[JSONRPC-48] Weird error when proxy instance is used concurrently from multiple threads Created: 14/Jul/20  Updated: 14/Jul/20

Status: Open
Project: jsonrpc
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Medium
Reporter: Richard Kosegi Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified


 Description   

When proxy instance is used from multiple threads, it is possible to break internal FSM.

This should be avoided by some sort of guard that synchronize access to underlying channel.

 

This is not a blocker, as using same proxy from multiple threads is not supported.

 

Caused by: java.lang.NullPointerException
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.read(RequesterSessionImpl.java:113)
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.sendRequestAndReadReply(RequesterSessionImpl.java:146)
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.sendRequestAndReadReply(RequesterSessionImpl.java:140)
 at org.opendaylight.jsonrpc.bus.messagelib.ProxyServiceImpl.invoke(ProxyServiceImpl.java:185)

 

 Caused by: org.opendaylight.jsonrpc.bus.messagelib.MessageLibraryTimeoutException: Message was not received within 30000 milliseconds
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.read(RequesterSessionImpl.java:115)
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.sendRequestAndReadReply(RequesterSessionImpl.java:146)
 at org.opendaylight.jsonrpc.bus.messagelib.RequesterSessionImpl.sendRequestAndReadReply(RequesterSessionImpl.java:140)
 at org.opendaylight.jsonrpc.bus.messagelib.ProxyServiceImpl.invoke(ProxyServiceImpl.java:185)

 
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