Do you save the diagram in CompressedXml or Xml format?

This saves the diagram as a base64-encoded Java object stream. A base64 encoded binary diagram string always starts with "rO0A" characters, can you see them in the string you are getting the exception with?

If you are getting XML exceptions from loadFromString, that means either the string starts with a < symbol (which should not appear in a base64 sequence) and the diagram decides it's an XML document, or binary deserialization failed for some reason.

Binary serialization might fail if the string is somehow corrupted, or if the file contains objects from a class that is no longer available in your application.

Paste it into a text file and email the file to support@mindfusion.eu.

Yes,

The error is in the loadFromString function.

Remember the stack of the error :
com.mindfusion.diagramming.XmlException: com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceExceptio n: Invalid byte 1 of 1-byte UTF-8 sequence.

at com.mindfusion.diagramming.Diagram.a(Unknown Source)

at com.mindfusion.diagramming.Diagram.a(Unknown Source)

at com.mindfusion.diagramming.Diagram.loadFromString(Unknown Source)

at VegaGrapheVisu.creerGraphe(VegaGrapheVisu.java:137)

at VegaGrapheVisuDemo.main(VegaGrapheVisuDemo.java:63)


The diagram is based on a database request.
I can give you my classes which loaded the datas from flat files (nodes and links separated files) to reproduce the incident.
This sample allways generates the error.

Here is a sample code of the generation of the diagram

public String creerGraphe () {


String retour = "";



erreur = "";
// Code which creates the diagram
.....





retour = _flowChart.saveToString();


wf_trace ("Début graphe\r\n" + retour + "\r\nFin graphe", false);


close(false);


return retour;

}
 

And this is the code which calls the creerGraphe function in the visual class

public void creerGraphe () {


this.validate();


String valeur = graphe.creerGraphe();


if (valeur != null) _flowChart.loadFromString(valeur);


chargerComboTaches();


overview.update();

}
 

Regards

I have this error at every time. Not for all graphs. It can maybe come from my datas.

The graph is loaded in the same thread.
The loadFromString is done in the UI thread.

Do you want the code : only 5 classes, 2 flat files and a shl file ?

I have a strange phenomen. I have changed my code like this to avoid the repainting of the graphe :

public void creerGraphe () {


this.validate();


[color=Red]_flowChartView.suspendRepaint();[/color]

String valeur = graphe.creerGraphe();


if (valeur != null) _flowChart.loadFromString(valeur);
[color=Red]_flowChartView.resumeRepaint();[/color]

chargerComboTaches();


overview.update();

}
 

and now I have the error in the savetoString function :

Exception in thread "main" java.lang.StackOverflowError

at java.util.concurrent.ConcurrentHashMap$Segment.get(Unknown Source)

at java.util.concurrent.ConcurrentHashMap.get(Unknown Source)

at java.io.ObjectStreamClass.lookup(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.Serialization.writeTag(Unknown Source)

at com.mindfusion.diagramming.DiagramItem.writeExternal(Unknown Source)

at com.mindfusion.diagramming.DiagramNode.writeExternal(Unknown Source)

at com.mindfusion.diagramming.ShapeNode.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.ConnectionPoint.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.DiagramLink.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.BaseList.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.DiagramNode.writeExternal(Unknown Source)

at com.mindfusion.diagramming.ShapeNode.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.ConnectionPoint.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.DiagramLink.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at com.mindfusion.diagramming.BaseList.writeExternal(Unknown Source)

at java.io.ObjectOutputStream.writeExternalData(Unknown Source)

at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)
.........

Ok, so I modify my window to not call the Jdiagram function in the main event.

Now , the creerGraphe function which wall call in the main code of VegaGrapheVisuDemo class is not yet called.

I put this in a JButton of my window.
I still have the problem.

Regards