[ACCUMULO-3453] Accumulo unit tests fail against Hadoop 2.7.0-SNAPSHOT

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.3, 1.7.0
• Component/s: build
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 29/Dec/14 19:09
• Updated: 02/Apr/15 14:53
• Resolved: 29/Dec/14 20:00

Description

Tried to build against a 2.7.0-SNAPSHOT and got org.apache.accumulo.start.classloader.vfs.providers.VfsClassLoaderTest and org.apache.accumulo.start.classloader.vfs.providers.ReadOnlyHdfsFileProviderTest failures.

Looking at the test output:

[FSImageSaver for .../start/target/build/test/data/dfs/name1 of type IMAGE_AND_EDITS} ERROR org.apache.hadoop.hdfs.server.namenode.FSImage  - Unable to save image for .../start/target/build/test/data/dfs/name1
java.lang.NoClassDefFoundError: org/apache/commons/io/Charsets
        at org.apache.hadoop.hdfs.server.namenode.FSImageUtil.<clinit>(FSImageUtil.java:36)
        at org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Saver.<init>(FSImageFormatProtobuf.java:357)
        at org.apache.hadoop.hdfs.server.namenode.FSImage.saveFSImage(FSImage.java:946)
        at org.apache.hadoop.hdfs.server.namenode.FSImage$FSImageSaver.run(FSImage.java:999)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.io.Charsets
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        ... 5 more

We're still depending on commons-io-2.1 which doesn't contain org.apache.commons.io.Charsets. Thus, the transitive dependency on 2.4 from Hadoop gets overridden and we fail.

We should upgrade our dependency on commons-io to 2.4.