Repository navigation
Processing won't start a second time when a system proxy server is set on Linux #438
Description
Description
The IDE will crash after a second start, without any error messages.
Expected Behavior
The IDE can start
Current Behavior
The IDE failed to start at the second time
Steps to Reproduce
- Open processing
- Quit
- Open processing again.
Your Environment
- Processing version: processing-4.0b6
- Operating System and OS version: Arch Linux
- Other information:
Possible Causes / Solutions
After rm -rf ~/.config/processing, the IDE can start.
Activity
yujqiao commentedon Mar 7, 2022
In
preference.txt,is relevant.
If these two lines are deleted, then the next start will work
yujqiao commentedon Mar 7, 2022
Background: I have http and sock proxy set, in the KDE Proxy setting.
After reading https://github.com/processing/processing4/blob/2a1fae8f77243716b48eee958229cb1f40dcbd09/app/src/processing/app/SingleInstance.java#L130 and
strace -f ./processing, I found out that processing try to connect the instance server via the proxy. This didn't work, of course.Seting
proxy.system=falseinpreference.txtsolves the issue.[-]Crash after a second start[/-][+]Processing won't start a second time when a system proxy server is set on Linux[/+]benfry commentedon Apr 23, 2022
Hm, I don't personally know enough about system proxies to understand why enabling it would cause connections to localhost break. Maybe someone else can help.
guilhermesilveira commentedon Apr 26, 2022
@rapiz1 can you try it with beta 7?
dev01111 commentedon Jun 21, 2022
Working on a fix for this issue. Maybe we should disable proxys when running singleinstance.java?
yujqiao commentedon Jun 21, 2022
UPDATE PROXY
dev01111 commentedon Jun 21, 2022
#501
This little addition of code doesn't ask the proxy about a private Loopback IP (localhost also known as 127.0.0.1) resolving lots of potential issues. However it is untested, try building this code.
benfry commentedon Aug 8, 2022
Ok, thanks; I can't just ship it out without testing, we'd need someone who's dealing with proxies to weigh in.
As far as I know,
localhostshould not be proxied (why would it be? it's not like the receiving proxy server can redirect traffic back to… 127.0.0.1), but it seems that things have gone back and forth with whether that's the correct behavior in Java or not:https://bugs.openjdk.org/browse/JDK-8025065
https://bugs.openjdk.org/browse/JDK-6737819
dev01111 commentedon Aug 12, 2022
Java should definitely fix this, I just thought that maybe a temporary solution could be good while the nerds at Oracle work this out.
I also tried building it, no
javacerrors.