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From "Stark Arya (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TINKERPOP-2241) Client exception don't match Server exception when server throw StackOverflowError
Date Tue, 11 Jun 2019 09:30:00 GMT
Stark Arya created TINKERPOP-2241:
-------------------------------------

             Summary: Client exception don't match Server exception when server  throw StackOverflowError
                 Key: TINKERPOP-2241
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2241
             Project: TinkerPop
          Issue Type: Bug
          Components: server
    Affects Versions: 3.4.2, 3.4.0
         Environment: Mac 
            Reporter: Stark Arya
             Fix For: 3.4.3


On both apache-tinkerpop-gremlin-console-3.4.2 and other version,When i try a extra-long
requests,the client get NPE:java.lang.NullPointerException
{code:java}
gremlin> g = TinkerGraph.open().traversal()
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.addV("1")
==>v[0]
gremlin>g.addV('role').property('name','xxx').property('merchantId',9999).property('creatorId',0).property('modifierId',0).property('createTime',0).property('updateTime',0).property('_classname','com.dding.platform.service.auth.entity.Role').addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV().addE('rolePermissionShip').to(V('1')).outV()

java.lang.NullPointerException
{code}
However,the gremlin-server just throw: java.lang.StackOverflowError: null error just because
the thread's stack overflow。



 

The exception mismatch above is  just because in the server side,  StackOverflowError's getMessage()
function will return null ,which cause ResponseMessage.ResponseStatus.message variable assigned
to null;

but the gremlin-driver does not checking serTokens.TOKEN_MESSAGE's value, so throw new exception
when deserialize, code snippet as follows:

 
{code:java}
// file: AbstractGraphSONMessageSerializerV2d0.java
public final static class ResponseMessageDeserializer extends AbstractObjectDeserializer<ResponseMessage>
{
    protected ResponseMessageDeserializer() {
        super(ResponseMessage.class);
    }
    
    @Override
    public ResponseMessage createObject(final Map<String, Object> data) {
        final Map<String, Object> status = (Map<String, Object>) data.get(SerTokens.TOKEN_STATUS);
        final Map<String, Object> result = (Map<String, Object>) data.get(SerTokens.TOKEN_RESULT);
        return ResponseMessage.build(UUID.fromString(data.get(SerTokens.TOKEN_REQUEST).toString()))
                .code(ResponseStatusCode.getFromValue((Integer) status.get(SerTokens.TOKEN_CODE)))
                .statusMessage(status.get(SerTokens.TOKEN_MESSAGE).toString())
                .statusAttributes((Map<String, Object>) status.get(SerTokens.TOKEN_ATTRIBUTES))
                .result(result.get(SerTokens.TOKEN_DATA))
                .responseMetaData((Map<String, Object>) result.get(SerTokens.TOKEN_META))
                .create();
    }
}
{code}
 

 

 



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