[HAMA-943] java.lang.IllegalAccessError occur at run time when set default "bsp.user.name"

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6.4
• Fix Version/s: 0.7.0
• Component/s: yarn

Environment

3 clusters on Amazon EMR

• Assignee: Minho Kim
• Reporter: Minho Kim
• Created: 02/Apr/15 08:24
• Updated: 04/Apr/15 00:08
• Resolved: 03/Apr/15 11:57

Description

java.lang.IllegalAccessError occur at run time when set default "bsp.user.name".

Error message is as below.

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.apache.hama.bsp.BSPJobClient.getUnixUserName()Ljava/lang/String; from class org.apache.hama.bsp.YARNBSPJobClient
	at org.apache.hama.bsp.YARNBSPJobClient.launchJob(YARNBSPJobClient.java:153)
	at org.apache.hama.bsp.BSPJobClient.submitJobInternal(BSPJobClient.java:400)
	at org.apache.hama.bsp.YARNBSPJob.submit(YARNBSPJob.java:79)
	at org.apache.hama.bsp.YARNBSPJob.waitForCompletion(YARNBSPJob.java:103)
	at org.apache.hama.bsp.YarnSerializePrinting.main(YarnSerializePrinting.java:71)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hama.util.RunJar.main(RunJar.java:146)

I think the reason why this error was occurred is I accessed directly parent class method "getUnixUserName()" which is not protected or public.
So I'll fix this issue soon.