anchor.diff:  A property or constructor-arg value can be set using expressions as shown below.
   
   [source,xml,indent=0]
  -[subs="verbatim,quotes"]
  +[subs="verbatim"]
   ----
   	<bean id="numberGuess" class="org.spring.samples.NumberGuess">
   		<property name="randomNumber" value="#{ T(java.lang.Math).random() * 100.0 }"/>
  
positive.code: You can also refer to other bean properties by name, for example.
  
  [source,xml,indent=0]
  [subs="verbatim,quotes"]
  ----
  	<bean id="numberGuess" class="org.spring.samples.NumberGuess">
  		<property name="randomNumber" value="#{ T(java.lang.Math).random() * 100.0 }"/>
  
negative.code: symbol in this context.
  
  [source,xml,indent=0]
  [subs="verbatim"]
  ----
  	<bean id="taxCalculator" class="org.spring.samples.TaxCalculator">
  		<property name="defaultLocale" value="#{ systemProperties['user.region'] }"/>
  