MemoryUtil
Date: 2014-12-13

org.apache.ivy.util

## Class MemoryUtil

- java.lang.Object
- - org.apache.ivy.util.MemoryUtil

-     public final class MemoryUtil
      extends java.lang.Object

  Memory related utilities.

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static long` | `getUsedMemory()` Returns the currently used memory, after calling garbage collector and waiting enough to get maximal chance it is actually called.
    `static void` | `main(java.lang.String[] args)`
    `static long` | `sizeOf(java.lang.Class clazz)` Returns the approximate size of a default instance of the given class.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Method Detail

    - #### sizeOf

          public static long sizeOf(java.lang.Class clazz)

      Returns the approximate size of a default instance of the given class.
      Parameters:
        `clazz` - the class to evaluate.
      Returns:
        the estimated size of instance, in bytes.

    - #### getUsedMemory

          public static long getUsedMemory()

      Returns the currently used memory, after calling garbage collector and waiting enough to get maximal chance it is actually called. But since `Runtime.gc()` is only advisory, results returned by this method should be treated as rough approximation only.
      Returns:
        the currently used memory, in bytes.

    - #### main

          public static void main(java.lang.String[] args)
                           throws java.lang.ClassNotFoundException

      Throws:
        `java.lang.ClassNotFoundException`