问题
I have tried all ways
running application as
1) javaws -J-Xdebug -J-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=9123 My.jnlp
2) setting the same option in JAVA_TOOL_OPTIONS
3) setting the same option in JAVAWS_VM_ARGS
4) setting the same option (without -J) in Java control panel
Tried the same options with or without Xnoagent
Each and every way, after doing it when I try to connect from eclipse - it cannot connect. When I do netstat -a - it doesn't show anyone listening on 9123.
I am on windows 10
回答1:
The solution reported in Remote debugging java web start under JVM 1.8
is good, but, on windows environment, you have to follow exactly the indication putting everything in a batch file and invoking that one. I have just tried even with java 9 creating a file launchMyJnlp.bat with this content.
setlocal
set JAVAWS_TRACE_NATIVE=1
set JAVA_TOOL_OPTIONS=-agentlib:jdwp=transport=dt_socket,address=9999,server=y,suspend=n %JAVA_TOOL_OPTIONS%
"c:\Program Files\Java\jre-9"\bin\javaws my.jnlp
endlocal
Launching >launchMyJnlp.bat I found the application listening on port 9999 has expected!
来源：https://stackoverflow.com/questions/45277361/unable-to-debug-jnlp-with-java-8