B4J Question [RPi][ABMaterial] can't get the server to run manually

Cableguy

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• Feb 13, 2016

• #2

I just keep re-running the Demo ABMaterial 1.05, in hope I get to find where the compiler is copying the demo.jar file to, BUT it just seems to NOT EXIST in the Raspi...
Can this be???
I ran 2 times the search feature os SCP on the entire file system of the pi and no sign of the Demo.jar file!!!!

 

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Erel

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• Feb 14, 2016

• #3

Make sure to copy the www folder together with the jar file.

Though there should be always some messages printed when you start the server. What is the output of java -version ?

 

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Cableguy

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• Feb 14, 2016

• #4

Seems like my PI just went corrupt over night, so I'll be picking up from my last backup... should be operational in a couple of hours, then I'll return to this, but if my memory serves me well, it something like 1.8.0_65.

I had tried several times copying the Jar file to a location in the pi and then run it, but NOTHING happened... nothing was shown in the command line.

 

Last edited: Feb 14, 2016

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Cableguy

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• Feb 14, 2016

• #5

Java HotSpot(TM) Client VM (build 25.65-b01, mixed mode)Java(TM) SE Runtime Environment (build 1.8.0_65-b17)java version "1.8.0_65"

 

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Erel

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• Feb 14, 2016

• #6

What is the output of java -jar <your jar file> ?

Are you sure that you have created a non-ui project?

 

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Cableguy

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• Feb 14, 2016

• #7

as I have stated, I am running th ABM 1.05 Demo unchanged, Bridge connected... all works OK...
BUT, if I try stand alone, doing sudo java -jar Demo.jar there's nothing outputted!!! not a single line!
command line just freezes for a minute (the cursor goes under the current command line, in disable state) and then comes alive again with a new blank command line

 

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Erel

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• Feb 14, 2016

• #8

Try it with a simple non-ui jar and see what happens.

 

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Cableguy

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• Feb 14, 2016

• #9

the Bridge.jar is one, and works perfect!

 

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Cableguy

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• Feb 14, 2016

• #10

what's puzzling me too is that, when I run it from the IDE with Bridge, I can't find the Demo.jar anywhere on the PI!!

 

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Cableguy

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• Feb 14, 2016

• #11

Here's a video showing the behaviour! I apologize for the low quality, but my device is FixedFocus, so in order to keep perceptible I had to keep some distance.

https://www.dropbox.com/s/yjy69eg3tz9irbm/VID_20160214_181604.3gp?dl=0

 

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Erel

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• Feb 15, 2016

• #12

Cableguy said:

what's puzzling me too is that, when I run it from the IDE with Bridge, I can't find the Demo.jar anywhere on the PI!!

Click to expand...

You can find the jar in the tempjars forum. It will be named AsyncInput1 or 2.

The actual text is not clear in the video.

 

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Cableguy

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• Feb 15, 2016

• #13

I do have the asyncfile in temp... How do I run it manually?

 

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Erel

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• Feb 15, 2016

• #14

B4X:

java -jar filename

 

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Cableguy

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• Feb 15, 2016

• #15

So no need for the jar extension in the filename!?

 

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Erel

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• Feb 15, 2016

• #16

No.

 

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Cableguy

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• Feb 15, 2016

• #17

same result as with Demo.jar....

The cursor goes below the command line, stays there for about 30sec and then a new command line is available...
Nothing is outputted to the console... my head is starting to give in!

 

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Erel

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• Feb 16, 2016

• #18

B4J-Bridge is a regular B4J app. So it B4J-Bridge works then there is no reason for your apps not to work.

Create a new empty non-ui app that logs a message and check it.

 

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Cableguy

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• Feb 16, 2016

• #19

Hi EREL...
It's me... again...

But this time to report SUCCESS!!!
I've been making a newbie mistake, and was compiling in DEBUG mode!!!!
Of course, the server only ran when connected through B4J-Bridge.
This came to me when I tried to run a on-going project directly from the device, without the IDE...
On the device, we get a nice "trying to connect to debugger" message... but with B4J we don't... So maybe a wish to be made.

 

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Ormente

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• Feb 16, 2016

• #20

Wow! That was a tricky one to catch... congrats!

 

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