ignoreUnresolvablePlaceholders not working - spring

Question

I am using ignoreUnresolvablePlaceholders in my spring context.
as below.
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:messaging.properties</value>
</list>
</property>
<property name="ignoreResourceNotFound" value="false" />
<property name="ignoreUnresolvablePlaceholders" value="true" />
</bean>
event setting ignoreUnresolvablePlaceholders to true its not ignoring my spring bean being injecting.
i am passing amq.topic= in property file for
<bean id="messageTopic1" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="${amq.topic}" />
</bean>
But its not ignoring this bean for being injecting.
below is my Spring-context.xml amd property file.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:messaging.properties</value>
</list>
</property>
<property name="ignoreResourceNotFound" value="false" />
<property name="ignoreUnresolvablePlaceholders" value="true" />
</bean>
<!-- Active MQ Broker Configuration Details -->
<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="${amq.url}" />
</bean>
<bean id="messageQueue1" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="${amq.queue}" />
</bean>
<bean id="messageTopic1" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="${amq.topic}" />
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>
<bean id="activeMQ" class="com.isc.common.messaging.AmqUtilityHelper">
<property name="destination" ref="messageQueue1" />
<property name="jmsTemplate" ref="jmsTemplate" />
</bean>
<!-- <bean id="activeMQ1" class="com.isc.common.messaging.AmqUtilityHelper">
<property name="destination" ref="messageTopic1" />
<property name="jmsTemplate" ref="jmsTemplate" />
</bean> -->
<bean id="messageBroker" class="com.isc.common.messaging.AmqUtilityHelper">
<property name="activeBroker" value="${active.broker}" />
</bean>
</beans>
And Below is the property file that i am loading.
#AMQ/Solace properties production:
# uncomment the borker to use
active.broker=activeMQ
#active.broker=solace
#active.broker=activeMQ
#AMQ Broker Properties
amq.url=failover:(tcp://localhost:61616)??initialReconnectDelay=2000&maxReconnectAttempts=5
amq.queue=messageQueue1
amq.topic=
#Solace Broker Properties
solace.url=smf://192.168.56.101:55555
solace.userName=spring_user#Solace_Spring_VPN
solace.passWord=spring_password
solace.jndiName=JNDI/CF/spring1
solace.queue=JNDI/Q/requests
#solace.topic=JNDI/topic1

Answer 1

By default, ApplicationContext implementations eagerly create and
configure all singleton beans as part of the initialization process.
Generally, this pre-instantiation is desirable, because errors in the
configuration or surrounding environment are discovered immediately,
as opposed to hours or even days later. When this behavior is not
desirable, you can prevent pre-instantiation of a singleton bean by
marking the bean definition as lazy-initialized. A lazy-initialized
bean tells the IoC container to create a bean instance when it is
first requested, rather than at startup.
Can you please try to lazily initialize your bean using below construct.
lazy-init="true"
<bean id="messageTopic1" class="org.apache.activemq.command.ActiveMQTopic"
lazy-init="true">
<constructor-arg value="${amq.topic}" />
</bean>