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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18314 Multiple declarations of same taglib cause exception during validation Summary: Multiple declarations of same taglib cause exception during validation Product: Tomcat 4 Version: 4.1.18 Platform: All OS/Version: All Status: NEW Severity: Normal Priority: Other Component: Jasper 2 AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] If the same taglib is declared twice with the same prefix and uri the following exception occurs: org.apache.jasper.JasperException: <h3>jsp.error.tlv.invalid.page</h3><p>null: org.xml.sax.SAXParseException: Attribute "xmlns:c" was already specified for element "jsp:root".</p> at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:105) at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:430) at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:112) at org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:661) at org.apache.jasper.compiler.Validator.validate(Validator.java:613) We're experiencing this problem with our templating system in cases where it is using static includes and both the template and the included fragments use the same tag library (typically JSTL). This is not a problem with dynamic includes. It's possible to recreate the problem with a simple JSP: <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"; %> <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"; %> <html> <head><title>Test</title></head> <body> Test </body> </html> As far as we're aware there's nothing in the spec that says the same taglib can't be declared twice with the same prefix, and it should be possible to deduplicate to prevent the attribute being declared twice on jsp:root. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
