[richfaces-issues] [JBoss JIRA] (RF-11882) a4j jsFunction cannot transform java class to json in the getData method call

[Brian Leathem (JIRA)]

    [ https://issues.jboss.org/browse/RF-11882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12666476#comment-12666476 ] 

Brian Leathem commented on RF-11882:
------------------------------------

Dirk Dollar,

Without the associated facelet page, we are unable to reproduce this error.
                
> a4j jsFunction cannot transform java class to json in the getData method call
> -----------------------------------------------------------------------------
>
>                 Key: RF-11882
>                 URL: https://issues.jboss.org/browse/RF-11882
>             Project: RichFaces
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.1.0.Final
>            Reporter: Dirk Dollar
>            Priority: Minor
>              Labels: waiting_on_user
>
> I get a 
> FATAL:
> {code}
> ...javax.faces.FacesException: Error in conversion Java Object to JavaScript
> 	at org.ajax4jsf.javascript.ScriptUtils.appendScript(ScriptUtils.java:194) [:4.1.0.Final]
> 	at org.ajax4jsf.javascript.ScriptUtils.appendScript(ScriptUtils.java:123) [:4.1.0.Final]
> ....
> Caused by: java.lang.IllegalAccessException: Class org.ajax4jsf.javascript.PropertyUtils can not access a member of class java.util.HashMap$Entry with modifiers "public final"
> {code}
> Which wasn't there in richfaces 3.3.3
> The code snippet:
> {code}
> class MyBean{
> public String actionMethod(){
> ....do something which creates a Map <String,String> data, now I want to sort it before I return it:
> 	private List<Entry<String, String>> sortDataIntoList(Map<String, String> data) {
> 			List<Entry<String, String>> sortedList = new ArrayList<Entry<String, String>>(data.entrySet());
> 			Collections.sort(sortedList, new Comparator<Entry<String, String>>() {
> 				public int compare(Entry<String, String> f1, Entry<String, String> f2) {
> 					return f1.getValue().compareTo(f2.getValue());
> 				}
> 			});
> 			if(sortedList.size()>max)
> 				return sortedList.subList(0, max);
> 			return sortedList;
> 	}
> ...and return it from...
> public static MyInnerClass{
>   List<Entry<String,String>> data
>  public MyInnerClass(List<Entry<String,String>> data){
> this.data=data
> }
> public   List<Entry<String,String>> getData(){
> return data;}
> }
> }
> {code}
> results in the mentioned error
> A possible workaround is to use one's own implementation of a key value object e.g. something like 
> http://stackoverflow.com/questions/521171/a-java-collection-of-value-pairs-tuples

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