On 1 Aug 2011, at 21:18, Stuart McCulloch wrote: > On 1 Aug 2011, at 21:14, Marshall Schor wrote: > >> In our project we specify Java 5 (for backwards compatibility) and run Maven >> using Java 5, so we can catch errors where code inadvertently depends on >> methods >> not in Java 5 but rather, introduced in Java 6. Merely setting the Maven >> compile source and target to 1.5 doesn't catch these kinds of errors.
PS. you can use the animal sniffer plugin to catch them: http://mojo.codehaus.org/animal-sniffer-maven-plugin/usage.html which is useful when developing on platforms where a Java 5 JDK is hard to find ( unfortunately this wasn't enabled for the bnd / bundleplugin projects ) >> For example, in Java 6 a method was added to the String class for >> getBytes(...) >> which takes an argument of Charset. >> This method is not in Java 5. >> >> The Felix bundle (release 2.3.5) appears to use this very method, and, thus, >> requires Java 6 to run it, because after switching to 2.3.5, I see an >> exception >> with this traceback: >> >> Caused by: java.lang.NoSuchMethodError: >> java.lang.String.getBytes(Ljava/nio/charset/Charset;)[B >> at aQute.lib.osgi.Jar.<clinit>(Jar.java:290) >> at >> org.apache.felix.bundleplugin.BundlePlugin.getClasspath(BundlePlugin.java:942) >> at >> org.apache.felix.bundleplugin.BundlePlugin.execute(BundlePlugin.java:261) >> at >> org.apache.felix.bundleplugin.BundlePlugin.execute(BundlePlugin.java:252) >> at >> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) >> >> >> Is this intentional (that Java 6 is a requirement to run the >> maven-bundle-plugin)? > > not intentional - https://issues.apache.org/jira/browse/FELIX-3037 - happened > when we picked up the new version of bnd > > if you don't need any of the changes in 2.3.5 you can lock down the plugin > version to 2.3.4, which does work with Java 5 > >> -Marshall Schor >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
