Colin Patrick McCabe created HDFS-3579:
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Summary: libhdfs: fix "WARNING in native method: JNI call made
with exception pending" in errnoFromException
Key: HDFS-3579
URL: https://issues.apache.org/jira/browse/HDFS-3579
Project: Hadoop HDFS
Issue Type: Bug
Components: libhdfs
Affects Versions: 2.0.1-alpha
Reporter: Colin Patrick McCabe
Assignee: Colin Patrick McCabe
Priority: Minor
Fix For: 2.0.1-alpha
Running a libhdfs test program with -Xcheck:jni reveals some problems.
{code}
WARNING in native method: JNI call made with exception pending
WARNING in native method: JNI call made with exception pending
WARNING in native method: JNI call made with exception pending
WARNING in native method: JNI call made with exception pending
WARNING in native method: JNI call made with exception pending
Exception in thread "main" java.io.IOException: ...
{code}
The problem seems to be that in errnoFromException, we are calling
classNameOfObject and some other JNI methods prior to clearing the pending
exception. It should be simple enough to avoid doing this.
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