When running the access log analyzer, it throws the following error:

Error parsing access_log.2012-07-03 at line 99 : Unable to find request date/tim
e in chunk before request.
--------------------------------------------------------------------------------

10.66.49.57 818x100x2 - [03/Jul/2012:13:38:27 +0800] "GET /s/620/1/3.0.2/_/downl
oad/batch/com.atlassian.gadgets.dashboard:gadget-dashboard-resources/com.atlassi
an.gadgets.dashboard:gadget-dashboard-resources.js HTTP/1.1" 200 4566 3 "http://
10.66.49.57:8010/secure/Dashboard.jspa" "Mozilla/5.0 (Windows; U; Windows NT 6.1
; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1064 Safari/532.5"
"1xdtf5a"
--------------------------------------------------------------------------------

Error parsing access_log.2012-07-03 at line 100 : Unable to find request date/ti
me in chunk before request.
--------------------------------------------------------------------------------

10.66.49.57 818x101x2 - [03/Jul/2012:13:38:27 +0800] "GET /s/620/1/5.6.8/_/downl
oad/batch/com.pyxis.greenhopper.jira:gh-globalkeyboardshortcuts/com.pyxis.greenh
opper.jira:gh-globalkeyboardshortcuts.js HTTP/1.1" 200 944 12 "http://10.66.49.5
7:8010/secure/Dashboard.jspa" "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) A
ppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1064 Safari/532.5" "1xdtf5a"

--------------------------------------------------------------------------------

Too many parse errors: 100
Unable to parse at least one file: analysis aborted.

The above is caused by the RequestLogParser.java:136 below:

private final static DateFormat DATE_FORMAT = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss");

This code will throw an exception in non-us OS system, eg, Chinese Windows7 system.

This code can be used as temporary fix:

private final static DateFormat DATE_FORMAT = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss", Locale.US);

All credits goes to our customer fukan for reporting this out