modules/core/src/main/java/org/apache/ignite/internal/managers/collision/GridCollisionManager.java

@@ -58,8 +58,10 @@ public GridCollisionManager(GridKernalContext ctx) {
                 }
             });
         }
-        else
-            log.info("Collision resolution is disabled (all jobs will be activated upon arrival).");
+        else {
+            if (log.isInfoEnabled())
+                log.info("Collision resolution is disabled (all jobs will be activated upon arrival).");
+        }
 
         if (log.isDebugEnabled())
             log.debug(startInfo());

modules/core/src/test/java/org/apache/ignite/internal/GridCollisionManagerLoggingSelfTest.java

@@ -28,6 +28,7 @@
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 /**
  * Tests for making sure that {@link GridCollisionManager} logs about specific conditions at correct levels,
@@ -56,9 +57,17 @@ public void initLoggerMock() {
     public void collisionResolutionDisabledMessageShouldBeLoggedAtInfoLevel() throws Exception {
         GridCollisionManager mgr = new GridCollisionManager(collisionResolutionDisabledContext());
 
-        mgr.start();
+        boolean infoLevel = logger.isInfoEnabled();
+        when(logger.isInfoEnabled()).thenReturn(true);
 
-        verify(logger).info("Collision resolution is disabled (all jobs will be activated upon arrival).");
+        try {
+            mgr.start();
+
+            verify(logger).info("Collision resolution is disabled (all jobs will be activated upon arrival).");
+        }
+        finally {
+            when(logger.isInfoEnabled()).thenReturn(infoLevel);
+        }
     }
 
     /**