Getting User from User Picker, Jira 5.0.7?

[nuri akar]

Hallo,
I want to get value (user) of User Picker.
I'm using this script:

#set($StaffInvolvedField = $customFieldManager.getCustomFieldObject("customfield_10500"))
#set($StaffInvolvedValue = $issue.getCustomFieldValue($StaffInvolvedField))

This script gives me as result, com.atlassian.crowd.embedded.ofbiz.OfBizUser@391b8e5

I have already tried getdisplayName, displayName or Name methots but it did not work.

Version of Jira is 5.0.7

[RambanamP]

some utility code for diffrent fields, check this

#set( $issueCustomField = $issue.getCustomField( $customFieldKey ) )
#if ($issueCustomField)
#set( $issueFieldValue = $issue.getCustomFieldValue( $issueCustomField ) )
#if ($issueFieldValue)
$stringUtils.leftPad($issueCustomField.name, $padSize): #if ($customFieldType == "select")
$issueFieldValue.value
#elseif ($customFieldType == "multiselect")
#foreach ($entry in $issueFieldValue)$entry.value#if ($velocityCount != $issueFieldValue.size()), #end#end
 
#elseif ($customFieldType == "version")
#foreach ($entry in $issueFieldValue)
$entry.getString("name")#if ($velocityCount != $issueFieldValue.size()), #end
#end
 
#elseif ($customFieldType == "user")
$issueFieldValue.displayName
#elseif ($customFieldType == "multiuser")
#foreach ($entry in $issueFieldValue)$entry.displayName#if ($velocityCount != $issueFieldValue.size()), #end#end
 
#elseif ($customFieldType == "datetime")
$dateformatter.formatDMYHMS($issueFieldValue)
#elseif ($customFieldType == "date")
$dateformatter.formatDMY($issueFieldValue)
#else
$issueFieldValue
#end
#end
#end