Environment:
Product Version: NetBeans IDE Dev (Build 201312100002)
Java: 1.8.0-ea; Java HotSpot(TM) 64-Bit Server VM 25.0-b59
Runtime: Java(TM) SE Runtime Environment 1.8.0-ea-b117
System: Mac OS X version 10.8.5 running on x86_64; UTF-8; en_US (nb)

1. Open a Java project.
2. Add a new XML Document (anywhere).
3. Paste the following content:
<?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:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

   
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename" value="messages"/>
    </bean> 

    <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>

    <bean name="/springapp/hello.htm" class="springapp.web.InventoryController"/>
        <property name="productManager" ref="productManager"/>
    </bean> 

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>        
    </bean>            
</beans>


Expected result:
error detected at line 20.

Actual result:
The parser doesn't notify user of anything.