'java.lang.IllegalArgumentException: Content type is not supported' Thrown for an XHTML Portal (Doc ID 1323866.1)

Last updated on JULY 08, 2022

Applies to:

Symptoms

When attempting to render an XHTML JSR portlet within an XHTML enabled portal (as documented in the section 'Enabling XHTML in a Portal' of the WLP 10.3.2 Portal Development Guide), the following IllegalArgumentException is thrown:

java.lang.IllegalArgumentException: Content type text/html is not supported for portlet <PORTLET NAME> for this request.
at com.bea.portlet.container.MimeResponseImpl.setContentType(MimeResponseImpl.java:198)
at javax.portlet.filter.RenderResponseWrapper.setContentType(RenderResponseWrapper.java:139)
at com.bea.portlet.container.MimeResponseDispatcherWrapper.setContentType(MimeResponseDispatcherWrapper.java:177)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:222)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.ServletStubImpl.execute(SerlvetStubImpl.java:222)
at weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.java:408)
...

Cause

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