Fix stupid NPE from DiagramViewerLoadJob

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / diagramEditor / DiagramViewerLoadJob.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewerLoadJob.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewerLoadJob.java
index 62b1d028f8db6fb2004e8222010e04e29febe9e2..dc9d9d1bef72f88c590167b14acc666edf33d19b 100644 (file)
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewerLoadJob.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewerLoadJob.java
@@ -24,9 +24,13 @@ import org.simantics.g2d.diagram.IDiagram;
 import org.simantics.modeling.ui.Activator;
 import org.simantics.utils.DataContainer;
 import org.simantics.utils.threads.ThreadUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class DiagramViewerLoadJob extends DatabaseJob {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(DiagramViewerLoadJob.class);
+
     private static final boolean PROFILE = false;
     private DiagramViewer        viewer;
 
@@ -107,6 +111,7 @@ public class DiagramViewerLoadJob extends DatabaseJob {
                         });
                         END(task);
                     } catch (Throwable t) {
+                        LOGGER.error("Failed to complete loading of diagram {} in the canvas thread", viewer.diagramResource, t);
                         viewer = null;
                     }
                 }