Typically, they interface with both the operating system (OS) and the hardware to give application-level programs access to devices in some standard fashion. (An up front warning: some types of device ...

See Using JConsole to Monitor Applications for additional details on using JConsole to set the java.util.logging level of a Java application. Adjusting the Logging Level via VisualVM VisualVM is ...

The sun.misc.Unsafe class was introduced in 2002 as a way for Java classes in the JDK to perform low-level operations. Its memory access methods, as the name of the class suggests, are unsafe and ...