[GORA-172] java.lang.ClassNotFoundException: org.apache.gora.memory.store.MemStore.MemQuery

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.2.1
• Fix Version/s: 0.3
• Component/s: gora-core
• Assignee: Unassigned
• Reporter: Mike Baranczak
• Created: 10/Oct/12 23:36
• Updated: 01/Jul/13 05:05
• Resolved: 12/Nov/12 13:04

Description

Caused by: java.io.IOException: java.lang.ClassNotFoundException: Failed to load classorg.apache.gora.memory.store.MemStore.MemQuery
at org.apache.gora.util.IOUtils.loadFromConf(IOUtils.java:483)
at org.apache.gora.mapreduce.GoraInputFormat.getQuery(GoraInputFormat.java:125)
at org.apache.gora.mapreduce.GoraInputFormat.setConf(GoraInputFormat.java:112)
... 47 more
Caused by: java.lang.ClassNotFoundException: Failed to load classorg.apache.gora.memory.store.MemStore.MemQuery
at org.apache.gora.util.ClassLoadingUtils.loadClass(ClassLoadingUtils.java:41)
at org.apache.gora.util.ClassLoadingUtils.loadClass(ClassLoadingUtils.java:19)
at org.apache.gora.util.IOUtils.loadFromConf(IOUtils.java:480)
... 49 more

It seems that IOUtils mangles the name of this static inner class (should be: MemStore$MemQuery). This bug was described two years ago on the mailing list - the guy even described how to fix it:

http://mail-archives.apache.org/mod_mbox/gora-dev/201011.mbox/[e-mail]%3E