Description
So I have a small webapp which basically consists of a pageflow and a jdbc control. The single jsp in the web app invokes an action in the page flow as:
<tr><td><img src="doRenderChart.do?versionName=9.2Beta&projectName=Workshop&componentName=W-IDE&JFWidth=500&JFHeight=300" border="0"/></td></tr>
It does this 10 or 11 times to build a table which contains images generated by the action using the jdbc control to retrieve data from a database. Typically (although not always) at least one of the images will not be generated due to an SQL Error throw by the jdbc control. The error is that the SQLConnection has been closed.
Here is a portion of the tomcat log, I've added some debugging statements in the ControlContainerContext class to help me see what was going on, the doRenderChart() is the page flow action being called by the jsp. It appears the control's begin and end events are not fired in the right order, causing (in some instances) the control to be unititialzed before a call has been completed.
log4j:WARN Please initialize the log4j system properly.
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34
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- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=null
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDE
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Docs - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDECore
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-External
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Project
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Javelin
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeControls
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeNetUI
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Upgrade
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 33 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=null - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 33 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Docs
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDE
BEGIN_CONTEXT: THREAD ID = 33 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 33 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-External - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 33 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDECore - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Project
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 33
calling version=9.2Beta project=Workshop component=W-Javelin - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeControls - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 33 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeNetUI - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Upgrade
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
END_CONTEXT: THREAD ID = 33
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
Listening for transport dt_shmem at address: jdbconn
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=null - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Docs - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-External - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDE
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
BEGIN_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-IDECore - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34 - Enter: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 34
calling version=9.2Beta project=Workshop component=W-Project - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Javelin
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeControls
BEGIN_CONTEXT: THREAD ID = 34 - Leave: doRenderChart() ****
- Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-RuntimeNetUI
BEGIN_CONTEXT: THREAD ID = 35 - Leave: doRenderChart() ****
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 35
BEGIN_CONTEXT: THREAD ID = 35 - Enter: doRenderChart() ****
calling version=9.2Beta project=Workshop component=W-Upgrade - Leave: doRenderChart() ****
BEGIN_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 35
END_CONTEXT: THREAD ID = 34
END_CONTEXT: THREAD ID = 34
- Enter: doRenderChart() ****
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