Update org.eclipse.jdt.core.compiler.ecj

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Hi,
i use the querydsl-apt lib with a springboot application and vaadin 8 for frontend. In vaadin 8 they have updated to the last gwt release and the gwt lib uses some jdt libs.
So in some cases gwt needs to compile a widgetset. But this is not possible because this lib uses an older jdt plugin and breaks the gwt compiler. Current workaround, after some hours of research, is to exclude the ecj lib via maven. This seems to work in my case.
Is it possible to update the ecj version to the actual version?