After deploying a Magnolia application on Weblogic 10.3 I keep getting the following error on the logs.
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<Mar 24, 2010 7:30:22 AM EDT> <Error> <HTTP> <BEA-101020> <[weblogic.servlet.internal.WebAppServletContext@7a279c - appName: 'MagnoliaPublicWebApp', name: 'MagnoliaPublicWebApp.war', context-path: '', spec-version: '2.5'] Servlet failed with Exception
java.lang.IllegalStateException: strict servlet API: cannot call getOutputStream() after getWriter()
at weblogic.servlet.internal.ServletResponseImpl.getOutputStream(ServletResponseImpl.java:281)
at info.magnolia.module.cache.filter.GZipFilter.doFilter(GZipFilter.java:106)
at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:62)
at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:82)
at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:84)
Truncated. see log file for complete stacktrace
>
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The error doesn't stop the application from running but I'm afraid of what could happen if this keeps happening.

Thanks in advance.
Dixon