[CALCITE-1699] NPE on any metadata actions against Mysql

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: avatica-1.10.0
• Component/s: avatica
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 15/Mar/17 04:57
• Updated: 30/May/17 16:23
• Resolved: 19/Mar/17 18:46

Description

java.lang.NullPointerException
	at java.util.Objects.requireNonNull(Objects.java:203)
	at org.apache.calcite.avatica.jdbc.StatementInfo.<init>(StatementInfo.java:40)
	at org.apache.calcite.avatica.jdbc.JdbcMeta.registerMetaStatement(JdbcMeta.java:340)
	at org.apache.calcite.avatica.jdbc.JdbcMeta.getTables(JdbcMeta.java:326)
	at org.apache.calcite.avatica.remote.LocalService.apply(LocalService.java:156)
	at org.apache.calcite.avatica.remote.Service$TablesRequest.accept(Service.java:424)
	at org.apache.calcite.avatica.remote.AbstractHandler.apply(AbstractHandler.java:95)
	at org.apache.calcite.avatica.remote.ProtobufHandler.apply(ProtobufHandler.java:46)
	at org.apache.calcite.avatica.server.AvaticaProtobufHandler.handle(AvaticaProtobufHandler.java:124)
	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
	at org.eclipse.jetty.server.Server.handle(Server.java:499)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
	at java.lang.Thread.run(Thread.java:745)

Sadly, it looks like we missed that the getStatement method on ResultSet might return null via the javadoc.