Bug 280483. "A handler conflict occurred. This may disable some commands." warning on restart
Bug 285284. Removing comment end tag and adding it back leaves validation errors
Bug 241794. [validation] Errors when using JSP Expressions inside JavaScript code
Bug 303024. JSP tags in Javascript statements in JSPs show errors at wrong offsets
Bug 310347. Incorrect boundary checking in org.eclipse.wst.jsdt.web.core.javascript.JsTranslation#getProblems()