Great tips! Craig, thank you so much! Your answers saved us much time in 
this upgrade project and finally it works correctly! have a great rest of 
the week! Jenny :)

On Monday, March 21, 2022 at 5:27:38 PM UTC-5 Craig Mitchell wrote:

> (2) As we can only use JS debugger, it will only show javascript variable 
> name.
>
> Also, you should see the Java variable name, as well as the Java code, but 
> in the Chrome JS debugger.  GWT uses source maps to map them together.
>
> On Tuesday, 22 March 2022 at 9:19:29 am UTC+11 Craig Mitchell wrote:
>
>> >  GWT documentation, it suggested to use "noserver" for DevMode launcher 
>> argument
>> I don't see that in the doco:  
>> http://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/devmodes/CodeServer.html
>>
>> > (1)
>> This is outside of GWTs responsibility.  Sounds like you have an Eclipse 
>> / Log4j / Tomcat config issue.
>>
>> > (2)
>> To watch a variable, just use Chromes debugger:  
>> https://developer.chrome.com/docs/devtools/javascript/reference/#watch
>>
>> Use log, use GWT.log("...") to log messages when running in dev.
>>
>> To log messages in production, you'd need something like this:
>>
>> public static native void log(String log) /*-{
>>         $wnd.console.log(log);
>> }-*/;
>>
>> Hope this helps.  :)
>>
>> On Tuesday, 22 March 2022 at 7:12:54 am UTC+11 [email protected] wrote:
>>
>>> Craig, 
>>>
>>> Thanks very much for your help! After I changed the launcherDir value to 
>>> the path of my war file location as you suggested, the problem got solved. 
>>> I can run the application in super dev. mode with GWT 2.9, JDK 11 and 
>>> Tomcat 9. 
>>>
>>> -launcherDir C:\Users\jiny\gitCodeServer\aries\war
>>>
>>> The reason I chose previous deployment path is that in the GWT Video it 
>>> suggested to use wtp.deploy arg + context path for the launchDir value.
>>>
>>> The thing I'm still a bit puzzled is that in GWT documentation, it 
>>> suggested to use "noserver" for DevMode launcher argument, but I didn't add 
>>> this option to the DevMode configuration. It still works to use GWT 
>>> Development Mode after running the Tomcat server. The  launcherDir is added 
>>> to the GWT Development Mode(CodeServer) launcher configuration. It would be 
>>> great that you help explain a bit.
>>>
>>> During the process of running and debugging the application in this 
>>> updated environment, I have two questions and hope they can be clarified:
>>>
>>> (1) Is there anyway to show log4j debugging information in the "Console" 
>>> view in Eclipse? After the application is compiled and loaded, the logging 
>>> information is removed and it only shows blank window with "Aries(1) 
>>> [launch Chrome]".
>>>
>>> (2) As we can only use JS debugger, it will only show javascript 
>>> variable name and we used to use "Watch" to check expression value, but we 
>>> don't have this option any more. 
>>>  Java System.out message can no longer be displayed in the console.  Any 
>>> tips for debugging in the super dev. mode?
>>>
>>> Your help is greatly appreciated!
>>> Jenny
>>> On Saturday, March 19, 2022 at 12:50:39 AM UTC-5 Craig Mitchell wrote:
>>>
>>>> It sound like your GWT code server launcher directory setting isn't 
>>>> correct.  And it doesn't look correct either.  It should be the war 
>>>> directory of your project.
>>>>
>>>> So, something like "c:\whereever_your_code_is\your_project\war" (you 
>>>> might not have called it "war", it's called whatever you put in the 
>>>> settings in GWT -> Web Application -> WAR directory).
>>>>
>>>> Basically, the GWT code server needs to override the 
>>>> (your_module).nocache.js file, so it need to know where that is, and that 
>>>> is in a directory under your war directory.
>>>>
>>>> On Friday, 18 March 2022 at 9:59:04 am UTC+11 [email protected] wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> Recently, I started to resume on our GWT upgrade project with GWT 2.9 
>>>>> and JDK 11.
>>>>>
>>>>> As it has been discussed before, the embedded Jetty server can't work 
>>>>> with JDK 11 due to the ASM lib version issue. The recommended approach is 
>>>>> to set up an external server, so I followed the following GWT document to 
>>>>> manually configure GWT development mode by following steps specified in 
>>>>> the 
>>>>> second Video. I've watched the video and tried this approach many times, 
>>>>> but it still gave 404 error. It seems hard to setup external server and 
>>>>> configure Development mode correctly for our project.
>>>>>
>>>>> Any input or suggestion is greatly appreciated!
>>>>>
>>>>> *http://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/servers/Tomcat.html
>>>>>  
>>>>> <http://gwt-plugins.github.io/documentation/gwt-eclipse-plugin/servers/Tomcat.html>*
>>>>>
>>>>> Manually Configure GWT Development Mode
>>>>>
>>>>> Manually Configuring the -launcherDir in the GWT Eclipse Plugin
>>>>>
>>>>> Our GWT project is not Maven oriented and it was developed several 
>>>>> years ago with a big codebase. 
>>>>>
>>>>> Step 1: Converted Aries project to Dynamic Web Project by adding 
>>>>> project facet "Dynamic Web Module" in Eclipse.
>>>>>
>>>>> Step 2: Set up Apache Tomcat 9 Server
>>>>>
>>>>> Step 3: Add the project to server. Right click on Server -> Add and 
>>>>> Remove
>>>>>
>>>>> Step 4: Start the Tomcat Server
>>>>>
>>>>> Step 5: Right click project->Debug As -> GWT Development mode
>>>>>
>>>>> Step 6. It started fine. Stop it so we can add the -launcherDir 
>>>>> Program Arg
>>>>>
>>>>> Step 7: Double click on Tomcat server, select Open launch configuration
>>>>>
>>>>>  Get the server web app directory root: wtp.deploy
>>>>>
>>>>> Copy path
>>>>>
>>>>>  
>>>>> C:\EclipseGWTCodeServerWorkSpace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
>>>>>
>>>>> Step 8. Open the file explorer to see the deployment path
>>>>>
>>>>> Step 9: Go to Debug Configurations
>>>>>
>>>>> GWT Development Mode (CodeServer)->Arguments.
>>>>>
>>>>> Add -launcherDir
>>>>>
>>>>> Value: It is the wtp.deploy arg + context path.
>>>>>
>>>>> After updated the Argument to GWT Development Mode(CodeServer), the 
>>>>> Arguments tab has following content:
>>>>>
>>>>> -launcherDir 
>>>>> C:\EclipseGWTCodeServerWorkSpace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\aries
>>>>>  
>>>>> -logLevel INFO -port 9876 edu.vanderbilt.mc.aries.ARIES
>>>>>
>>>>> Step 10 Launch the code server, click on Debug from CodeServer dialog. 
>>>>> Now both the Web Server and Code Server are running. Back to the file 
>>>>> manager. Watching for the application directory to be created.
>>>>>
>>>>> Step 11: Launch the browser for debugging with the Javascript Debugging
>>>>>
>>>>> Open with SBDG debugger
>>>>>
>>>>> Step 12: Open browser with Code Server URL: 127.0.0.1:9876 and Change 
>>>>> the port number to 8080 ( the Tomcat web server port number)
>>>>>
>>>>> It gave me 404 Not found error.
>>>>>
>>>>> Your help is greatly appreciated, 
>>>>>
>>>>> Jenny
>>>>>
>>>>

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