You can change java version by editing sourceCompatibility in build.gradle file.

Logging Level

• local: error, warn, info, debug
• dev: error, warn, info, debug
• prod: error, warn, info
• test: error, warn, info, debug

Logging Appender

• local: console, file(+access log)
• dev: file(+access log)
• prod: file(+access log)
• test: console