slogger | Ruby library to help work | Data Migration library

I've got a spring-boot web application that's mostly working; my DataSource is properly configured by an external application.properties file.

Now I want to add properties to that file to help me instantiate and configure two instances of a class in my app. I have a APNsFactory that I currently instantiate manually and configure using JNDI, but I want to get away from JNDI calls:

I'm working on an app using Here API Android Premium and want to show users a list of languages to select from for use with Map.setMapSecondaryDisplayLanguage() from Class Map.

The same Map class has a function to provide a list of all supported languages Map.getSupportedMapDisplayLanguages(), which should be perfect.

I'm writing a small serial proxy so that I can eavesdrop on the conversation between a legacy application and the device it's intended to control.

My plan is to:

1. Intercept the application's commands using a Virtual Serial Port that sends Serial packets to a TCP port
2. Relay those commands to the device
3. Relay the device's responses back to the application.

It's working reliably so far when I use only my test commands. However, it's failing intermittently when I initiate communications using the application. Apparently the app sends a 'wake-up ping' over the wire to verify a successful connection to the device. That 'ping' comes as a single byte value of ChrW(3), to which the device responds => (success). This works well as long as the input buffer is clear before I attempt to read it.

That's the intermittent part. Sometimes that ChrW(3) gets stuck in there, sometimes it doesn't. Subsequent calls just pile on top of it. On the other hand, my test commands always clear out. It just seems to be something about that low-order character.

Here's my code, pretty simple I'd think:

I am developing a java application which communicates with lots of devices. For each device I need to create a different log file to log it's communication with device. This is the wrapper class I developed. It creates two log files but the data is written to only the first one. The second file is created but nothing is written to it. The output that should go to second file goes to console. If I uncomment createRootLogger() in constructor nothing is written to both the files, everything goes to console. I have gone through log4j2 documentation but it is poorly written with very few code samples. Here is my wrapper class, where is the error? I am using log4j-api-2.9.0.jar and log4j-core-2.9.0.jar.