RM on ubuntu 18.04 [Solved]

wnewell · Post by **wnewell** » Sat Jun 16, 2018 8:40 am

Been a long time since I've been here. here's what I get when I try and run rmir now.
root@mythfe0:/home/wes/rm# java -jar RemoteMaster.jar
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.hifiremote.jp1.RemoteMaster (file:/home/wes/rm/RemoteMaster.jar) to method java.lang.ClassLoader.findLoadedClass(java.lang.String)
WARNING: Please consider reporting this to the maintainers of com.hifiremote.jp1.RemoteMaster
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
root@mythfe0:/home/wes/rm#
RM version 2.06 build 5
root@mythfe0:/home/wes/rm# java --version
openjdk 10.0.1 2018-04-17
OpenJDK Runtime Environment (build 10.0.1+10-Ubuntu-3ubuntu1)
OpenJDK 64-Bit Server VM (build 10.0.1+10-Ubuntu-3ubuntu1, mixed mode)
root@mythfe0:/home/wes/rm#
What am I doing wrong.

Barf · Post by **Barf** » Sun Jun 17, 2018 2:16 am

You are using Java 10, which is not currently supported. IFAIK, only Java 7 and 8 (?) are supported. Install Java 8 and you will be OK.

Please do not run RM as root. If the system is set up correctly, everything runs as non-root, except for the parallel driver (but that is a bad idea anyhow).

yaworski · Post by **yaworski** » Sun Jun 17, 2018 4:08 am

RMIR is compiled with Java 7 right now. Java 8 works for sure. I don't have Java 9 installed right now so I'm not able to test it right now, as I'm on a really poor Internet connection until Tuesday.

I've checked with Java 10 as I have it installed side by side with Java 6, 7 and 8 on my Arch and I can confirm that it doesn't work. I don't know if the reason is what's printed out as a WARNING or something else. This is only a warning and not an error. It needs some deeper investigation.

--edit--

I've compiled RMIR using JDK 10 but it still doesn't start. I've temporarily disabled the code causing the illegal access warning and it still doesn't start. So as I thought it won't be easy to port RMIR to Java 10. I've seen a lot of deprecation warnings during compilation so a lot of code would need to be rewritten.

mdavej · Post by **mdavej** » Sun Jun 17, 2018 8:58 am

3FG found the culprit a while back. Sounds like it may be an easy fix, changing to a different method of dynamically loading classes.
http://www.hifi-remote.com/forums/viewt ... 317#133317

But I suppose this also means once it's fixed, RMIR will only work with later versions of Java and not the earlier ones.

wnewell · Post by **wnewell** » Sun Jun 17, 2018 10:03 am

Thanks guys. Deleted java 10 and loaded 8 and all works now.

yaworski · Post by **yaworski** » Sun Jun 17, 2018 12:15 pm

Thanks mdavej for pointing that out. I read some info on the subject and after some changes in the code I'm now able to build RMIR under JDK 7 and run it on Java versions 7, 8 and 10 (as mentioned earlier, I don't have Java 9 installed, but shouldn't be a problem).

I can't make any tests right now as I don't have any remote with me, so I don't know if it fully works, but at least the GUI starts up correctly and there're no exceptions in the rmaster.err. The icons on the toolbar are also loaded correctly.

mdavej · Post by **mdavej** » Sun Jun 17, 2018 12:49 pm

That's great news! Thanks, Marcin.

wnewell · Post by **wnewell** » Mon Jun 18, 2018 11:38 am

wnewell wrote:Thanks guys. Deleted java 10 and loaded 8 and all works now.

Well, I spoke before trying it with a remote. Getting the dreaded No remotes found. Tried different com ports, different jp1.2/3 cables, new batteries, etc. Same remotes I modded many years ago. No problem loading saved rmir files. Anyone got any ideas? Here's parts of rmaster.err.
RemoteMaster v2.06 build 5
Legacy merge set = true
System Properties:
java.version = 1.8.0_171
java.vendor = Oracle Corporation
os.name = Linux
os.arch = amd64
java.home = /usr/lib/jvm/java-8-openjdk-amd64/jre
java.class.path = /home/wes/rm/RemoteMaster.jar
Adding to classpath: file:/home/wes/rm/
Error parsing gtk-icon-sizes string: ''
Generating deviceImporter for protocol Blank
Generating deviceImporter for protocol Acer Keyboard
DevParm is Device
DevParm is Sub Device
**** Warning: multiple protocols with PID 00 5E and variantName ....
Starting normal download
Interface Name = JP1.X Serial
Port Name = /dev/ttyS0
Testing interface: JP1.X Serial
Interface matched. Trying to open remote.
Port Name = NULL
Failed to open
RemoteMaster.windowClosing() entered

Barf · Post by **Barf** » Mon Jun 18, 2018 1:00 pm

wnewell wrote:Tried different com ports, different jp1.2/3 cables,...

It is hard to help you if you are not telling exactly what you try to do...

...
Interface Name = JP1.X Serial
Port Name = /dev/ttyS0
Testing interface: JP1.X Serial
Interface matched. Trying to open remote.
Port Name = NULL
Failed to open
RemoteMaster.windowClosing() entered

/dev/ttyS0 is on Linux a boda-fide serial port, somehow I doubt that you are using it. Assuming you are using a FTDI-like serial cable, this should show up as /dev/ttyUSB0 or similar. Try

Code: Select all

ls /dev/tty????

and tell us the outcome. (That's four literal question marks.)

wnewell · Post by **wnewell** » Mon Jun 18, 2018 2:34 pm

I'm trying to download or upload to the rcrp05b remote like I did many years ago. Don't know why you want this, but here's all the serial ports.
wes@mythfe0:~$ ls /dev/ttyS*
/dev/ttyS0 /dev/ttyS14 /dev/ttyS2 /dev/ttyS25 /dev/ttyS30 /dev/ttyS8
/dev/ttyS1 /dev/ttyS15 /dev/ttyS20 /dev/ttyS26 /dev/ttyS31 /dev/ttyS9
/dev/ttyS10 /dev/ttyS16 /dev/ttyS21 /dev/ttyS27 /dev/ttyS4
/dev/ttyS11 /dev/ttyS17 /dev/ttyS22 /dev/ttyS28 /dev/ttyS5
/dev/ttyS12 /dev/ttyS18 /dev/ttyS23 /dev/ttyS29 /dev/ttyS6
/dev/ttyS13 /dev/ttyS19 /dev/ttyS24 /dev/ttyS3 /dev/ttyS7
But only 3 of them have actual uarts. S0, S4, and S5. I'm using ttyS0. Standard com1 in winspeak.
es@mythfe0:~$ setserial -a /dev/ttyS0
/dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4
Baud_base: 115200, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal skip_test
wes@mythfe0:~$ ls -l /dev/ttyS0
crw-rw---- 1 root dialout 4, 64 Jun 18 05:05 /dev/ttyS0

Any other info you need?

wnewell · Post by **wnewell** » Mon Jun 18, 2018 2:55 pm

Oh, I'm not using a usb jp1 cable. I do jnow the difference between usb and rs232 ports. I have 2 of these cables.

https://www.diygadget.com/jp1-1-1-1-2-1 ... motes.html

Just for grins I opened read/write permissions to all on the port. No change.
wes@mythfe0:~$ ls -l /dev/ttyS0
crw-rw-rw- 1 root dialout 4, 64 Jun 18 15:43 /dev/ttyS0

Barf · Post by **Barf** » Tue Jun 19, 2018 12:00 am

Ok, that is a "real" serial cable. Are you sure that /dev/ttyS0 really corresponds to hardware? Today very few PCs have real serial interfaces. Can you check using something else?

Code: Select all

wes@mythfe0:~$ ls -l /dev/ttyS0
crw-rw-rw- 1 root dialout 4, 64 Jun 18 15:43 /dev/ttyS0

Modern Linuxes tend to undo that, at latest by the next reboot. Better is

Code: Select all

sudo usermod -aG dialout `whoami`

(at least on Fedora, I believe also on Ubunto).

wnewell · Post by **wnewell** » Tue Jun 19, 2018 12:50 am

Assuming you want to make sure I'm member of the dialout group. I already am.
wes@mythfe0:~$ groups wes
wes : wes adm dialout cdrom sudo dip video plugdev lpadmin sambashare mythtv
In case rm uses root to dialout I added root to the dialout group too. No change.

I might add that uploads and downloads stop working a few distros back. Don't remember exactly when, but at least a few years back. My original programing of the remotes with rm was probably around 2010 and I was using mandriva linux back then iirc, but it was on this same machine which I've had since ~2009. I just never needed to reprogram the remotes since then.

yaworski · Post by **yaworski** » Tue Jun 19, 2018 3:55 am

If anyone is interested in testing a possible Java 9/10 fix, you can grab it here:
https://www.dropbox.com/s/bc7tfj5l58foa ... r.jar?dl=1

I've tested it under Java 7 and Java 10 with URC-6440 (JPS), URC-7980 (JP1.x serial) and Nevo C3 (CommHID) and everything seems to work.

PS. I'm sorry for using dropbox instead of the file section - I've tried uploading this multiple times and failed.

wnewell · Post by **wnewell** » Tue Jun 19, 2018 9:53 am

Still no remotes found, but can confirm it runs ok on ubuntu 18.04 with java 8 or java 10 installed.