makerbot/ReplicatorG — comment on commit 6b45801fad01e50edae256adc9b715ece9eb495e
File: src/replicatorg/plugin/toolpath/skeinforge/ConfigurationDialog.java line 44
By FarMcKon:

Weak references are weak! We theorize (but it's hard to test) that due to this, some threads got disappeared before their time (fod rest their souls) and caused RepG to crash. This likely will fix some random crashes when dialogs, skeinforge, or other GUI takes too long or gets killed unexpectedly.