How can I make Tomcat swallow this line?? I tried all quoting combinations!
<liferay-ui:search-container-column-text name="howstheweather"
value="<liferay-ui:message key='<%=("Sun").equals(timeBean.today())?"sunny-day-msg":"take-umbrella-msg"%>'/>"
/>
Asking if there is any solution, not assessing changing to EL and JSLT
You cannot use jsp-tag in values of other jsp-tag. But the <liferay-ui:search-container-column-text .../>-Tag has a translate attribute. Hier the solution for you:
<liferay-ui:search-container-column-text name="howstheweather"
value='<%=("Sun").equals(timeBean.today())?"sunny-day-msg":"take-umbrella-msg"%>'
translate='true'
/>