🚀 go-pugleaf

Hi Yu,

> Do I have to use "Add Break point" and follow up with "Step Into" or
> "Step Over" to debug the project?

It depends on what problem you are trying to debug. The basic idea is you need to suspend the VM before you can "debug" your code. Most of the debugger operations are disabled until the VM is suspended. To suspend the VM you can use breakpoints, or pause command.  

-Hin 



yu wrote:

>Hi Hin,
>
>
>
>  Thanks for your quick response. It worked when I used the "Add Breakpoint"
>trick.  Do I have to use "Add Break point" and follow up with "Step Into" or
>"Step Over" to debug the project?  I am working on a complicated java
>project including hundreds of source files connected to a similar package
>serving as a library for this project.  I just switched to use JBuilder to
>work on this project.  Since I'm a new user for JBuilder, could you tell me
>a good strategy to debug such kind of project using Jbuilder.  Do I have to
>use different "Break points" for different source files in order to find
>bugs in these classes?  Many thanks,
>
>
>
>Yu
>
>
>
>"Hin Boen" <hboen@borland.com> wrote in message
>news:402bc4f7$1@newsgroups.borland.com...
>  
>
>>Hi Yu,
>>
>>    
>>
>>>suspended the project for debugging
>>>      
>>>
>>I assume you press "pause" button to suspend the VM.  And the VM happens
>>to stop at WToolkit.java.  Since this java file is part of the JDK, and
>>is not compiled with debug information, JBuilder will not be able to
>>show you any data.
>>
>>If you want the VM to stop at your java code, you need to add a line
>>breakpoint in that java code. When VM executes that java code, it will
>>hit the line breakpoint and suspend the VM.
>>
>>-Hin
>>
>>
>>yu wrote:
>>
>>    
>>
>>>Thanks Hin.  After I compiled the codes with debug option (or -g using
>>>javac), suspended the project for debugging, pressed the "Show Current
>>>Frame" button, I didn't see the local variables in the current frame.  It
>>>only displayed "No debug information" in the current frame.  In the
>>>"Threads, call stacks and data" frame, it showed the current stepping
>>>      
>>>
>thread
>  
>
>>>is at "AWT-Windows" and the selected stack frame is "eventLoop() -1,
>>>sun.awt.windows.WToolkit, WToolkit.java".   What went wrong?  Do I miss
>>>      
>>>
>any
>  
>
>>>critical components in my system.  I did try to reinstall JBuilder on my
>>>computer but that didn't help.  Any more suggestions?  Thanks,
>>>
>>>
>>>"Hin Boen" <hboen@borland.com> wrote in message
>>>news:402ab5b7@newsgroups.borland.com...
>>>
>>>
>>>      
>>>
>>>>Hi Yu,
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>after I suspended the project for debugging
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>When the VM in the suspended mode, press "Show Current Frame" button,
>>>>        
>>>>
>see
>  
>
>>>>        
>>>>
>>>if the local variable is also shown in the current frame. "Show Current
>>>Frame" button is the rightmost button located on the button of JBuilder
>>>screen. If you do see the local variables, could you move the mouse over
>>>      
>>>
>any
>  
>
>>>of those local variables in the editor, and see if the tool tips value is
>>>displayed?
>>>
>>>
>>>      
>>>
>>>>        
>>>>
>>>>>I can't make the Expression Insight and tool tips features
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>To display the Expression Insight window, you need to hold down the ctrl
>>>>
>>>>
>>>>        
>>>>
>>>key, and move the mouse to the expression that you want to evaluate.  To
>>>      
>>>
>see
>  
>
>>>the tool tips value, just move the mouse to the expression that you want
>>>      
>>>
>to
>  
>
>>>evaluate.
>>>
>>>
>>>      
>>>
>>>>Thanks
>>>>Hin
>>>>
>>>>yu wrote:
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>Thanks for your response, Hin.  I did use -g option when compiling the
>>>>>codes.  I also used the Project Properties with the "Source, line and
>>>>>variable information" for Debug options.  It didn't work either.   Even
>>>>>
>>>>>
>>>>>          
>>>>>
>>>when
>>>
>>>
>>>      
>>>
>>>>>I tried the "Welcome.jpx" and other examples provided by "JBuilder", I
>>>>>
>>>>>
>>>>>          
>>>>>
>>>can't
>>>
>>>
>>>      
>>>
>>>>>make the Expression Insight and tool tips features work after I
>>>>>          
>>>>>
>suspended
>  
>
>>>>>the project for debugging.  This is so frustrating.  Please let me know
>>>>>
>>>>>
>>>>>          
>>>>>
>>>if
>>>
>>>
>>>      
>>>
>>>>>you or anybody in the newsgroup would have more suggestions.  Thanks.
>>>>>
>>>>>
>>>>>
>>>>>Bruce
>>>>>
>>>>>"Hin Boen" <hboen@borland.com> wrote in message
>>>>>news:4027eb90$1@newsgroups.borland.com...
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>It seems to me that your class files do not have any debug
>>>>>>            
>>>>>>
>information.
>  
>
>>>>>>Please make sure your application is compiled with debug information
>>>>>>option.  If you compile your application with javac, you need to
>>>>>>            
>>>>>>
>use -g
>  
>
>>>>>>option.  If you compile your application within JBuilder, see Project
>>>>>>            
>>>>>>
>|
>  
>
>>>>>>Project Properties..., select Build tab, select Java tab
>>>>>>
>>>>>>Thanks
>>>>>>Hin
>>>>>>
>>>>>>yu wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>            
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>I tried to use the JBuilder 8 SE version to debug my projects.  Every
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>time
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>>I used the debugger to see variable values with the Expression
>>>>>>>              
>>>>>>>
>Insight
>  
>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>and
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>>tool tips features, it doesn't show those variable values.  If I use
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>control
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>>key and the right mouse click, it always shows the variable <not in
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>scope>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>>message.  What am I doing wrong or this feature is not available in
>>>>>>>              
>>>>>>>
>the
>  
>
>>>>>>>JBuilder 8 SE version?  Many thanks,  Bruce
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>
>>>
>>>      
>>>
>
>
>  
>