[jira] [Created] (GEODE-3092) Using the gfsh alter region command to unset a CacheWriter no longer works

["Barry Oglesby (JIRA)" <ji...@apache.org>]

Barry Oglesby created GEODE-3092:
------------------------------------

             Summary: Using the gfsh alter region command to unset a CacheWriter no longer works
                 Key: GEODE-3092
                 URL: https://issues.apache.org/jira/browse/GEODE-3092
             Project: Geode
          Issue Type: Bug
          Components: gfsh
            Reporter: Barry Oglesby


In 1.1, a command like this is used to unset the CacheWriter:
{noformat}
gfsh>alter region --name=/Person --cache-writer=''
Member  | Status
------- | -------------------------------------
server1 | Region "/Person" altered on "server1"
{noformat}
In 1.2, that same command fails:
{noformat}
gfsh>alter region --name=/Person --cache-writer=''
Member  | Status
------- | ----------------------------------------------------------------
server1 | ERROR: Could not find class "null" specified for "cache-writer".
{noformat}
And throws this RuntimeException on the server:
{noformat}
[error 2017/06/15 15:55:12.150 PDT server1 <Function Execution Processor1> tid=0x4c] Could not find class "null" specified for "cache-writer".
java.lang.RuntimeException: Could not find class "null" specified for "cache-writer".
	at org.apache.geode.management.internal.cli.functions.RegionAlterFunction.forName(RegionAlterFunction.java:327)
	at org.apache.geode.management.internal.cli.functions.RegionAlterFunction.alterRegion(RegionAlterFunction.java:277)
	at org.apache.geode.management.internal.cli.functions.RegionAlterFunction.execute(RegionAlterFunction.java:69)
	at org.apache.geode.internal.cache.MemberFunctionStreamingMessage.process(MemberFunctionStreamingMessage.java:185)
	at org.apache.geode.distributed.internal.DistributionMessage.scheduleAction(DistributionMessage.java:374)
	at org.apache.geode.distributed.internal.DistributionMessage$1.run(DistributionMessage.java:440)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.geode.distributed.internal.DistributionManager.runUntilShutdown(DistributionManager.java:665)
	at org.apache.geode.distributed.internal.DistributionManager$9$1.run(DistributionManager.java:1111)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: null
	at org.apache.geode.internal.ClassPathLoader.forName(ClassPathLoader.java:169)
	at org.apache.geode.management.internal.cli.functions.RegionAlterFunction.forName(RegionAlterFunction.java:323)
	... 10 more
{noformat}
The CreateAlterDestroyRegionCommands alterRegion method was changed fairly recently

From:
{noformat}
@CliOption(key = CliStrings.ALTER_REGION__CACHEWRITER,
		unspecifiedDefaultValue = CliMetaData.ANNOTATION_NULL_VALUE,
		specifiedDefaultValue = "null",
		help = CliStrings.ALTER_REGION__CACHEWRITER__HELP) String cacheWriter,
{noformat}
To:
{noformat}
@CliOption(key = CliStrings.ALTER_REGION__CACHEWRITER, specifiedDefaultValue = "null",
		help = CliStrings.ALTER_REGION__CACHEWRITER__HELP) String cacheWriter,
{noformat}
What is passed to the RegionAlterFunction now is a string with the value "null".

I think the same issue exists for the CacheLoader.




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