How to encrypt passwords and use encrypted values in blueprint or spring xml files ?

Issue

• User is using fabric environment.
• Following way properties are fetched using source CLI command.

Karaf>source C:/fabricProfileProperties/custom_profile_env.properties
fabric:profile-edit --pid com.xxx.yyy/oracleAQ.url=${ORACLEAQ_URL} IMRProfile
fabric:profile-edit --pid com.xxx.yyy/oracleAQ.username=${ORACLEAQ_USERNAME} IMRProfile
fabric:profile-edit --pid com.xxx.yyy/oracleAQ.password=${ORACLEAQ_PASSWORD} IMRProfile

• User need to put encrypted password in the properties files.
• And then user need to use the password after decryption in blue print.

<bean id="oracleQueueCredentials"
        class="org.springframework.jms.connection.UserCredentialsConnectionFactoryAdapter">
        <property name="targetConnectionFactory" ref="connectionFactoryOracleAQQueue" />
        <property name="username" value="${oracleAQ.username}" />
        <property name="password" value="${oracleAQ.password}" />
    </bean> 

• Are there any example of encrypting the password from karaf console and insert them in property file.
• And how one can decrypt the same in the bean config.