Annotations fix

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/editors/sql/SQLEditor.java

@@ -1888,7 +1888,7 @@ public class SQLEditor extends SQLEditorBase implements
             return getDataSourceContainer();
         }
 
-        @NotNull
+        @Nullable
         @Override
         public DBPDataSource getDataSource()
         {

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/struct/DBSDataContainer.java

@@ -19,6 +19,7 @@ package org.jkiss.dbeaver.model.struct;
 
 import org.jkiss.code.NotNull;
 import org.jkiss.code.Nullable;
+import org.jkiss.dbeaver.model.DBPDataSource;
 import org.jkiss.dbeaver.model.data.DBDDataFilter;
 import org.jkiss.dbeaver.model.data.DBDDataReceiver;
 import org.jkiss.dbeaver.model.exec.DBCException;
@@ -41,6 +42,9 @@ public interface DBSDataContainer extends DBSObject {
     long FLAG_NONE               = 0;
     long FLAG_READ_PSEUDO        = 1 << 1;
 
+    @Nullable
+    DBPDataSource getDataSource();
+
     /**
      * Features supported by implementation
      * @return features flags