| ------ |
| Compiling Sources Using A Different JDK |
| ------ |
| Edwin Punzalan |
| ------ |
| 05 July 2006 |
| ------ |
| |
| ~~ Licensed to the Apache Software Foundation (ASF) under one |
| ~~ or more contributor license agreements. See the NOTICE file |
| ~~ distributed with this work for additional information |
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| ~~ |
| ~~ http://www.apache.org/licenses/LICENSE-2.0 |
| ~~ |
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| ~~ under the License. |
| |
| ~~ NOTE: For help with the syntax of this file, see: |
| ~~ http://maven.apache.org/doxia/references/apt-format.html |
| |
| Compiling Sources Using A Different JDK |
| |
| The <<<compilerVersion>>> parameter can be used to specify the version of the |
| compiler that the plugin will use. However, you also need to set <<<fork>>> |
| to <<<true>>> for this to work. For example: |
| |
| +------- |
| <project> |
| [...] |
| <build> |
| [...] |
| <plugins> |
| <plugin> |
| <groupId>org.apache.maven.plugins</groupId> |
| <artifactId>maven-compiler-plugin</artifactId> |
| <version>${project.version}</version> |
| <configuration> |
| <verbose>true</verbose> |
| <fork>true</fork> |
| <executable><!-- path-to-javac --></executable> |
| <compilerVersion>1.3</compilerVersion> |
| </configuration> |
| </plugin> |
| </plugins> |
| [...] |
| </build> |
| [...] |
| </project> |
| +------- |
| |
| To avoid hard-coding a filesystem path for the executable, you can use a |
| property. For example: |
| |
| +------- |
| <executable>${JAVA_1_4_HOME}/bin/javac</executable> |
| +------- |
| |
| Each developer then defines this property in |
| {{{http://maven.apache.org/ref/current/maven-settings/settings.html}settings.xml}}, |
| or sets an environment variable, so that the build remains portable. |
| |
| +------- |
| <settings> |
| [...] |
| <profiles> |
| [...] |
| <profile> |
| <id>compiler</id> |
| <properties> |
| <JAVA_1_4_HOME>C:\Program Files\Java\j2sdk1.4.2_09</JAVA_1_4_HOME> |
| </properties> |
| </profile> |
| </profiles> |
| [...] |
| <activeProfiles> |
| <activeProfile>compiler</activeProfile> |
| </activeProfiles> |
| </settings> |
| +------- |
| |
| If you build with a different JDK, you may want to |
| {{{http://maven.apache.org/plugins/maven-jar-plugin/examples/manifest-customization.html} |
| customize}} the jar file manifest. |