zoukankan      html  css  js  c++  java
  • Java Method Area

    ref

    http://blog.csdn.net/huangfan322/article/details/53220169

     https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-2.html

    2.5.4. Method Area

    The Java Virtual Machine has a method area that is shared among all Java Virtual Machine threads. The method area is analogous to the storage area for compiled code of a conventional language or analogous to the "text" segment in an operating system process. It stores per-class structures such as the run-time constant pool, field and method data, and the code for methods and constructors, including the special methods (§2.9) used in class and instance initialization and interface initialization.

    The method area is created on virtual machine start-up. Although the method area is logically part of the heap, simple implementations may choose not to either garbage collect or compact it. This version of the Java Virtual Machine specification does not mandate the location of the method area or the policies used to manage compiled code. The method area may be of a fixed size or may be expanded as required by the computation and may be contracted if a larger method area becomes unnecessary. The memory for the method area does not need to be contiguous.

    A Java Virtual Machine implementation may provide the programmer or the user control over the initial size of the method area, as well as, in the case of a varying-size method area, control over the maximum and minimum method area size.

    The following exceptional condition is associated with the method area:

    • If memory in the method area cannot be made available to satisfy an allocation request, the Java Virtual Machine throws an OutOfMemoryError.

  • 相关阅读:
    DevExpress- GridControl数据导出到EXCEL
    DevExpress 如何获取Repository Item的值
    ae 栅格处理异常
    VS界面控件大小调整
    C++/cli中swtich处理命令行接收到的关键字
    Civil 3d设置横断面图样式
    反射学习
    System.Diagnostics.Process启动Civil 3D及AutoCAD
    Lisp小程序,大作用,不该放弃!
    设置曲面样式之流域
  • 原文地址:https://www.cnblogs.com/diegodu/p/8465023.html
Copyright © 2011-2022 走看看