Picking up Tomcat's Context.xml parameters via SpEL - spring

Question

Deploying war to Apache Tomcat 8 the following way.
Placing myApp.xml under $CATALINA_HOME/conf/[enginename]/[hostname]/
with the following contents:
<Context>
<Parameter name="myApp_configs" value="file:/the/path/to/configs/folder"
type="java.lang.String" override="false"/>
</Context>
B.t.w. I do not place any kind of Context.xml into war.
Then copying myApp.war to $CATALINA_HOME/webapps
This is my web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>service</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/beans.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>CXFServlet</servlet-name>
<display-name>CXF Servlet</display-name>
<servlet-class>
org.apache.cxf.transport.servlet.CXFServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CXFServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
And this way I try loading properties-file in beans.xml (referenced in web.xml above).
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd">
<!-- Imported resources for cxf -->
<import resource="classpath:META-INF/cxf/cxf.xml" />
<import resource="classpath:META-INF/cxf/cxf-extension-jaxrs-binding.xml" />
<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
<!--context:property-placeholder
location="#{contextParameters['myApp_configs']}/myApp.properties"/-->
<bean id="configurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location"
value="#{contextParameters['myApp_configs']}/myApp.properties"/>
</bean>
...other lines follow here...
</beans>
However I am getting following error upon beans loading:
Field or property 'contextParameters' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext'
Could you help me understand the error and propose a fix so that I can access Context-defined parameters?
P.S. I have not put here, but I also have some <Environment>-nodes in Context, and they are successfully accessible via JNDI in other places.

Answer 1

So as we were not able to solve the root cause - why contextParameters bean is not available, the following workaround (using ol' syntax) took place:
<bean id="myConfigsLocation"
class="org.springframework.web.context.support.ServletContextParameterFactoryBean">
<property name="initParamName" value="myApp_configs" />
</bean>
<context:property-placeholder
location="#{myConfigsLocation}/myApp.properties" />
And it worked successfully.