BASH 4.2 vs. Jeditterm 3.36 and newer

[manticore-projects]

Greetings!

We have JediTerm up and running in general, but face a problem with a particular combination of JediTerm and Bash:

1. with a recent Bash 5.2.21, JeditTerm 3.36 works fine (and I can't reproduce any problem on my own computers)
2. with an older Bash 4.2 on CentOS 7, JeditTerm 3.36 either crashes or does not show a cursor (just white background)
3. however, an older JediTerm 3.18 works fine with the same older Bash 4.2 on Centos 7

I understand that this lacks a lot of information and I see it as a placeholder for further investigation.
Although I have been facing this problem on 4 different servers now. Some recent development broke older shells.

I will still test against latest JediTerm 3.40 (but you changed so many things again, which i still need to adopt).

Update: I compiled BASH 4.2.53 and BASH 4.4.18 on my own computer and it runs flawlessly with JeditTerm 3.36.

[manticore-projects]

I finally found the exception:

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at org.webswing.classloader.SwingClassloader.findClass(SwingClassloader.java:513)
at org.webswing.classloader.SwingClassloader.loadClass(SwingClassloader.java:220)
at org.webswing.classloader.SwingClassLoaderFactory$SwingClassLoaderWithAccessControl.superLoadClass(SwingClassLoaderFactory.java:58)
at org.webswing.classloader.SwingClassLoaderFactory$SwingClassLoaderWithAccessControl.access$000(SwingClassLoaderFactory.java:30)
at org.webswing.classloader.SwingClassLoaderFactory$SwingClassLoaderWithAccessControl$1.run(SwingClassLoaderFactory.java:46)
at org.webswing.classloader.SwingClassLoaderFactory$SwingClassLoaderWithAccessControl$1.run(SwingClassLoaderFactory.java:43)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at org.webswing.classloader.SwingClassLoaderFactory$SwingClassLoaderWithAccessControl.loadClass(SwingClassLoaderFactory.java:43)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at com.jediterm.core.Platform$Companion.detectCurrent(Platform.kt:25)
at com.jediterm.core.Platform$Companion.access$detectCurrent(Platform.kt:11)
at com.jediterm.core.Platform.<clinit>(Platform.kt:12)
at com.manticore.ui.TerminalShell.getTerminalShellDialog(TerminalShell.java:52)
at com.manticore.ui.AdminPanel$4.run(AdminPanel.java:284)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)

Something has changed regarding Companion.detectCurrent.

[manticore-projects]

Ok, problem understood: Platform.kt confuses my special class-loader. Porting it back to a plain Java file solved all my problems.

Although I think, just not using the Platform but implementing it myself also would solve my problem.

[manticore-projects]

vokoscreenNG-2024-01-17_23-54-00.mp4

The problem with the BASH still persists: SH and KSH are working, BASH freezes the panel and no error is thrown. But I can't replicate this on my own computer, only on CentOS 8 installations. Guess I will need to get a Centos 8 VM running.

[segrey]

@manticore-projects Thanks for reporting. Yes, com.jediterm.core.Platform is not intended for external usage (marked as internal). Please either implement it on your side or use analogs like com.sun.jna.Platform.

Regarding the the freeze, you can try to debug it yourself or capture the whole terminal session output and provide it here. Shell output can be captured using script command. For example, if bash is installed to /bin/bash, then use the following command as a shell:

/usr/bin/script /path/to/log.file.txt /bin/bash