The Mem Ops BytesAllocatorAutoDefrag enables you to allocate smaller sections of a bigger byte array, and free them again. When freed, the BytesAllocatorAutoDefrag automatically defragments the free blocks of the bigger byte array.
Mem Ops is a small open source toolkit which provides tools for memory management for Java applications that need to allocate and deallocate byte arrays or objects at a rapid pace.
The JavaFX Accordion is a control which can contain several sections of content, each of which can be expanded and collapsed.
The Java Streams API tutorial has been updated a bit, including a video version of part of the material now.