remove null check

application/src/main/java/org/thingsboard/server/actors/calculatedField/CalculatedFieldEntityMessageProcessor.java

@@ -416,7 +416,7 @@ public class CalculatedFieldEntityMessageProcessor extends AbstractContextAwareM
                 }
             } else {
                 if (DebugModeUtil.isDebugFailuresAvailable(ctx.getCalculatedField())) {
-                    String errorMsg = ctx.isInitialized() && state.getReadinessStatus() != null ? state.getReadinessStatus().stringValue() : "Calculated field state is not initialized!";
+                    String errorMsg = ctx.isInitialized() ? state.getReadinessStatus().stringValue() : "Calculated field state is not initialized!";
                     systemContext.persistCalculatedFieldDebugEvent(tenantId, ctx.getCfId(), entityId, state.getArguments(), tbMsgId, tbMsgType, null,  errorMsg);
                 }
                 callback.onSuccess();

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/BaseCalculatedFieldState.java

@@ -112,7 +112,7 @@ public abstract class BaseCalculatedFieldState implements CalculatedFieldState,
 
     @Override
     public boolean isReady() {
-        return readinessStatus != null && readinessStatus.isReady();
+        return readinessStatus.isReady();
     }
 
     @Override