[SQOOP-779] Sqoop2: NPE when JobConnectorContext has a null value

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.99.1
• Fix Version/s: 1.99.1
• Assignee: Cheolsoo Park
• Reporter: Cheolsoo Park
• Created: 14/Dec/12 23:21
• Updated: 15/Dec/12 19:46
• Resolved: 15/Dec/12 19:46

Description

When ConnectorContext has a null value, the following code throws NPE:

MapReduceSubmissionEngine.java

    // Serialize connector context as a sub namespace
    for(Map.Entry<String, String> entry :request.getConnectorContext()) {
      configuration.set(
        JobConstants.PREFIX_CONNECTOR_CONTEXT + entry.getKey(),
        entry.getValue());
    }

The call stack looks like this:

Stack trace:
	 at  java.util.Hashtable (Hashtable.java:394)  
	 at  java.util.Properties (Properties.java:143)  
	 at  org.apache.hadoop.conf.Configuration (Configuration.java:784)  
	 at  org.apache.hadoop.conf.Configuration (Configuration.java:767)  
	 at  org.apache.sqoop.submission.mapreduce.MapreduceSubmissionEngine (MapreduceSubmissionEngine.java:147)  
	 at  org.apache.sqoop.framework.FrameworkManager (FrameworkManager.java:424)  
	 at  org.apache.sqoop.handler.SubmissionRequestHandler (SubmissionRequestHandler.java:112)  
	 at  org.apache.sqoop.handler.SubmissionRequestHandler (SubmissionRequestHandler.java:98)  
	 at  org.apache.sqoop.handler.SubmissionRequestHandler (SubmissionRequestHandler.java:68)  
	 at  org.apache.sqoop.server.v1.SubmissionServlet (SubmissionServlet.java:44)  
	 at  org.apache.sqoop.server.SqoopProtocolServlet (SqoopProtocolServlet.java:63)  
	 at  javax.servlet.http.HttpServlet (HttpServlet.java:637)  
	 at  javax.servlet.http.HttpServlet (HttpServlet.java:717)  
	 at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:290)  
	 at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:206)  
	 at  org.apache.catalina.core.StandardWrapperValve (StandardWrapperValve.java:233)  
	 at  org.apache.catalina.core.StandardContextValve (StandardContextValve.java:191)  
	 at  org.apache.catalina.core.StandardHostValve (StandardHostValve.java:127)  
	 at  org.apache.catalina.valves.ErrorReportValve (ErrorReportValve.java:103)  
	 at  org.apache.catalina.core.StandardEngineValve (StandardEngineValve.java:109)  
	 at  org.apache.catalina.connector.CoyoteAdapter (CoyoteAdapter.java:293)  
	 at  org.apache.coyote.http11.Http11Processor (Http11Processor.java:861)  
	 at  org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler (Http11Protocol.java:606)  
	 at  org.apache.tomcat.util.net.JIoEndpoint$Worker (JIoEndpoint.java:489)  
	 at  java.lang.Thread (Thread.java:662)

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