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+Title: Cross JDK project files with Maven (continued)
+Date: 2008-03-21
+Lang: en
+
+In [my last blog entry](|filename|./cross-jdk-project-files.md) I described the steps for cross-JDK Eclipse project files.
+
+Unfortunately there's more Eclipse internals involved when dealing with cross platform issues. It turns out that the correct JRE_CONTAINER for Linux and Windows is
+
+    org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk
+
+but that doesn't work for Mac where it needs to be like this:
+
+    org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.launching.macosx.MacOSXType/jdk
+
+So for real cross platform project files you need to put the launcher type into a property and override that in a mac specific profile. The final pom will look similar to this
+
+    :::xml
+    <project ...>
+        <properties>
+            <vmtype>org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType</vmtype>
+            <jdkName>jdk1.4</jdkName>
+        </properties>
+
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-eclipse-plugin</artifactId>
+            <version>2.5</version>
+            <configuration>
+                <classpathContainers>
+                    <classpathContainer>
+                        org.eclipse.jdt.launching.JRE_CONTAINER/${vmtype}/${jdkName}
+                    </classpathContainer>
+                </classpathContainers>
+            </configuration>
+        </plugin>
+
+        <profiles>
+            <profile>
+                <id>mac</id>
+                <activation>
+                    <os>
+                        <family>mac</family>
+                    </os>
+                </activation>
+                <properties>
+                    <vmtype>org.eclipse.jdt.internal.launching.macosx.MacOSXType</vmtype>
+                </properties>
+            </profile>
+        </profiles>
+    </project>