Some definitions for JSP and HTML editor configurations (see in org.eclipse.wst.sse.ui.editorConfiguration) are outdated for WTP 3.5

For example, we're using the following definition which is not exists for HTML/JSP Structured Editors anymore:

<provisionalConfiguration
    type="structuredtextfoldingprovider"
    class="org.eclipse.wst.xml.ui.internal.projection.StructuredTextFoldingProviderJSP"
    target="org.eclipse.jst.jsp.core.jspsource"/>

Also, there is no org.eclipse.wst.xml.ui.internal.projection.StructuredTextFoldingProviderJSP class anymore.

It looks like this definition is replaced by:

<provisionalConfiguration
    type="foldingstrategy"
    class="org.eclipse.wst.xml.ui.internal.projection.XMLFoldingStrategy"
    target="org.eclipse.jst.jsp.core.jspsource" />