B4J Question Just curious: where is the app after B4jpackager11 ?

[peacemaker]

HI, All

If .jar compiled is around 20 MB, but after building a standalone package ... where are app's binaries located ?

 

[Erel]

Moved to B4J forum.

Together with the other JVM modules. You can see it by running:

 

[peacemaker]

Sorry, Erel, I did not understand where the files with my compiled code are placed
In subfolders: bin, legal, lib, conf....

 

[aeric]

Sorry, Erel, I did not understand where the files with my compiled code are placed
In subfolders: bin, legal, lib, conf....

The compiled code (I think most part of it if not all) is in the file name modules inside lib folder.

 

[peacemaker]

modules inside lib folder

Yes, the biggest file indeed, thanks for searching result
Question was just curious how the contents looks like, open for any modifications....

 

[aeric]

Yes, the biggest file indeed, thanks for searching result
Question was just curious how the contents looks like, open for any modifications....

It is in machine byte code, not intended for human reading or editing. Someone needs to reverse engineering the byte code.

 

[Erel]

You can use a JDK tool named jimage to list and extract the contents of the modules file.

Example:

%j%\jimage extract --include regex:.*b4j/Files.* modules

This will extract the assets files.

 

[aeric]

You can use a JDK tool named jimage to list and extract the contents of the modules file.

Example:

%j%\jimage extract --include regex:.*b4j/Files.* modules

This will extract the assets files.

In which path should I execute this command?

 

[Erel]

%j% = java\bin folder

modules = the actual modules file.

You should run it in: <project>\Objects\temp\build\lib

 

[aeric]

%j% = java\bin folder

modules = the actual modules file.

You should run it in: <project>\Objects\temp\build\lib

I got:

C:\B4X\Development\Web API Client 1.05\B4J\Objects\temp\build\lib>%j%\jimage extract --include regex:.*b4j/Files.* modules
The system cannot find the path specified.

C:\B4X\Development\Web API Client 1.05\B4J\Objects\temp\build\lib>

 

[peacemaker]

%j%

It needs to replace somehow by full path to Java\bin where "jimage" utility must be...

 

[Erel]

It needs to replace somehow by full path to Java\bin where "jimage" unility must be...

True. Sorry for the confusion. This is just an environmental variable that I use for Java.

 

[aeric]

C:\Java\jdk-14.0.1\bin\jimage extract --include regex:.*b4j/Files.* modules

 

[peacemaker]

jimage extract --include regex:.*b4j/Files.* modules

So, it's just asset files, no any code binaries.

 

[Erel]

The compiled classes are also there. I haven't tried to extract them, but expect it to work.

 

[aeric]

So, it's just asset files, no any code binaries.

You can use Java Decompiler or similar tool to extract Java classes from .jar file but I am not sure any tool can be use to extract them from modules file.

 

[teddybear]

You can use Java Decompiler or similar tool to extract Java classes from .jar file but I am not sure any tool can be use to extract them from modules file.

As Erel said, the compiled classes are also there. just remove the restriction -- include regex:* b4j/Files.*

 

[aeric]

As Erel said, the compiled classes are also there. just remove the restriction -- include regex:* b4j/Files.*

Thanks.
So for my case is:

C:\B4X\Development\Web API Client 1.05\B4J\Objects\temp\build\lib>C:\Java\jdk-14.0.1\bin\jimage extract modules