Jasper Reports with Maven - 如何指定要编译的Java版本？

Question

Is there any way I can specify which version of Java to use when compiling my .jrxml files with Jasper Reports in Maven (using jasperreports-maven-plugin)? I saw this blog post saying claiming that Jasper uses the " default virtual machine set in your computer " and not "same version of the maven-compiler-plugin". If I cannot change or guarantee the JAVA_HOME environment variable, how can I get Jasper to compile with Java6 ?

Here is a snippet from my pom.xml:

<plugins>
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>jasperreports-maven-plugin</artifactId>
        <version>1.0-beta-2</version>
        <configuration>
            <outputDirectory>${project.build.directory}/classes</outputDirectory>
        </configuration>
        <executions>
            <execution>
                <phase>compile</phase>
                <goals>
                    <goal>compile-reports</goal>
                </goals>
            </execution>
        </executions>
        <dependencies>
            <dependency>
                <groupId>net.sf.jasperreports</groupId>
                <artifactId>jasperreports</artifactId>
                <version>5.0.1</version>
            </dependency>
        </dependencies>
    </plugin>
    <plugin>
</plugins>

Looking on the Codehaus docs , there is a parameter you can use, but it doesn't say how to specify which Java version.

Thanks!

Answer 1

According to this issue the folllowing parameters can help you:

<configuration>
  ...
  <maven.compiler.source>1.6</maven.compiler.source>
  <maven.compiler.target>1.6</maven.compiler.target>
  <compiler>net.sf.jasperreports.engine.design.JRJdtCompiler</compiler>
  ...
</configuration>

1.0-beta-2, however, does not have these properties, so the later version is necessary. You can either use a snapshot plugin version from here , of build a plugin from source code yourself. As far as I can see, plugin code from trunk supports these parameters.