CDT 9 removes support for different ASTCompletionNode proposals

Question

The changes introduced in CDT 9* (diff link) removes support for ASTCompletionNode's of different type than org.eclipse.cdt.core.dom.ast.ASTCompletionNode.

If a plugin adds a contribution and inserts completion proposals which implement a different IASTCompletionNode, (e.g. the ASTCompletionNode from the org.eclipse.cdt.core.lrparser, the following exception is thrown on Ctrl + Space:

java.lang.ClassCastException: org.eclipse.cdt.core.dom.lrparser.action.ASTCompletionNode cannot be cast to org.eclipse.cdt.core.dom.ast.ASTCompletionNode at org.eclipse.cdt.internal.ui.text.contentassist.DOMCompletionProposalComputer.computeCompletionProposals(DOMCompletionProposalComputer.java:165)

What workarround do I have in this situation?

Answer 1

As mentioned on the mailing list, the cast is unnecessary, and has been removed.