Our web application based on Struts 2 + Tiles framework starts to give
errors on some jsp pages if I try to use a newer Struts version than
6.3.0.2.
Exactly the same codebase works fine on previous Struts versions (the
only changes are in the pom file and concern the versions of
struts2-core, struts2-tiles-plugin, struts2-config-browser-plugin and
strutrs2-json-plugin).
On 6.6.0 the stacktrace has snippets like:
Caused by: org.apache.tiles.request.render.CannotRenderException:
java.io.IOException: JSPException including path 'xyz.jsp'.
at
org.apache.tiles.core.impl.BasicTilesContainer.render(BasicTilesContainer.java:395)
...
Caused by: java.io.IOException: java.io.IOException: JSPException
including path 'xyz.jsp'.
at
org.apache.tiles.request.servlet.ServletUtil.wrapServletException(ServletUtil.java:56)
at
org.apache.tiles.request.jsp.JspRequest.doInclude(JspRequest.java:118)
...
Caused by: java.lang.NullPointerException
at
org.apache.struts2.components.IteratorComponent.start(IteratorComponent.java:309)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:51)
where xyz is a path to a jsp file of ours.
Curiously, Struts 6.4.0 stacktrace for the very same page gives a
different error:
HTTP ERROR 500 Cannot find definition named 'nodeGradesView.page'
Caused by: org.apache.tiles.core.definition.NoSuchDefinitionException:
Cannot find definition named 'xyz.page'
at
org.apache.tiles.core.impl.mgmt.CachingTilesContainer.render(CachingTilesContainer.java:108)
...
where xyz.page is a tiles definition of the view that xyz.jsp would
belong to.
These errors are a bit cumbersome and have left as stuck at Struts
version 6.3.0.2.
Best regards
Heikki
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