[NETBEANS-3101] Can't launch (and connect) NetBeans from node

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 12.2
• Component/s: platform - Launchers&CLI
• Assignee: Jaroslav Tulach
• Reporter: Jaroslav Tulach
• Created: 16/Sep/19 11:01
• Updated: 31/Mar/21 06:12
• Resolved: 31/Mar/21 06:12

Description

 

I am trying to connect to a NetBeans based application from Visual Studio - aka Electron - aka node. Somehow the node mangles network setup and the InetAddress.getHostAddress() isn't the same. To reproduce create following structure of files:

$ ls -l | cut -c50-
dump.hprof
nb.js
nb.sh
netbeans -> /home/devel/bin/netbeans/bin/netbeans
$ cat nb.sh 
./netbeans 'dump.hprof'
$ cat nb.js 
var exec = require("child_process").execFile;
let path = './netbeans';let vvm = exec(path, [ 'dump.hprof' ])

Then start ./netbeans on background and wait for the GUI to launch. Then do following from command line:

./jvm.sh

The dump.hprof file opens in the the GUI. Close it and try the same via node.js:

node ./jvm.js

The heap dump isn't shown (on my computer), rather a warning dialog appears. Result of node and shell script disagreeing on what is local host address. One is using IPv6 and one IPv4.