Anchor definition in the source code:
jdk/src/java.desktop/share/classes/javax/swing/JTree.java, line 44

<a name="jtree_description"></a>

javadoc generates links of the following form:
<div class="block"><a name="../../../javax/swing/jtree_description"></a>
causing warning "<a> cannot copy name attribute to id":


api/java/io/class-use/Serializable.html
line 11655 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/java/lang/class-use/SuppressWarnings.html
line 3884 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/java/awt/image/class-use/ImageObserver.html
line 929 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/java/awt/class-use/Container.html
line 1202 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/java/awt/class-use/MenuContainer.html
line 762 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/java/awt/class-use/Component.html
line 2119 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/javax/swing/class-use/JComponent.html
line 548 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/javax/swing/class-use/Scrollable.html
line 196 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)

api/javax/accessibility/class-use/Accessible.html
line 1011 column 20 - Warning: <a> cannot copy name attribute to id
0 error(s), 1 warning(s)


If there exists some workaround to fix the warnings (just fixing the initial source file) please let me know.