Interface freeze when click history changeset or user

[pavel.tyslyatsky@…]

1. Open JOSM and load some area
2. Select any item
3. Click Ctrl+H
4. Click revision or user

Result: interface freeze (no hotkeys, all windows gray - no redraw)
Expected: changesets and users opened in browser as before

[Don-vip]

Please provide all missing information as per newticket

[pavel.tyslyatsky@…]

What steps will reproduce the problem?

1. Open JOSM and load some area
2. Select any item
3. Click Ctrl+H
4. Click revision or user

What is the expected result?

Changesets and users opened in browser as before.

What happens instead?

Interface freeze (no hotkeys, all windows gray - no redraw).

Please provide any additional information below. Attach a screenshot if possible.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-03-13 01:17:21 +0100 (Sun, 13 Mar 2016)
Build-Date:2016-03-13 02:35:00
Revision:9979
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9979 en) Linux Ubuntu 15.10
Memory Usage: 875 MB / 3543 MB (421 MB allocated, but free)
Java version: 1.8.0_66-internal-b17, Oracle Corporation, OpenJDK 64-Bit Server VM
VM arguments: [-Djosm.restart=true, -Djava.net.useSystemProxies=true]
Dataset consistency test: No problems found

Plugins:
- CommandLine (31927)
- PicLayer (31895)
- apache-commons (31895)
- buildings_tools (31895)
- conflation (0.1.9)
- editgpx (31772)
- ejml (31895)
- geotools (31895)
- imagery_offset_db (32046)
- jts (31772)
- opendata (32139)
- reltoolbox (31895)
- reverter (32005)
- turnrestrictions (31895)
- undelete (31895)
- utilsplugin2 (32099)