New Doclet

A new enhanced doclet (written by Gerald Boersma) is now available.

It has much more option than the legacy previous one.

You will find detailed instructions here.


An open source doclet is now available on github..

It's also available in Maven central for easy inclusion in any java projects.

  • Declare the nl.talsmasoftware.umldoclet.UMLDoclet class to be used by javadoc (will by default also delegate to Standard doclet, so all-in-one).
  • All customizable options will become documented on the github page before the 1.0.0 release.

Old legacy doclet

You can generate a PlantUML description for UML-class diagram out of Java-source. Only public fields and methods will be exported.

The jar for the doclet is available here: plantUmlDoclet.jar

The association are based only on field declaration and Javadoc-Tags in methods.

There are following Javadoc-Tags to describe associations, according to UMLGraph:
  • @note: can be used to add a note to a class
  • @assoc: Pattern: <cardinality> - <cardinality> <associated class> (no spaces)
  • @navassoc: Pattern: <cardinality> - <cardinality> <associated class> (no spaces)
  • @depend: Pattern: <cardinality> - <cardinality> <associated class> (no spaces)
  • @overrideAssoc: can be used to mark a field-declaration not to export its association.

For configuration following can be used:
  • createPackages: Default value is false
  • showPublicMethods: Default value is true
  • showPublicConstructors: Default value is true
  • showPublicFields: Default value is true

Ant-Script example

<target name="main">
<javadoc doclet="de.mallox.doclet.PlantUMLDoclet"
"-J-DdestinationFile=uml.txt -J-DcreatePackages=false -J-DshowPublicMethods=true -J-DshowPublicConstructors=false -J-DshowPublicFields=true"
<packageset dir="src">
<include name="**"/>

<java jar="plantuml.jar" fork="true" maxmemory="128m">
<arg value="uml.txt"/>

Image example

Source example

package demo;

class Controller {}
class EmbeddedAgent {}
class PowerManager {}

* @extends Controller
* @extends EmbeddedAgent
* @navassoc - - 1..* PowerManager
* @note this is a note
class SetTopController implements URLStreamHandler {
public String name;

int authorizationLevel;
void startUp() {}
void shutDown() {}
void connect() {}

/** @depend - friend - SetTopController */
class ChannelIterator {}

interface URLStreamHandler {
void OpenConnection();
void parseURL();
void setURL();
void toExternalForm();

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