NotesXSPDocument - Inserting a boolean breaks getDocument - xpages

Question

I have an XPage which has just broken due to (what should have been) a small change.
If I run (where document1 is NotesXSPDocument datasource) :
document1.replaceItem("ItemName", false); //or true, or any variable/formula that results in a boolean
followed by:
document1.getDocument(true);
I end up with an error
[TypeError] Exception occurred calling method NotesXspDocument.getDocument(boolean) null
This is on a new document (so not saved yet, which I've not tested, but might make a difference), hence I can't just set the field on the underlying doc.
It doesn't seem to be an artifact of anything else in the page, as a basic test page confirms it. It doesn't happen with anything (I've found) other than a boolean.
Any advice, other than just change the data type? I guess that's what I'll end up doing (along with a bug report) but I'd like to know I'm not missing something first.
Thanks
------------Test XSP code------------
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core"><xp:this.data>
<xp:dominoDocument var="document1" formName="Test" />
</xp:this.data><xp:span style="font-weight:bold">
Button 1 code:</xp:span><xp:br></xp:br>document1.replaceItemValue("Test",false);
<xp:br></xp:br>var doc:NotesDocument = document1.getDocument(true);
<xp:br></xp:br>print(doc.toString());<xp:br></xp:br>
<xp:button value="Test 1" id="button1">
<xp:eventHandler event="onclick" submit="true"
refreshMode="complete">
<xp:this.action><![CDATA[#{javascript:document1.replaceItemValue("Test",false);
var doc:NotesDocument = document1.getDocument(true);
print(doc.toString());}]]></xp:this.action>
</xp:eventHandler></xp:button>
<xp:br></xp:br>
<xp:br></xp:br>
<xp:br></xp:br>
<xp:br></xp:br><xp:span style="font-weight:bold">
Button</xp:span><xp:span style="font-weight:bold"> 2</xp:span><xp:span style="font-weight:bold"> Code:</xp:span><xp:span style="font-weight:bold"></xp:span> <xp:br></xp:br>document1.replaceItemValue("Test","Test);<xp:br></xp:br>var doc:NotesDocument = document1.getDocument(true);
<xp:br></xp:br>print(doc.toString());<xp:br></xp:br><xp:button value="Test 2" id="button2">
<xp:eventHandler event="onclick" submit="true"
refreshMode="complete">
<xp:this.action><![CDATA[#{javascript:document1.replaceItemValue("Test","Test");
var doc:NotesDocument = document1.getDocument(true);
print(doc.toString());}]]></xp:this.action>
</xp:eventHandler></xp:button></xp:view>

Answer 1

If you have a look in the stack trace you will see the following:
....
NotesException: Unknown or unsupported object type in Vector
lotus.domino.local.Document.NreplaceItemValue(Native Method)
lotus.domino.local.Document.replaceItemValue(Unknown Source)
com.ibm.xsp.model.domino.wrapped.DominoDocument.applyChangesToDoc(DominoDocument.java:1698)
com.ibm.xsp.model.domino.wrapped.DominoDocument.applyChanges(DominoDocument.java:1649)
com.ibm.xsp.model.domino.wrapped.DominoDocument.getDocument(DominoDocument.java:544)
com.ibm.xsp.script.WrapperDominoEx$fct_DominoDocument.call(WrapperDominoEx.java:254)
....
The problem is that you use the replaceItemValue method with an unsupported data type.
Here is a list of all allowed data types:
String Text
Integer Number
Double Number
DateTime Date-time item
java.util.Vector with String, Integer, Double, or DateTime elements Multi-value text, number, or date-time item
Item Same data type as the Item
The error is raised in the moment the backend document is synchronized with the datasource document. That's why it fails while calling document1.getDocument(true).
Hope this helps
Sven
EDIT:
Why are you setting the value to false?