diff --git a/platform/core-impl/src/com/intellij/psi/impl/PsiDocumentManagerBase.java b/platform/core-impl/src/com/intellij/psi/impl/PsiDocumentManagerBase.java
index b8dcc1e62613..4d6df92209a2 100644
--- a/platform/core-impl/src/com/intellij/psi/impl/PsiDocumentManagerBase.java
+++ b/platform/core-impl/src/com/intellij/psi/impl/PsiDocumentManagerBase.java
@@ -131,7 +131,7 @@ public abstract class PsiDocumentManagerBase extends PsiDocumentManager implemen
   // todo remove when Database Navigator plugin doesn't need that anymore
   // todo to be removed in idea 17
   public static void cachePsi(@NotNull Document document, @Nullable PsiFile file) {
-    LOG.warn("Unsupported method");
+    LOG.warn("Unsupported method", new Throwable());
   }
 
   public void associatePsi(@NotNull Document document, @Nullable PsiFile file) {