Skip to content
master
Go to file
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 

README.md

HeapUnit

Test library to introspecting your Java heap via heap dumps.

HeapUnit can

  • capture heap dump of own JVM
  • scan content of dump
  • reconstruct Java objects from heap dump

Example

Code snippet below dumps TCP Socket instances found in heap

HeapImage hi = HeapUnit.captureHeap();
	
for(HeapInstance i: hi.instances(SocketImpl.class)) {
	// fd field in SocketImpl class is nullified when socket gets closed
	boolean open = i.value("fd") != null;
	System.out.println(i.rehydrate() + (open ? " - open" : " - closed"));
}

Full source is here

Maven artifact

HeapUnit and dependencies is available in Maven Central Repo

<dependency>
    <groupId>org.gridkit.heapunit</groupId>
    <artifactId>heapunit</artifactId>
    <version>0.2</version>
</dependency>

About

Heap introspection for test puposes

Topics

Resources

License

Languages

You can’t perform that action at this time.