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https://issues.apache.org/jira/browse/HBASE-6067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13288708#comment-13288708
]
Daryn Sharp commented on HBASE-6067:
------------------------------------
This code demonstrates that {{getDeclaredMethod}} only returns a method
explicitly defined in the class.
{code}
import java.lang.reflect.*;
public class Test {
public static void main(String[] args) throws Exception {
String m;
try {
m = B.class.getDeclaredMethod("method").toString();
} catch (Exception e) {
m = e.toString();
}
System.out.println("getDeclaredMethod: "+m);
try {
m = B.class.getMethod("method").toString();
} catch (Exception e) {
m = e.toString();
}
System.out.println("getMethod: "+m);
}
static class A { public void method() {} }
static class B extends A { }
}
{code}
Produces the output:
{code}
getDeclaredMethod: java.lang.NoSuchMethodException: Test$B.method()
getMethod: public void Test$A.method()
{code}
Per the docs and my testing, the get method calls only return public methods,
so the {{setAccessible}} is a no-op.
> HBase won't start when hbase.rootdir uses ViewFileSystem
> --------------------------------------------------------
>
> Key: HBASE-6067
> URL: https://issues.apache.org/jira/browse/HBASE-6067
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Eli Collins
> Assignee: Zhihong Ted Yu
> Fix For: 0.96.0, 0.94.1, 0.92.3
>
> Attachments: 6067-v2.txt, 6067.txt
>
>
> HBase currently doesn't work with HDFS federation (hbase.rootdir with a
> client that uses viewfs) because HLog#init uses
> FileSystem#getDefaultBlockSize and getDefaultReplication. These throw an
> exception because there is no default filesystem in a viewfs client so
> there's no way to determine a default block size or replication factor. They
> could use the versions of these methods that take a path, however these were
> introduced in HADOOP-8014 and are not yet available in Hadoop 1.x.
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