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ID Category Severity Reproducibility Date Submitted Last Update
0001726 [Quercus] minor always 05-06-07 16:01 05-22-07 10:01
Reporter ybakos View Status public  
Assigned To nam
Priority normal Resolution fixed Platform
Status closed   OS
Projection none   OS Version
ETA none Fixed in Version 3.1.1 Product Version 3.1.0
  Product Build
Summary 0001726: Quercus does not work with Qcodo
Description When trying a first run of qcodo, Quercus reports a servlet exception:
Steps To Reproduce
Additional Information 500 Servlet Exception

com.caucho.quercus.QuercusRuntimeException: QApplicationBase::Unsupported
is an unknown constant
    at com.caucho.quercus.env.QuercusClass.getConstant(QuercusClass.java:719)
    at com.caucho.quercus.expr.ClassConstExpr.eval(ClassConstExpr.java:75)
    at com.caucho.quercus.env.QuercusClass.init(QuercusClass.java:322)
    at com.caucho.quercus.env.Env.createQuercusClass(Env.java:2983)
    at com.caucho.quercus.env.Env.createClassImpl(Env.java:2902)
    at com.caucho.quercus.env.Env.findClass(Env.java:2868)
    at com.caucho.quercus.env.Env.findClass(Env.java:2845)
    at com.caucho.quercus.env.Env.createClassImpl(Env.java:2899)
    at com.caucho.quercus.env.Env.findClass(Env.java:2868)
    at com.caucho.quercus.env.Env.findClass(Env.java:2845)
    at com.caucho.quercus.expr.StaticMethodExpr.eval(StaticMethodExpr.java:117)
    at com.caucho.quercus.program.ReturnStatement.execute(ReturnStatement.java:68)
    at com.caucho.quercus.program.Function.callImpl(Function.java:316)
    at com.caucho.quercus.program.Function.call(Function.java:264)
    at com.caucho.quercus.program.AbstractFunction.call(AbstractFunction.java:251)
    at com.caucho.quercus.env.CallbackFunction.call(CallbackFunction.java:116)
    at com.caucho.quercus.env.OutputBuffer.callCallback(OutputBuffer.java:227)
    at com.caucho.quercus.env.OutputBuffer.close(OutputBuffer.java:273)
    at com.caucho.quercus.env.Env.popOutputBuffer(Env.java:819)
    at com.caucho.quercus.env.Env.close(Env.java:4089)
    at com.caucho.quercus.servlet.ResinQuercusServlet.service(ResinQuercusServlet.java:155)
    at com.caucho.quercus.servlet.QuercusServlet.service(QuercusServlet.java:298)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
    at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103)
    at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:167)
    at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:226)
    at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:263)
    at com.caucho.server.port.TcpConnection.run(TcpConnection.java:477)
    at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:591)
    at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:613)
Attached Files

- Relationships

- Notes
(0001900)
ybakos
05-08-07 18:58

Apparently this may have to do with using another class's constants to predefine static class variables in another class.

On line 20 of QApplicationBase.class.php, where I have:
protected static $BrowserType = QBrowserType::Unsupported;

When I switch QBrowserType::Unsupported to 2048, the exception is no longer thrown.

But, now all I get is a blank browser window, no html source.
 
(0001902)
ybakos
05-08-07 19:06

If it's not too much trouble, can you explain why Resin is rendering a blank screen? No errors in the log either.
 
(0001904)
ybakos
05-10-07 07:58

I would like to help debug this further -- but can you suggest a way for me to get better error/debug info?
 
(0001917)
ybakos
05-15-07 14:14

Hi nam, I took your suggestion using *dump() methods to find the cause of the error. I'm getting closer, drilling down to the source of the error. So far, I've narrowed it down to QApplication::InitializeDatabaseConnections(). I will keep you posted here.
 
(0001918)
nam
05-15-07 14:32

Thanks for your help. I have narrowed the problem down to QApplication::$ConnectionStringArray not being set properly inside QApplicationBase::InitializeDatabaseConnections(). It looks like I can get in a fix today.
 
(0001919)
nam
05-15-07 14:36

It also appears that Exceptions are not being properly thrown. I will get a fix for it today.
 
(0001938)
nam
05-22-07 10:01

Most of the issues have been fixed. However, our basic SimpleXML implementation needs to be redone in order for qcodo to work.

http://bugs.caucho.com/view.php?id=1752 [^]
 

- Issue History
Date Modified Username Field Change
05-06-07 16:01 ybakos New Issue
05-08-07 18:58 ybakos Note Added: 0001900
05-08-07 19:06 ybakos Note Added: 0001902
05-10-07 07:58 ybakos Note Added: 0001904
05-15-07 13:35 nam Status new => assigned
05-15-07 13:35 nam Assigned To  => nam
05-15-07 14:14 ybakos Note Added: 0001917
05-15-07 14:32 nam Note Added: 0001918
05-15-07 14:36 nam Note Added: 0001919
05-22-07 10:01 nam Status assigned => closed
05-22-07 10:01 nam Note Added: 0001938
05-22-07 10:01 nam Resolution open => fixed
05-22-07 10:01 nam Fixed in Version  => 3.1.1


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