topic Java with i.MX28 in i.MX Processors

Java with i.MX28

alexandrglukhov — Wed, 08 Oct 2014 05:00:48 GMT

Hello, I have a problem, because I haven't enought experience. I have a single-board computer with i.MX28 with Linux, and I need to launch java programs (jre) on it. But I can't install java. Can somebody advise something about installing java with i.MX28?

Re: Java with i.MX28

Yuri — Wed, 08 Oct 2014 05:09:50 GMT

Please use the following from Community :

“All Boards Java”

https://community.freescale.com/docs/DOC-1478

Note, for i.MX28 we should use ARMv5 packages :

http://www.oracle.com/technetwork/java/embedded/downloads/javase/index.html

Have a great day,
Yuri

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Re: Java with i.MX28

alexandrglukhov — Wed, 08 Oct 2014 09:44:40 GMT

Thank you, but I meet another problems there:

If I need

Graphical ApplicationsARMv5 Linux - Headful (Early Access)EABI, glibc 2.5, Soft Float, Little Endian

then I download this one from Oracle

ARMv5 Linux - SoftFP ABI, Little Endian³	101 MB	http://download.oracle.com/otn/java/ejdk/8u6-b23/ejdk-8u6-fcs-b23-linux-arm-sflt-12_jun_2014.tar.gzejdk-8u6-fcs-b23-linux-arm-sflt-12_jun_2014.tar.gz

ARMv5 Linux - SoftFP ABI, Little Endian³

101 MB

http://download.oracle.com/otn/java/ejdk/8u6-b23/ejdk-8u6-fcs-b23-linux-arm-sflt-12_jun_2014.tar.gzejdk-8u6-fcs-b23-linux-arm-sflt-12_jun_2014.tar.gz

There are some "bin" directories with "java"

I put them on i.MX28, go to any of directory with java and write ./java -jar test.jar

So I get my Hello in console. But how to run program with visual forms, I get this error

Exception in thread "main" java.lang.UnsatisfiedLinkError: /ejdk1.8.0_06/linux_a

rm_sflt/jre/lib/arm/libawt_xawt.so: libXtst.so.6: cannot open shared object file

: No such file or directory

at java.lang.ClassLoader$NativeLibrary.load(Native Method)

at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1929)

at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1814)

at java.lang.Runtime.load0(Runtime.java:809)

at java.lang.System.load(System.java:1083)

at java.lang.ClassLoader$NativeLibrary.load(Native Method)

at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1929)

at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1835)

at java.lang.Runtime.loadLibrary0(Runtime.java:870)

at java.lang.System.loadLibrary(System.java:1119)

at java.awt.Toolkit$3.run(Toolkit.java:1651)

at java.awt.Toolkit$3.run(Toolkit.java:1649)

at java.security.AccessController.doPrivileged(Native Method)

at java.awt.Toolkit.loadLibraries(Toolkit.java:1648)

at java.awt.Toolkit.<clinit>(Toolkit.java:1683)

at java.awt.Component.<clinit>(Component.java:595)

Is it a problem with libXtst?

also Xfbdev on i.MX give this messages:

_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6

_XSERVTransOpen: transport open failed for inet6/freescale:0

_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6

mxsfb_pan_display: var->xoffset 0, info->var.xoffset 0

mxsfb_check_var: xres 640, yres 480, bpp 16

get_matching_pentry: 480:640:16 vs 480:640:16

mxsfb_pan_display: var->xoffset 0, info->var.xoffset 0

(EE) XKB: Couldn't open rules file /usr/share/X11/xkb/rules/base

(EE) XKB: No components provided for device Virtual core keyboard

Re: Java with i.MX28

jamesbone — Fri, 10 Oct 2014 21:16:36 GMT

The error that you are having in the XFbdev it is because the FSL image for the i.MX28 does not have X11 support, you may need to add some X11 server first. I would also recommend that you contact the people from Oracle, since the BSP of the i.MX28 was made for Console Only. So that it is the case.

Have a great day,
Jaime

Re: Java with i.MX28

alexandrglukhov — Mon, 13 Oct 2014 07:12:35 GMT

Thank you, for answer

And how can I add X11 server? You mean select X11 in ltib -m config and select "build full modular X server"? If yes, I already select it, but still have the same error. How can I start it, if it's needed?