maple_loader.jar crash

[dieter-l-git]

maple_loader.jar crashes when I try to upload a sketch to an maple mini clone (with bootloader 2.0) via DFU.
It doesn't matter which sketch - I used blink for testing. Same issue with Arduiono IDE and PlatformIO.
I using the current 1.9.0 release with Arduino 1.8.13 or PlatformIO 5.1.0 on Win10 20H2 with Java 15.0.27.
With Java 8.280 - same issue.

Errorlog attached. Seems that the jSSC-2.8_x86_64.dll is the issue.

I tried by myself to build a new maple_loader.jar from source with jssc2.9.2.jar- this is working without issues.

hs_err_pid10232.log

Thank you

[fpistm]

I guess it is a duplicate of #67.
Never reproduced this issue. I think to remove the maple loader.

[dieter-l-git]

Sorry for the duplicate.
Setting the java path doesn't solve the issue.

I will try on an other PC or Laptop in the next few days to see if I can reproduce the issue.

If you remove the maple loader - is there a suggestion what can be used to upload a sketch without additionally hardware needed?

[fpistm]

You have to use the correct path. This is not necessarily the same one described in the issue than the one of your Arduino IDE path.

[ArminJo]

The reason is this line in maple_upload.bat: java -jar maple_loader.jar %1 %2 %3 %4
The java.exe is found by using the Windows %PATH% pointing to your java version15.
The java must be replaced by ......\arduino\java\bin\java which points to the Arduino Java 1.8!
The arduino internal usage of {the runtime.ide.path}/java/bin does not work 😞 .

[fpistm]

The reason is this line in maple_upload.bat: java -jar maple_loader.jar %1 %2 %3 %4 The java.exe is found by using the Windows %PATH% pointing to your java version15. The java must be replaced by ......\arduino\java\bin\java which points to the Arduino Java 1.8! The arduino internal usage of {the runtime.ide.path}/java/bin does not work 😞 .

Now java is not used. No more issue. See #89

[ArminJo]

Thanks, you are right, I get confused with the 2 STM cores 😀