NullPointerException on column resize (Extenddatatable)

[kalomo]

Hi,

sometimes i am getting an NullPointerException after resizing the column of an extenddatatable. But it is not reproducible. Sometimes it works, but sometimes it fails.

Does anyone have an idea?

The problem seems to be in the changeColumnSize method in the ExtendDataTableState class.

String[] newWidths = newValue.split(";");
 int index = 0;
for (Iterator<UIColumn> iter = extendedDataTable.getSortedColumns(); iter.hasNext();) {
 UIComponent col = (UIComponent) iter.next();
 if (col.isRendered()){
 String colId = col.getId();
 value.put(colId, newWidths[index++]);
 }//if
 }//fo

the newWidths array seems to be out of bounds..!!

java.lang.ArrayIndexOutOfBoundsException: 2
 org.richfaces.component.ColumnsSizeState.changeColumnSize(ExtendedDataTableState.java:337)
 org.richfaces.component.ExtendedDataTableState.changeColumnSize(ExtendedDataTableState.java:173)
 org.richfaces.component.UIExtendedDataTable.processColumnResize(UIExtendedDataTable.java:186)
 org.richfaces.component.UIExtendedDataTable.broadcast(UIExtendedDataTable.java:101)
 org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1364)
 org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1364)
 org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1364)
 org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1364)
 org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
 org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:296)
 org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)
 org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:409)
 com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:101)
 com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
 com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
 javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
 org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
 org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
 org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
 org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)

[ilya_shaikovsky]

show application code

[kalomo]

Hi

here it is.

HtmlExtendedDataTable table = new HtmlExtendedDataTable();
IdUtils.assignId(table);

table.setVar("items");
table.setRowKeyVar("rkv");
table.setValueExpression("selection",ViewUtil.createValueExpression("#{"+beanID+"_modelbean"+".selection}",SimpleSelection.class));
table.setValueExpression("tableState",ViewUtil.createValueExpression("#{"+beanID+"_modelbean"+".tableState}",String.class));
table.setValueExpression("binding",ViewUtil.createValueExpression("#{"+beanID+"_modelbean"+".table}",HtmlExtendedDataTable.class));
table.setValueExpression("componentState",ViewUtil.createValueExpression("#{"+beanID+"_modelbean"+".componentState}",DataComponentState.class));
table.setSortMode("single");
table.setEnableContextMenu(false);
table.disableGrouping();

table.setHeight("165px");
int tableWidth = list.size()*100;
table.setWidth(tableWidth+"px");

String headerLabel;

HtmlColumn c =null;
for (EntityMetaFieldVO entiyMetaFieldVO : list) {

c = new HtmlColumn();
IdUtils.assignId(c);
c.setSortExpression("#{items.fields['"+entiyMetaFieldVO.getField()+"'].value}");
c.setSortable(false);
c.setValueExpression("sortBy",ViewUtil.createValueExpression("#{items.fields['"+entiyMetaFieldVO.getField()+"'].value}"));
c.setWidth("100");

HtmlOutputText text = new HtmlOutputText();
text.setValueExpression(CommonConstants.ATTRIBUTE_VALUE, ViewUtil.createValueExpression("#{items.fields['"+entiyMetaFieldVO.getField()+"'].value}"));
c.getChildren().add(text);

table.getChildren().add(c);
}

[ilya_shaikovsky]

and which is the scope of the bean which hold binding?

[kalomo]

the bean is in session scope

[ilya_shaikovsky]

should be request. JSF components recreated on every request so storing them in session scoped objects could cause different issues.

[kalomo]

thanx ilya

I put the bean in request scope. But the same behavior as with session scope.

Any other idea?

[phlebiac]

Hi there,

I have the same problem here.

The bean that holds the binding-attribute is in request scope. I get a similar exception:

Caused by: java.lang.ArrayIndexOutOfBoundsException: 3
    at org.richfaces.component.ColumnsSizeState.changeColumnSize(ExtendedDataTableState.java:337)
    at org.richfaces.component.ExtendedDataTableState.changeColumnSize(ExtendedDataTableState.java:173)
    at org.richfaces.component.UIExtendedDataTable.processColumnResize(UIExtendedDataTable.java:186)
    at org.richfaces.component.UIExtendedDataTable.broadcast(UIExtendedDataTable.java:101)
    at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:329)
    at org.ajax4jsf.component.AjaxViewRoot.broadcastEventsForPhase(AjaxViewRoot.java:304)
    at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:261)
    at org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:417)
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
    ... 31 more