[jira] [Created] (TEZ-1818) Problem loading tez-api-version-info.properties in case current context classloader in not pointing to Tez jars

["Johannes Zillmann (JIRA)" <ji...@apache.org>]

Johannes Zillmann created TEZ-1818:
--------------------------------------

             Summary: Problem loading tez-api-version-info.properties in case current context classloader in not pointing to Tez jars
                 Key: TEZ-1818
                 URL: https://issues.apache.org/jira/browse/TEZ-1818
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Johannes Zillmann


TEZ-1664 (0.5.2) introduced loading of tez-api-version-info.properties which is packaged within the tez-api.jar. Its using the current context classloader to load it:
{code}
Thread.currentThread().getContextClassLoader()
          .getResourceAsStream(versionInfoFile);
{code}

In our environment we load the tez code as a plugin. Our context classloader doesn't have any reference to the Tez code. Thus when instantiating the tez client there is this exception:
{code}
 WARN [2014-12-03 17:30:30.971] (VersionInfo.java:60) - Could not read 'tez-api-version-info.properties', java.io.IOException: Resource not found
java.io.IOException: Resource not found
	at org.apache.tez.common.VersionInfo.<init>(VersionInfo.java:56)
	at org.apache.tez.client.TezApiVersionInfo.<init>(TezApiVersionInfo.java:26)
	at org.apache.tez.client.TezClient.<init>(TezClient.java:137)
	at org.apache.tez.client.TezClient.create(TezClient.java:213)
        ....
{code}

Is there any specific reason the context classloader is used to load the file ?
Since the properties file is usually bundled within the jar would TezApiVersionInfo.class.getResourceAsStream() not be a better fit ?



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