NullPointerException when using the "Clear filter" function

[Nicklas Nordborg]

This seems to be a problem on all list pages. When using the "Clear filter" function (either via the "presets" drop-down or via the icon), the following error message is displayed:

Cannot invoke "net.sf.basedb.core.data.AnnotationTypeCategoryData.getItemSubtype()" 
because "this.subCategory" is null

java.lang.NullPointerException
...at ItemContext.applySubCategoryFilter(ItemContext.java:569)
...at ItemContext.removeAllPropertyFilters(ItemContext.java:1241)
...at net.sf.basedb.clients.web.Base.getAndSetCurrentContext(Base.java:712)
...at org.apache.jsp.admin.software.index_jsp._jspService(index_jsp.java:247)
...at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:67)
...at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
...at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
...at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:376)

[Nicklas Nordborg]

In 8371:

Fixes #2347: NullPointerException when using the "Clear filter" function