Thumbnails are not visible in BASE 3.15

[Nicklas Nordborg]

The spinning "loading" icon is displayed but the thumbnail image is not displayed. There are no error messages in the log file. Copying the image url to a new window reveals a stacktrace:

net.sf.basedb.core.Application.getSessionControl(Ljava/lang/String;Ljava/lang/String;)Lnet/sf/basedb/core/SessionControl;
Stacktrace 	

java.lang.NoSuchMethodError
...at net.sf.basedb.thumbnails.ThumbnailsServlet.doGet(ThumbnailsServlet.java:47)
...at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
...at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
...

The Application.getSessionControl(String, String) is one of the methods that was removed in ​http://base.thep.lu.se/ticket/2137 so we need to update our code to call the replacement method.

[Nicklas Nordborg]

In 5350:

Fixes #1127: Thumbnails are not visible in BASE 3.15

Updated to BASE 3.15 and changed the method call. Also changed the servlet-api.jar file to the one that is shipped with BASE 3.15.

[Nicklas Nordborg]

In 5352:

References #1127: Thumbnails are not visible in BASE 3.15

Updated README.