At least Hadoop is able to find jars inside jar, if they're placed inside lib directory in the jar - I use this for packing my code (via assembly plugin), with following assembly description:
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd";> <id>job</id> <formats> <format>jar</format> </formats> <includeBaseDirectory>false</includeBaseDirectory> <dependencySets> <dependencySet> <unpack>false</unpack> <scope>runtime</scope> <outputDirectory>lib</outputDirectory> <excludes> <exclude>${artifact.groupId}:${artifact.artifactId}</exclude> <exclude>org.apache.hadoop:hadoop-core</exclude> </excludes> </dependencySet> <dependencySet> <unpack>true</unpack> <includes> <include>${artifact.groupId}:${artifact.artifactId}</include> </includes> </dependencySet> </dependencySets> </assembly> On Sun, Aug 5, 2012 at 1:10 AM, Ted Dunning <[email protected]> wrote: > I didn't think that Java supports jars inside jars. > > On Sat, Aug 4, 2012 at 5:04 PM, Lance Norskog <[email protected]> wrote: > >> The Maven build does a grand project unpacking multiple jars into one >> big one. Java apparently supports packing jars inside other jars- the >> outer jar needs a classpath property for the inside jars. When someone >> rearranged the Maven build, did they try this out? Is there a Maven >> task for jar-of-jars? >> >> -- >> Lance Norskog >> [email protected] >> -- With best wishes, Alex Ott http://alexott.net/ Twitter: alexott_en (English), alexott (Russian) Skype: alex.ott
