Mirur is an Eclipse plugin (http://mirur.io/update-site/) to visualize Java objects while debugging.  No more using Arrays.toString()! The existing visual debugger in Eclipse does a .toString() on any object you select in the Variables view. For large arrays, this might mean hanging Eclipse. Plus, looking at a long list of values is generally useless.

Check out the code on Github - https://github.com/brandonborkholder/mirur.


Mirur uses OpenGL to create highly interactive plots — line and bar charts, histograms, 2-dimensional heatmaps, images, arbitrary shapes ...

Numeric Arrays
  • any native array, e.g. int[], boolean[]
  • arrays of Number, e.g. Double[], Float[]
  • arrays of AtomicLong and AtomicInteger
  • even collections of Number, e.g. List<Short>
  • sort in realtime, or get a histogram of values
  • java.awt.BufferedImage
  • any java.awt.Image
  • any javax.swing.Icon
  • any java.awt.Shape (drawn with vector rendering)
  • java.nio.ByteBuffer
  • java.nio.IntBuffer
  • java.nio.FloatBuffer
  • java.nio.DoubleBuffer
  • any java.nio.Buffer
  • 2-dimensional primitive arrays
  • short[][], float[][], ...
  • large (even up to 50MB) arrays transfered very quickly

This is an example of an active debug session using Mirur.

Try it now in Eclipse 3.7+
Install directly from http://mirur.io/update-site/ or from the Eclipse Marketplace