bundles/org.apache.jasper.glassfish/src/org/apache/jasper/JspCompilationContext.java
public java.io.InputStream getResourceAsStream(String res)
           throws JasperException {
        return context.getResourceAsStream(canonicalURI(res));
    }
public java.io.InputStream getResourceAsStream(String res)
           throws JasperException {
        return context.getResourceAsStream(canonicalURI(res));
    }
Gets a resource as a stream, relative to the meanings of this
context's implementation.
@return a null if the resource cannot be found or represented
as an InputStream.