added missing setter method for the "valueSeparator" property (SPR-7429)

org.springframework.beans/src/main/java/org/springframework/beans/factory/config/PropertyPlaceholderConfigurer.java

@@ -140,6 +140,7 @@ public class PropertyPlaceholderConfigurer extends PropertyResourceConfigurer
 
 	private BeanFactory beanFactory;
 
+
 	/**
 	 * Set the prefix that a placeholder string starts with.
 	 * The default is "${".
@@ -158,6 +159,16 @@ public class PropertyPlaceholderConfigurer extends PropertyResourceConfigurer
 		this.placeholderSuffix = placeholderSuffix;
 	}
 
+	/**
+	 * Specify the separating character between the placeholder variable
+	 * and the associated default value, or <code>null</code> if no such
+	 * special character should be processed as a value separator.
+	 * The default is ":".
+	 */
+	public void setValueSeparator(String valueSeparator) {
+		this.valueSeparator = valueSeparator;
+	}
+
 	/**
 	 * Set the system property mode by the name of the corresponding constant,
 	 * e.g. "SYSTEM_PROPERTIES_MODE_OVERRIDE".
@@ -255,6 +266,7 @@ public class PropertyPlaceholderConfigurer extends PropertyResourceConfigurer
 		this.beanFactory = beanFactory;
 	}
 
+
 	@Override
 	protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props)
 			throws BeansException {