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@@ -528,7 +528,7 @@ public class ShowUsagesAction extends AnAction {
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}
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public int getColumnCount() {
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return data.get(0) instanceof UsageNode ? 3 : 1;
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return !data.isEmpty() && data.get(0) instanceof UsageNode ? 3 : 1;
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}
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public Object getValueAt(int rowIndex, int columnIndex) {
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