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  Encyclopedia of Keywords > Information Technology > Computers > Operating Systems > Virtual Machine > Jvm   Michael Charnine

Keywords and Sections
FIG
PREFERRED EMBODIMENT
COORDINATION
ORDER
SUBSET
FORMAT
SERVICES
REQUESTS
LOCK
COMPUTER
ENVIRONMENT
SOLARIS
SUN MICROSYSTEMS
TIME
INSTANCE
API
MATLAB
EMBODIMENT
PRESENT INVENTION
ACCESS
EJBS
DEVELOPERS
WEB APPLICATION
MACHINE
PORTABLE
PROGRAMMING LANGUAGES
PROGRAMMING LANGUAGE
INFORMATION
CDC
THREADS
THREAD
WEB
SERVLETS
APPLICATION
WEB BROWSER
TERRACOTTA
RUNTIME ENVIRONMENT
OBJECTS
INSTRUMENTED
LIMITED SUPPORT
MAIN METHOD
STACK
HEAP
OPERATING SYSTEM
SET
MEMORY USAGE
Review of Short Phrases and Links

    This Review contains major "Jvm"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. A JVM is installed in a Web browser in order to execute Java applets and server-side Java programs.
  2. The JVM is distributed along with a set of standard class libraries that implement the Java API (Application Programming Interface).
  3. The JVM is a software layer that converts Java intermediate language (bytecode) into machine language.
  4. JVM is basic run time environment for java applications.
  5. The JVM is "virtual" because it is generally implemented in software on top of a "real" hardware platform and operating system.

Fig

  1. The architecture of FIG. 6 supports multiple applications 222 - 228 (Java byte code classes) on one JVM 130 simultaneously.

Preferred Embodiment

  1. It will be appreciated that the preferred embodiment described herein is based primarily on modifications to the running of the JVM itself.

Coordination

  1. This assumes the same classes are available to GDB as to the JVM, which may require some coordination in the case of embedded systems.
  2. FIG. 13 illustrates a timing diagram of events occurring between the coordination of the first JVM 130a (on the left) and the second JVM 130b (on the right).
  3. FIG. 11 illustrates an example system 510 for coordination between a JVM 130 and native applications 516.

Order

  1. This is done in order to check whether the requested class belongs to the package which can be actually accessed (loaded into JVM in this specific case).
  2. In theory, this preserves the advatages of the JVM while decreasing the amount of work the JVM needs to do in order to efficiently execute programs.
  3. Therefore a JVM must exist for your platform in order to run Java programs.

Subset

  1. Because models written in ACL2 can be executed, the formal JVM model can run programs within the subset of the JVM supported.

Format

  1. Rather, the JVM knows of a class file format, which is a particular binary format.

Services

  1. JVMDI (Java Virtual Machine Debug Interface) is a low-level native interface that defines the services a JVM must provide for debugging.

Requests

  1. This security can be important in situations where only certain users of the JVM can make certain types of requests into the state of the virtual machine.
  2. On the left we show the number of requests and failed-over sessions for the case of JVM restart and microreboot, respectively.

Lock

  1. At step 416, JVM(I) then releases the write lock and class(N) is registered in the shared memory pool.
  2. The JCM 270 then forwards the address of the class to the requesting JVM when the lock is free.

Computer

  1. These bytecodes will run on any computer with a Java Virtual Machine (JVM) installed.

Environment

  1. Oracle8 i JVM inherits many of the security, reliability, and availability features of the Oracle8 i database, creating a very stable Java environment.

Solaris

  1. Java code is executed in a Java Virtual Machine (JVM), which is typically written in a language such as C for a specific platform such as Windows or Solaris.
  2. Eclipse is written in Java and there's a JVM out for Solaris, so I don't see how it won't run on Solaris.

Sun Microsystems

  1. A Java Virtual Machine (JVM), originally developed by Sun Microsystems, is a virtual machine that executes Java bytecode.

Time

  1. JVM 408 also includes a just in time (JIT) compiler 422 and an interpreter 424.
  2. Committed The amount of memory guaranteed to be available for use by the JVM. The amount of committed memory may change over time.

Instance

  1. Your private Tomcat server will run in its own private Java Virtual Machine (JVM) instance.
  2. Components within an instance communicate through the JVM™ using Java™ APIs.
  3. Use the "Show path to GC root" function to show where the JVM hangs on to the selected instance.

Api

  1. The CLDC specifies the capabilities of JVM, the base set of API for resource limited devices like pager and mobile phones.
  2. JavaCard consists of a JVM, an API for smart cards and a framework that provides system services for smart-card applications.

Matlab

  1. On Macintosh, MATLAB always uses the "A" (or the default) version of the JVM installed on the computer.

Embodiment

  1. FIG. 5 is a flow diagram illustrating a method 500 for collocating JSLEE, SIP Servlets, and J2EE in a single JVM according to an embodiment of the invention.

Present Invention

  1. Embodiments of the present invention can continue to process the test suite when the agent JVM fails.
  2. However, unlike conventional same VM mode testing, embodiments of the present invention can continue to process the test suite when the agent JVM 304 fails.
  3. The present invention provides a shared memory pool (SMP) into which a JVM and store and register a particular Java class.

Access

  1. The JVM can then access the shared Java class.
  2. Other users do not have access to you JVM, and their bugs can not affect your web site.
  3. The JCM 270 can then use the name table to respond to JVM initiated requests for access to particular Java classes.

Ejbs

  1. EJBs recover an order of magnitude faster than JVM restart, which explains why the width of the good T aw dip in the microreboot case is negligible.

Developers

  1. Since many developers have written JavaScript, Rhino is a natural fit for doing rapid application development and prototyping in the JVM.
  2. Thus, the JVM is becoming a polyglot platform, where developers can take advantage of different languages for different needs.

Web Application

  1. This is the legacy pattern, where there is only one instance of the Velocity engine in the JVM (or web application, depending) that is shared by all.
  2. If your web application is a quality one, the Private JVM can be run for long periods of time, providing the best performance.

Machine

  1. Compiled bytecode is a form of optimized machine code for the JVM; the interpreter is an implementation of the JVM.
  2. The byte code generated by the compiler can be interpreted by any JVM of any machine.

Portable

  1. There is no limitation as to where these memory areas must actually exist, making the JVM more portable and secure.

Programming Languages

  1. The difference is that Java bytecode can also be interpreted as well as compiled, but the JVM supports only Java, not multiple programming languages.
  2. It also promises, in the future, to provide universal debugging support for most programming languages for the JVM. Published May.

Programming Language

  1. To the JVM, there is no difference between a class file compiled from the Groovy language and one compiled from the Java programming language.
  2. Thus in the Java programming language, applications do not need to specifically request or release memory, rather this is controlled by the JVM itself.

Information

  1. The information is stored in a modified Java class file for access by the JVM and content producers in later executions that include the class file.
  2. Security in existing systems such as UNIX, Windows, and JVM. Fundamental access control and information flow concepts.
  3. The JVM uses this service in a standard way to gather whatever information it needs for the answer.

Cdc

  1. The CDC covers devices above the 512k size of memory for the JVM environment.

Threads

  1. The JVM also includes a heap 140, which is shared between all threads, and is used for storage of objects 145.
  2. In Java 2 releases prior to 1.3, the JVM uses its own threads library, known as greenThreads, to implement threads in the Java platform.
  3. Enter the "Java Memory Model", JSR 133 tries to explain the memory model in detail and show how the JVM deals with threads and the memory.

Thread

  1. Issue 2: The threads in which jvm and env are used and the thread that launches jvm couple tightly.
  2. In addition, users do not need to explicitly create a thread for JVM to run.

Web

  1. A JVM is also installed in a Web server to execute server-side Java programs.
  2. This configuration defines two memory spaces: one for the Web server and the Java plug-in, and the other for the JVM and the servlet container.
  3. JVM operated tag libraries provide a platform independent way of extending the capabilities of a web server.

Servlets

  1. Running more than one application within a JVM is now a common occurrence and this is especially so with Servlets.
  2. Servlets are used with web servers and run inside a Java Virtual Machine (JVM) on the server so these are safe and portable.
  3. Most servlet engines want to execute all servlets in a single JVM. Where that JVM itself executes can differ depending on the server, though.

Application

  1. J2EE development is complex and involves the services of an application server, web server and database as well as the standard JVM (Java Virtual Machine).
  2. Within an application marked as distributable, all requests that are part of a session must be handled by one Java Virtual Machine (JVM) at a time.
  3. In this environment, floating stacks must be disabled before the JVM, or any application that starts the JVM, is started.

Web Browser

  1. Java applets can run in a Web browser using a Java Virtual Machine (JVM), or in Sun's AppletViewer, a stand-alone tool for testing applets.

Terracotta

  1. While Terracotta allows you to make your objects shared across JVM, GridGain seems to be a more pure parallel computing type of environment.

Runtime Environment

  1. The Java Plug-in allows you to use a Java Runtime Environment (JRE) supplied by Sun Microsystems instead of the JVM implemented by the client Web browser.
  2. Java(TM) virtual machine (JVM) The part of the Java runtime environment responsible for interpreting bytecodes.
  3. However, its runtime environment is any JVM. The language syntax attempts to be Java-like, while making the form of the language much simpler.

Objects

  1. Microsoft Java Virtual Machine (JVM) is a platform-independent software engine which runs Java applets, applications, and COM objects.
  2. Groovy seemlessly integrates with all existing Java objects and libraries as it is compiled into Java bytecode and runs in a JVM.
  3. In Java, the programmer is free from such worries, as the JVM will perform automatic garbage collection of objects.

Instrumented

  1. In the 5.0 release, the Java virtual machine (JVM) is highly instrumented for monitoring and management.

Limited Support

  1. The JVM has a limited support for dynamically modifying existing classes and methods; this currently only works in a debugging enviroment.

Main Method

  1. The JVM will look for the main method only in the class whose name you have mentioned.
  2. If the target JVM is started with a custom launcher, the class name (or JAR file name) and the arguments to the main method will not be available.

Stack

  1. The JVM has a stack based architecture.
  2. When a new thread is launched, the Jvm 350 creates a new Java stack for the thread.

Heap

  1. JVM 306 may utilize memory to store, for example, Java stacks, a heap, and a method area to execute Java programs.
  2. Most Jvms 350 choose to have one method area and one heap, each of which is shared by allthreads running inside the Jvm 350.

Operating System

  1. Instead, a special computer program called the JVM, or Java Virtual Machine, is run by the operating system, which in turn runs the Java program.
  2. Each platform has installed a JVM that is specific to its operating system.
  3. JVM actually uses operating system and machine instructions to carry out the instructions it has been given.

Set

  1. To confirm that your PATH is correctly set up, check which Java compiler and JVM will be used.

Memory Usage

  1. If the JVM detects that the memory usage exceeds the collection usage threshold, it will set the CollectionUsageThresholdExceeded attribute to true.

Categories

  1. Information Technology > Computers > Operating Systems > Virtual Machine
  2. Bytecode
  3. Byte
  4. Class
  5. Information Technology > Computers > Software > Platform

Related Keywords

    * Accordance * Apis * Applet * Applets * Byte * Bytecode * Bytecodes * Bytecode Instructions * Byte Codes * Class * Classes * Classloaders * Class Libraries * Class Loader * Clr * Compiler * Compilers * Computer Architecture * Core Classes * Cvm * Executing * Execution * Execution Time * Garbage Collection * Groovy * Hardware * Implementation * Implementations * Instructions * Instruction Set * Interpreter * Jdk * Jit * Jit Compiler * Jni * Jre * Just-In-Time Compiler * Jvm Specification * Jython * Kvm * Language * Languages * Libraries * Machine Language * Memory * Memory Space * Method * Native Interface * Native Method * Net * Network Latency * Opcode * Oracle8 * Oracle9 * Platform * Platforms * Platform Independent * Process * Program * Programs * Runtime * Runtime System * Servlet * Small Devices * Specification * Specifications * Tomcat * Virtual Machine * Way
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  Originally created: April 04, 2011.
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