How can I tell jaxb / Maven to generate multiple schema packages?
java, jaxb, maven-2, schema, xsd
Solution
I had to specify different `generateDirectory` (without this, the plugin was considering that files were up to date and wasn't generating anything during the second execution). And I recommend to follow the `target/generated-sources/<tool>` convention for generated sources so that they will be imported in your favorite IDE automatically. I also recommend to declare several `execution` instead of declaring the plugin twice (and to move the `configuration` inside each `execution` element):
<plugin>
<groupId>org.jvnet.jaxb2.maven2</groupId>
<artifactId>maven-jaxb2-plugin</artifactId>
<version>0.7.1</version>
<executions>
<execution>
<id>schema1-generate</id>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<schemaDirectory>src/main/resources/dir1</schemaDirectory>
<schemaIncludes>
<include>shiporder.xsd</include>
</schemaIncludes>
<generatePackage>com.stackoverflow.package1</generatePackage>
<generateDirectory>${project.build.directory}/generated-sources/xjc1</generateDirectory>
</configuration>
</execution>
<execution>
<id>schema2-generate</id>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<schemaDirectory>src/main/resources/dir2</schemaDirectory>
<schemaIncludes>
<include>books.xsd</include>
</schemaIncludes>
<generatePackage>com.stackoverflow.package2</generatePackage>
<generateDirectory>${project.build.directory}/generated-sources/xjc2</generateDirectory>
</configuration>
</execution>
</executions>
</plugin>
With this setup, I get the following result after a `mvn clean compile`
$ tree target/
target/
├── classes
│ ├── com
│ │ └── stackoverflow
│ │ ├── App.class
│ │ ├── package1
│ │ │ ├── ObjectFactory.class
│ │ │ ├── Shiporder.class
│ │ │ ├── Shiporder$Item.class
│ │ │ └── Shiporder$Shipto.class
│ │ └── package2
│ │ ├── BookForm.class
│ │ ├── BooksForm.class
│ │ ├── ObjectFactory.class
│ │ └── package-info.class
│ ├── dir1
│ │ └── shiporder.xsd
│ └── dir2
│ └── books.xsd
└── generated-sources
├── xjc
│ └── META-INF
│ └── sun-jaxb.episode
├── xjc1
│ └── com
│ └── stackoverflow
│ └── package1
│ ├── ObjectFactory.java
│ └── Shiporder.java
└── xjc2
└── com
└── stackoverflow
└── package2
├── BookForm.java
├── BooksForm.java
├── ObjectFactory.java
└── package-info.java
Which seems to be the expected result.
Problem
Example: ``` </plugin> <plugin> <groupId>org.jvnet.jaxb2.maven2</groupId> <artifactId>maven-jaxb2-plugin</artifactId> <version>0.7.1</version> <executions> <execution> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <schemaDirectory>src/main/resources/dir1</schemaDirectory> <schemaIncludes> <include>schema1.xsd</include> </schemaIncludes> <generatePackage>schema1.package</generatePackage> </configuration> </plugin> <plugin> <groupId>org.jvnet.jaxb2.maven2</groupId> <artifactId>maven-jaxb2-plugin</artifactId> <version>0.7.1</version> <executions> <execution> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <schemaDirectory>src/main/resources/dir2</schemaDirectory> <schemaIncludes> <include>schema2.xsd</include> </schemaIncludes> <generatePackage>schema2.package</generatePackage> </configuration> </plugin> </plugins> ``` What happened: Maven executes the the first plugin. Then deletes the target folder and creates the second package, which then is visible. I tried to set target/somedir1 for the first configuration and target/somedir2 for the second configuration. But the behavior does not not change? Any ideas? I do not want to generate the packages directly in the src/main/java folder, because these packages are genereated and should not be mixed with manual created classes.