maven compilation error: duplicate classes

Question

In my maven2 project I have a directory ${basedir}/autogen that contains some autogenerated source code files produced by wsdl2java.

When r

Answer 1

I had the exact same issue. In my case the problem was that I called maven with -f=./pom.xml. I have no idea why this leads to a different result (would be nice if someone can explain) but maybe good to know if someone else has the same issue.

Answer 2

I my case helped this:

<!-- https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api -->
<dependency>
    <groupId>javax.annotation</groupId>
    <artifactId>javax.annotation-api</artifactId>
    <version>1.3.2</version>
</dependency>

Answer 3

I resolve it by remove generateAsync from my pom.xml the the GWT plugin will look like

                <groupId>org.codehaus.mojo</groupId>
                <artifactId>gwt-maven-plugin</artifactId>
                <version>${gwtVersion}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>test</goal>
                            <!-- <goal>i18n</goal> -->

                        </goals>
                    </execution>
                </executions>

Answer 4

Its hard to change default maven behaviour, i think its better to go with it - you could generate those files with maven wsdl2java-maven-plugin