多行代码的java Javadoc格式问题

Question

我有以下Javadoc，它有多行代码：

     * <p>Usage example:
 * <code>
 *  ConfigurationProperty property = ConfigurationProperty.Builder
 *                                      .create()
 *                                      .withHotKey("testKey")
 *                                  .withRunnableContext("testContext")
 *                                  .withRunnableContextType("APPLICATION")
 *                                  .build();
 * </code>
 * 
 * The {@link ConfigurationProperty.Builder#withRunnableContextType(String type) method 
 * throws an {@link IllegalArgumentException} if the provided type is not supported in
 * {@link ConfigurationProperty#RUNNABLE_CONTEXT_TYPE}

我的问题是，代码在生成的Javadoc中没有以正确的缩进显示。以下是我在生成的Javadoc中看到的内容，没有任何缩进：

Immutable implementation of a ConfigurationProperty. This class is  
 immutable, and so is thread safe. An instance of the ConfigurationProperty
can be obtained by using the ConfigurationProperty.Builder 

Usage example: ConfigurationProperty property =    
ConfigurationProperty.Builder .create() .withHotKey("testKey")   
.withRunnableContext("testContext") .withRunnableContextType("APPLICATION")   
.build(); } The method throws an IllegalArgumentException if the provided 
type is not supported in ConfigurationProperty.RUNNABLE_CONTEXT_TYPE

如果我用pre标记替换代码，那么只会显示第一行代码。 为什么会这样。我该怎么解决这个问题？ 有没有关于如何纠正这个问题的想法

请告知

谢谢