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After installing the bunch of IDE-updates I got today the tooltip showing at mouse hover above a collapsed part of code contains only the line numbers (gutter) but no code. I recognized it hovering a per default collapsed part of javadoc and could copy that behavior also at collapsed methods Product Version = NetBeans IDE 6.9 (Build 201006101454) Operating System = Windows 7 version 6.1 running on amd64 Java; VM; Vendor = 1.6.0_16 Runtime = Java HotSpot(TM) 64-Bit Server VM 14.2-b01
I can reproduce it for Ubuntu too as well at 6.9.1.
*** This bug has been marked as a duplicate of bug 189233 ***