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Reference Scanner for Java
A lightweight profiler library for Sun's Java Runtime Environment

A library for Java
Inspect your running Java application from a web browser: Create heap snapshots and snapshot diffs. View and eliminate memory leaks. Analyze full object reference graphs.

Record method call graphs and auto-expand to bottlenecks. List methods by performance. Explore which code will really be executed by the threads.

A mouse click opens classes, fields and methods directly in the Eclipse editor panel if you have the Reference Scanner plugin installed.


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Usage / Screenshots :: How to start :: Features :: Download :: Buy :: IDE Plugins :: FAQ



Java Memory Leak - Frequently Asked Questions
Why doesn't my program release the memory? Why don't my objects get garbage-collected? - This are questions often raised in larger java projects. This site explains why such things happen, how you find and fix a memory leak and what you can typically do to avoid memory leaks from the beginning.
Read more ...

Java Applications - How to find Bottlenecks
Where is my application hanging now? Why does my program slow down? Do we have a deadlock? Or a multiuser problem? Our check list will help to find your bottleneck.
Read more ...

Reference Scanner
Usage / Screenshots

How to start

Feature Matrix

Download

Buy

IDE Plugins

Frequently Asked Questions


Memory Leaks
Java Memory Leak FAQ


Bottlenecks
How to find bottlenecks in Java applications


News
Jun 1, 2009
Reference Scanner 5.21 released
=> download


May 27, 2009
New IntelliJ-IDEA plugin
with support for IDEA 8x


Apr 05, 2009
Reference Scanner
with 64 bit support released


Sep 27, 2007
New Eclipse plugin
for Reference Scanner 5


Jun 20, 2006
Added new document
How to find bottlenecks in Java applications



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