Package org.apache.ivy.util

Class MemoryUtil

java.lang.Object
org.apache.ivy.util.MemoryUtil
public final class MemoryUtil extends Object
Memory related utilities.

  • Method Details

    • sizeOf

      public static long sizeOf(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(String[] args) throws ClassNotFoundException
      Throws:
      ClassNotFoundException