util

class ContextURLClassLoader extends URLClassLoader

The addURL method in URLClassLoader is protected.
The addURL method in URLClassLoader is protected. We subclass it to make this accessible. NOTE: This is copied from Spark's ExecutorURLClassLoader, which is private[spark].
class LRUCache[K, V] extends AnyRef

A convenience class to define a Least-Recently-Used Cache with a maximum size.
A convenience class to define a Least-Recently-Used Cache with a maximum size. The oldest entries by time of last access will be removed when the number of entries exceeds cacheSize. For definitions of cacheSize and loadingFactor, see the docs for java.util.LinkedHashMap

See also
LinkedHashMap
case class NoSuchBinaryException(appName: String) extends Exception with Product with Serializable
class StartJobSerializer extends JSerializer

Akka Serialization extension for StartJob message to accommodate large config values (>64KB)

object DateUtils
object JarUtils

A set of utilities for dynamically loading classes from a jar file, and saving the jar file.
object SSLContextFactory

Creates SSLContext based on configuration, the SSLContext is used for communication between the SJS web server and its clients.
Creates SSLContext based on configuration, the SSLContext is used for communication between the SJS web server and its clients.
If encryption is not activated in the configuration, then the default ssl context is used which falls back to un-encrypted communication.