Class VirtualMachineError in Java

Class VirtualMachineError in Java

Class VirtualMachineError in Java

Java virtual machine is an abstract computer, on which all Java coding runs. Java often refers to a java programming language but actually Java has four distinct parts-

  • Java Coding
  • Java class files
  • Java virtual machine
  • Java APIs(Application Programming Interface)

The emerging infrastructure of smart devices and computer interconnected networks represents a whole new environment for software with an ecosystem where new challenges and new opportunities reside side by side.

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Java was originally designed for networks, hence it is suitable for networked environments due to its (Java’s architecture). Java provides a secure, robust, platform-independent program across networks that can run across various devices/computers.

VirtualMachine primary task
VirtualMachine primary task

The challenges and opportunity of Java development

  • Create a network-centric hardware environment for a wide range of devices (they may or may not always connected to the network). In general, a network has many different kinds of devices attached to it with diverse hardware architectures, operating systems etc.
  • Java provides a platform-independent coding. A Java program can run on a wide variety of computers. Unlike a code compiles and run for specific hardware and operating system. These kind of Java coding are easier and cheaper to develop, administrate and maintain.
  • Security- Even though networking is good. It is also a safe passage for hackers who can alter coding. The altered code can help a hacker to steal, destroy the information.
  • Java provides a customize degrees of security that prevent malicious code to be injected and cause system failures.
  • Java also has support for mobile objects. The transmission of code and state across networks. Java supports the object mobility via object serialization and Remote Method Invocation.
VirtualMachineError
Java’s three pillar- VirtualMachineError

Java Virtual machines primary task is to load a class file and execute the byte code the class file is having.

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How Virtual machine works
How Virtual machine works

VirtualMachineError is thrown from an application when the java virtual machine is broken or has run out of resources to continue its operation.

It is an abstract error type that acts as a superclass for a group of errors related to the Java Virtual Machine.The appropriate subclass of VirtualMachineError is thrown to indicate that the Java virtual machine has encountered an error.

The structure of the class VirtualMachineError is given as:


public class java.lang.VirtualMachineError extends java.lang.Error{
//constructor
public VirtualMachineError();//constructs an empty VirtualMachineError object that is an object with no message specified.
public VirtualMachineError(String message);//constructs an VirtualMachineError object with the message specified.
}

The class VirtualMachineError also inherits methods from class Object and Throwable.

From Object classFrom Throwable class
clone()fillInStackTrace()
getClass()getMessage()
notify()printStackTrace()
wait()printStackTrace(PrintWriter)
wait(long, int)getLocalizedMessage()
wait(long)printStackTrace(PrintStream)
equals(Object)
toString()
finalize()
hashCode()
notifyAll()

VirtualMachineError has the below features:

  • Synchronous Delivery
  • Asynchronous Delivery
  • Unchecked Exception

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