[CLOSED]ArrayIndexOutOfBoundsException on ColumnModel

[mtarantini]

There is a little problem with the ColumnModel, under some circumstance an ArrayIndexOutOfBoundsException occurs.

I don't have a proper testcase because sometimes the problem occurs, sometimes it won't.

java.lang.ArrayIndexOutOfBoundsException: -1
    at java.util.ArrayList.get(ArrayList.java:324)
    at com.extjs.gxt.ui.client.widget.grid.ColumnModel.setHidden(ColumnModel.java:479)
    at com.extjs.gxt.ui.client.widget.grid.GroupingView.renderRows(GroupingView.java:456)
    at com.extjs.gxt.ui.client.widget.grid.GridView.afterRender(GridView.java:641)
    at com.extjs.gxt.ui.client.widget.grid.Grid.afterRenderView(Grid.java:657)
    at com.extjs.gxt.ui.client.widget.grid.Grid$1.run(Grid.java:646)
    at com.google.gwt.user.client.Timer.fire(Timer.java:141)
    at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
    at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
    at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
    at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
    at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
    at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
    at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1668)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
    at java.lang.Thread.run(Thread.java:619)

[Arno.Nyhm]

maybe there is a spelling error:

check all your typed column names ... also the expand column name ... maybe there is the error


an better guess with my crystal ball:
you have a GroupingView ... and something wrong with the "GroupField" (maybe misspelling or not setting it or something like this)

[mtarantini]

I think is the groupingstore who cause the exception.

As I don't use the "expandColunm" function, and my store is empty as start, it must come from the groupBy function on an empty store.

[mtarantini]

Problem fixed, thx Arno.Nyhm

[Arno.Nyhm]

can you please explain how you fixed it?

[sven]

It was referencing a non existing columnid. Marking this as closed.

Please do not update the threadtitles on your own.

[mtarantini]

In fact, I was creating a empty store in the construstor of my class, and I was setting the groupBy just after.

As my store is filled later, at rendering (the store which is still empty) the ColumnModel could not find the column setted in the groupBy.

So I set the groupBy after my store is loaded.

[sven]

I dont think that an empty store is the problem, i cannot reproduce it with an empty store. THe problem will be that the groupby field was set to something that was not existing in the columnmodel. I will add some assert statements here to give some better hints.