[NETBEANS-169] Weird visual artifact on the editor window

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 8.2
• Component/s: editor - Other
• Labels: Java9-IDE

Environment

OS:
Linux X 4.9.0-4-amd64 #1 SMP Debian 4.9.51-1 (2017-09-28) x86_64 GNU/Linux

Java:
openjdk version "1.8.0_151"
OpenJDK Runtime Environment (build 1.8.0_151-8u151-b12-1~deb9u1-b12)
OpenJDK 64-Bit Server VM (build 25.151-b12, mixed mode)

IDE:
Product Version: NetBeans IDE 8.2 (Build 201705191307)
Updates: NetBeans IDE is updated to version NetBeans 8.2 Patch 2
Java: 1.8.0_151; OpenJDK 64-Bit Server VM 25.151-b12
Runtime: OpenJDK Runtime Environment 1.8.0_151-8u151-b12-1~deb9u1-b12
System: Linux version 4.9.0-4-amd64 running on amd64; UTF-8; es_ES (nb)
User directory: /home/antonio/.netbeans/8.2
Cache directory: /home/antonio/.cache/netbeans/8.2

With installed XML Tools plugin:
Version: 6.10 Source: XML PACK
Plugin Description
XML Tools.

• Assignee: Antonio Vieiro
• Reporter: Antonio Vieiro
• Created: 26/Nov/17 05:29
• Updated: 01/Mar/18 11:17
• Resolved: 13/Dec/17 08:56

Description

While scrolling a weird artifact appears on the editor window, blocking a part of the file. Seems to be some sort of misplaced popup window.

I think I can reproduce it as follows:

• Close all windows.
• Open a medium sized XML File.
• Without clicking on it, just scroll down through the file, the pop-up window will appear on the top-left area of the editor.

I'm attaching a partial screenshot with the popup window.