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Bug
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    Resolution: Fixed
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Major
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    4.0M11
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    None
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    None
 
Encountered while saving the configuration of a site in the admin workspace, without any Solr server up.
I guess I got the error because I had no Solr server but still we should avoid this NPE.
At line 109 (see stacktrace), in my case httpresponse is null.
Stacktrace: 
java.lang.NullPointerException 
    at org.ametys.web.cache.CacheHelper.testWS(CacheHelper.java:109) 
    at org.ametys.web.cache.CacheHelper.testWS(CacheHelper.java:81) 
    at org.ametys.web.cache.CacheHelper.invalidateCache(CacheHelper.java:250) 
    at org.ametys.web.repository.site.SiteDAO.clearCache(SiteDAO.java:480) 
    at org.ametys.web.repository.site.SiteDAO.configureSite(SiteDAO.java:565) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:483) 
    at org.ametys.core.ui.ExecuteClientCallsAction._executeMethod(ExecuteClientCallsAction.java:133) 
    at org.ametys.core.ui.ExecuteClientCallsAction.act(ExecuteClientCallsAction.java:120) 
[...]