Hi Mario, I'm not sure where the default error page is stored, but I've made a custom error page that will give you a starting point at least. Just copy the code into the source of an XPage and set the Error page in the Application Properties to that page.
<?xml version="1.0" encoding="UTF-8"?>
<xp:view
xmlns:xp="http://www.ibm.com/xsp/core"
>
<xp:div>
<xp:table>
<xp:tr>
<xp:td>
<xp:label
id="label1"
value="We're sorry, there has been an error..."
style="font-size:12pt;font-weight:bold" />
</xp:td>
</xp:tr>
</xp:table>
<xp:br />
<xp:section
id="section2"
header="Error Details"
type="box"
>
<xp:br />
<xp:table>
<xp:tr>
<xp:td>
<xp:label
id="label9"
style="font-weight:bold;text-decoration:underline"
value="Error source" />
</xp:td>
</xp:tr>
</xp:table>
<xp:table>
<xp:tr>
<xp:td>
<xp:label
value="Browser Version:"
id="label2"
style="font-weight:bold" />
</xp:td>
<xp:td>
<xp:label
id="BrowserVersion"
>
<xp:this.value><![CDATA[#{javascript:var br = context.getUserAgent().getBrowser();
var bv = context.getUserAgent().getBrowserVersion();
@UpperCase(br)+" "+bv}]]></xp:this.value>
</xp:label></xp:td>
</xp:tr>
<xp:tr>
<xp:td>
<xp:label
value="Control Id:"
id="label3"
style="font-weight:bold" />
</xp:td>
<xp:td>
<xp:text
escape="false"
id="ControlError"
>
<xp:this.value><![CDATA[#{javascript:/*/code for control (button click etc.)
if(error instanceof com.ibm.xsp.exception.XSPExceptionInfo === false) {
var msg = requestScope.error.getCause();
return msg.getErrorComponentId();
}
//code for event (onClientLoad etc.)
else if (error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true) {
return error.getErrorComponentId();
}
else {
""
}
*/
error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true ? error.getErrorComponentId() : requestScope.error.getCause().getErrorComponentId();}]]></xp:this.value>
</xp:text>
</xp:td>
</xp:tr>
<xp:tr>
<xp:td>
<xp:label
value="Property:"
id="label4"
style="font-weight:bold" />
</xp:td>
<xp:td>
<xp:text
escape="false"
id="PropertyError"
>
<xp:this.value><![CDATA[#{javascript://code for control (button click etc.)
if(error instanceof com.ibm.xsp.exception.XSPExceptionInfo === false) {
var msg = requestScope.error.getCause();
return msg.getErrorPropertyId();
}
//code for event (onClientLoad etc.)
else if (error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true) {
return error.getErrorPropertyId();
}
else {
""
}}]]></xp:this.value>
</xp:text>
</xp:td>
</xp:tr>
<xp:tr>
<xp:td>
<xp:label
value="Cause:"
id="label21"
style="font-weight:bold" />
</xp:td>
<xp:td>
<xp:text
escape="false"
id="Cause"
>
<xp:this.value><![CDATA[#{javascript://code for control (button click etc.)
if(error instanceof com.ibm.xsp.exception.XSPExceptionInfo === false) {
var myerror:com.ibm.xsp.exception.EvaluationExceptionEx = requestScope.error;
return myerror.getCause().getMessage();
}
//code for event (onClientLoad etc.)
else if (error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true) {
var myerror:com.ibm.xsp.exception.EvaluationExceptionEx = requestScope.error;
return myerror.getCause().getMessage();
}
else {
""
}}]]></xp:this.value>
</xp:text>
</xp:td>
</xp:tr>
</xp:table>
<xp:br />
<xp:table>
<xp:tr>
<xp:td>
<xp:label
id="label8"
style="font-weight:bold;text-decoration:underline"
value="Exception" />
</xp:td>
</xp:tr>
</xp:table>
<xp:table>
<xp:tr>
<xp:td>
<xp:text
escape="false"
id="ErrorMessage"
>
<xp:this.value><![CDATA[#{javascript://code for control (button click etc.)
if(error instanceof com.ibm.xsp.exception.XSPExceptionInfo === false) {
//var msg = requestScope.error.getCause();
return requestScope.error.getMessage();
}
//code for event (onClientLoad etc.)
else if (error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true) {
return error.getMessage();
}
else {
""
}}]]></xp:this.value>
</xp:text>
</xp:td>
<xp:td />
</xp:tr>
<xp:tr>
<xp:td>
<xp:text
escape="false"
id="ErrorText"
>
<xp:this.value><![CDATA[#{javascript://code for control (button click etc.)
if(error instanceof com.ibm.xsp.exception.XSPExceptionInfo === false) {
//var msg = requestScope.error.getCause();
//return msg.error.getErrorText();
return "unknown..."
}
//code for event (onClientLoad etc.)
else if (error instanceof com.ibm.xsp.exception.XSPExceptionInfo === true) {
return error.getErrorText();
}
else {
""
}}]]></xp:this.value>
</xp:text>
</xp:td>
<xp:td />
</xp:tr>
</xp:table>
<xp:br />
<xp:br />
<xp:table>
<xp:tr>
<xp:td>
<xp:label
id="label7"
style="font-weight:bold"
value="Stack Trace:" />
</xp:td>
<xp:td />
</xp:tr>
<xp:tr>
<xp:td colspan="2">
<xp:text
escape="false"
id="computedField2">
<xp:this.value><![CDATA[#{javascript:if (requestScope.error !== null) {
var stackTrace = "";
var trace = requestScope.error.getStackTrace();
for(var i = 0; i < trace.length; i++){
stackTrace += trace[i]+ "<br />";
}
return stackTrace;
}}]]></xp:this.value>
</xp:text>
</xp:td>
</xp:tr>
</xp:table>
</xp:section>
</xp:div>
</xp:view>