Harry Chan created WW-4263:
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Summary: DefaultHttpHeaders.compareIfModifiedSince() throws
ParseException when the locale of the web browser is different to the server
Key: WW-4263
URL: https://issues.apache.org/jira/browse/WW-4263
Project: Struts 2
Issue Type: Bug
Components: Plugin - REST
Affects Versions: 2.3.15.3
Reporter: Harry Chan
I am using the RESTFul plugin and this exception is thrown when I visit the
page enabled *Caching*.
When I trigger an action from my web browser, it pass the *If-Modified-Since*
attribute to server side and the locale of it date format is in *en* - *Wed, 18
Dec 2013 16:00:00 GMT*.
Then, in the server side, the *DefaultHttpHeaders* uses the method
*compareIfModifiedSince()* to check if it should return the cached data.
However, I found that the *DefaultHttpHeaders.compareIfModifiedSince()* would
use the *default locale* of the server for parsing the *If-Modified-Since*
input which causes ParseException as the locale of the server is NOT same as
the web browser I used.
{code}
17:24:20.915 [qtp5416428-21] DEBUG o.a.struts2.rest.DefaultHttpHeaders.debug()
[8139ea3e-f463-42fa-9642-ecc2b44b7a21][] - Got error parsing If-Modified-Since
header value [Wed, 18 Dec 2013 16:00:00 GMT] as [EEE, dd MMM yyyy HH:mm:ss zzz]!
java.text.ParseException: Unparseable date: "Wed, 18 Dec 2013 16:00:00 GMT"
at java.text.DateFormat.parse(DateFormat.java:357) ~[na:1.7.0_09]
at
org.apache.struts2.rest.DefaultHttpHeaders.compareIfModifiedSince(DefaultHttpHeaders.java:165)
[struts2-rest-plugin-2.3.15.3.jar:2.3.15.3]
at
org.apache.struts2.rest.DefaultHttpHeaders.apply(DefaultHttpHeaders.java:149)
[struts2-rest-plugin-2.3.15.3.jar:2.3.15.3]
at
org.apache.struts2.rest.RestActionInvocation.processResult(RestActionInvocation.java:190)
[struts2-rest-plugin-2.3.15.3.jar:2.3.15.3]
at
org.apache.struts2.rest.RestActionInvocation.invoke(RestActionInvocation.java:145)
[struts2-rest-plugin-2.3.15.3.jar:2.3.15.3]
at
com.opensymphony.xwork2.DefaultActionProxy.execute(DefaultActionProxy.java:147)
[xwork-core-2.3.15.3.jar:2.3.15.3]
at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
[struts2-core-2.3.15.3.jar:2.3.15.3]
...
{code}
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