如果使用 jpackage --win-console 参数激活控制台，则可以更容易地诊断jpackage生成的EXE问题.

Problems with the EXE generated by jpackage can be easier to diagnose if you activate the console with jpackage --win-console parameter.

您可能不想对主应用程序EXE执行此操作，因此可以使用第二个启动器来分发您的应用程序，该启动器启用了控制台并且具有相同的主类.只需创建一个新文件 appwithconsole.properties 并使用:

You might not want to do this for the main app EXE, so instead you could distribute your application with a second launcher which has the console enabled and same main-class. Just create a new file appwithconsole.properties and use:

jpackage --add-launcher debugversion=appwithconsole.properties ... rest of command line.

appwithconsole.properties

main-class=as.used.in.command.line
win-console=true

然后在删除jar后尝试 debugversion.exe ，它应该比没有控制台的EXE更清楚地报告错误:

Then try debugversion.exe after deleting the jar, it should report the error more clearly than the EXE without console:

Error: Could not find or load main class ...