Java Application "java.lang.OutOfMemoryError: Direct buffer memory"

Issue

• java.lang.OutOfMemoryError: Direct buffer memory in the JBoss server log or java.lang.OutOfMemoryError: Cannot reserve # bytes of direct buffer memory:

java.lang.OutOfMemoryError: Cannot reserve 16384 bytes of direct buffer memory (allocated: 3221211360, limit: 3221225472)
    at java.base/java.nio.Bits.reserveMemory(Bits.java:178)
    at java.base/java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:121)
    at java.base/java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:332)

• One of the slave machines gets disconnected from the Domain Controller and starts throwing this error:

[Host Controller] 16:36:41,136 ERROR [org.xnio.listener] (management I/O-2) XNIO001007: A channel event listener threw an exception: java.lang.OutOfMemoryError: Direct buffer memory