Incorrect javadoc at Mount class, function: getContentPath()

The following class: Mount
Has a method: getContentPath()
That has incorrect javadoc.

The javadoc states that this method will never return null, but when a mount does not have a contentPath then null is returned.

Solution1: update javadoc that it will return null when no contentPath is set
Solution2: return an empty string instead of null (also update javadoc) - this is more preferable because of regression

Its about the following code piece:
/**

• <p>
• Returns the content path for this {@link Mount} object. The content path is the absolute jcr path to the root site node content, for example
  * something like '/content/documents/myproject'. The {@link #getContentPath()} can be the same as {@link #getMountPoint()}, but
  * this is in general only for {@link Mount}

  's that have

  {@link #isMapped()} returning false. When the {@link Mount} does have
  * {@link #isMapped()}

  equal to true, the

  {@link #getContentPath()}

  can return a different path than

  {@link #getMountPoint()}

  .

• </p>
  *
• @return the content path for this {@link Mount}

  . It cannot be <code>null</code>
  */
  String getContentPath();