Hangfire by Sergey Odinokov
JobRunr is a port of Hangfire in .NET to Java and could not have exist without Hangfire being a great example.
License: LGPL v3
ASM is used to read the byte code of the provided lambda and find the correct
arguments of the job to process in the background. These are then serialized to Json and stored in a
JavaCron by Ahmed AlSahaf
JavaCron was used as the basis for the Cron scheduling in JobRunr. It is a great and well-tested Cron parser.
cRonstrue by Brady Holt