Petr Langr created TINKERPOP-3221:
-------------------------------------
Summary: Strategy serialization breaking change in 3.8.0
Key: TINKERPOP-3221
URL: https://issues.apache.org/jira/browse/TINKERPOP-3221
Project: TinkerPop
Issue Type: Bug
Affects Versions: 3.8.0
Reporter: Petr Langr
Trying to connect to 3.8.0 tinkerpop server from older java client version
fails when using traversal strategies.
{code:java}
NPE in java.util.Map.entrySet()" because "mapConf{code}
Example query using java-client 3.7.4
{code:java}
g
.with("Authorization", "Bearer xyz")
.withStrategies(
PartitionStrategy.build()
.partitionKey("orgId")
.readPartitions(orgId)
.create()
)
.V()
.count()
.next() {code}
Seems like TINKERPOP-3055 introduced unnecessary breaking change in
deserialization. I could not find anything related to that in [release
notes|https://github.com/apache/tinkerpop/blob/master/docs/src/upgrade/release-3.8.0.asciidoc].
Below is an exception generated.
{code:java}
Could not deserialize the JSON value as required. Nested exception:
org.apache.tinkerpop.shaded.jackson.databind.JsonMappingException:
Could not deserialize the JSON value as required. Nested exception:
org.apache.tinkerpop.shaded.jackson.databind.JsonMappingException:
Could not deserialize the JSON value as required. Nested exception:
java.lang.NullPointerException: Cannot invoke
"java.util.Map.entrySet()" because "mapConf" is null
at [Source:
(byte[])"{"requestId":"85c62759-77ae-4abe-baf9-e734f38c68b8","op":"bytecode","processor":"traversal","args":{"@type":"g:Map","@value":["gremlin",{"@type":"g:Bytecode","@value":{"source":[["withStrategies",{"@type":"g:OptionsStrategy","@value":{"Authorization":"bearer
xyz"[truncated 720 bytes]; line: 1, column: 1013]
at [Source:
(byte[])"{"requestId":"85c62759-77ae-4abe-baf9-e734f38c68b8","op":"bytecode","processor":"traversal","args":{"@type":"g:Map","@value":["gremlin",{"@type":"g:Bytecode","@value":{"source":[["withStrategies",{"@type":"g:OptionsStrategy","@value":{"Authorization":"bearer
xyz"[truncated 720 bytes]; line: 1, column: 1013]
at [Source:
(byte[])"{"requestId":"85c62759-77ae-4abe-baf9-e734f38c68b8","op":"bytecode","processor":"traversal","args":{"@type":"g:Map","@value":["gremlin",{"@type":"g:Bytecode","@value":{"source":[["withStrategies",{"@type":"g:OptionsStrategy","@value":{"Authorization":"bearer
xyz"[truncated 720 bytes]; line: 1, column: 1013]
(through reference chain: java.util.LinkedHashMap["args"])
at
org.apache.tinkerpop.shaded.jackson.databind.JsonMappingException.from(JsonMappingException.java:269)
at
org.apache.tinkerpop.shaded.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:2167)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserialize(GraphSONTypeDeserializer.java:199)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserializeTypedFromAny(GraphSONTypeDeserializer.java:103)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.UntypedObjectDeserializer.deserializeWithType(UntypedObjectDeserializer.java:313)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.MapDeserializer._readAndBindStringKeyMap(MapDeserializer.java:625)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:449)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:32)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserialize(GraphSONTypeDeserializer.java:217)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserializeTypedFromObject(GraphSONTypeDeserializer.java:88)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.MapDeserializer.deserializeWithType(MapDeserializer.java:492)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:74)
at
org.apache.tinkerpop.shaded.jackson.databind.DeserializationContext.readValue(DeserializationContext.java:977)
at
org.apache.tinkerpop.shaded.jackson.databind.DeserializationContext.readValue(DeserializationContext.java:964)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.AbstractObjectDeserializer.deserialize(AbstractObjectDeserializer.java:48)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserialize(GraphSONTypeDeserializer.java:217)
at
org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONTypeDeserializer.deserializeTypedFromAny(GraphSONTypeDeserializer.java:103)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.std.StdDeserializer.deserializeWithType(StdDeserializer.java:172)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.impl.TypeWrappedDeserializer.deserialize(TypeWrappedDeserializer.java:74)
at
org.apache.tinkerpop.shaded.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:323)
at
org.apache.tinkerpop.shaded.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4825)
at
org.apache.tinkerpop.shaded.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3833)
at
org.apache.tinkerpop.gremlin.util.ser.AbstractGraphSONMessageSerializerV2.deserializeRequest(AbstractGraphSONMessageSerializerV2.java:122)
at
org.apache.tinkerpop.gremlin.server.handler.WsGremlinBinaryRequestDecoder.decode(WsGremlinBinaryRequestDecoder.java:77)
at
org.apache.tinkerpop.gremlin.server.handler.WsGremlinBinaryRequestDecoder.decode(WsGremlinBinaryRequestDecoder.java:43)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:91)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:107)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:107)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:93)
at
io.netty.handler.codec.http.websocketx.Utf8FrameValidator.channelRead(Utf8FrameValidator.java:98)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:107)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
org.apache.tinkerpop.gremlin.server.handler.WsAndHttpChannelizerHandler.channelRead(WsAndHttpChannelizerHandler.java:103)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:356)
at
io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:293)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:354)
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918)
at
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:168)
at
io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.handle(AbstractNioChannel.java:445)
at
io.netty.channel.nio.NioIoHandler$DefaultNioRegistration.handle(NioIoHandler.java:388)
at io.netty.channel.nio.NioIoHandler.processSelectedKey(NioIoHandler.java:596)
at
io.netty.channel.nio.NioIoHandler.processSelectedKeysOptimized(NioIoHandler.java:571)
at io.netty.channel.nio.NioIoHandler.processSelectedKeys(NioIoHandler.java:512)
at io.netty.channel.nio.NioIoHandler.run(NioIoHandler.java:484)
at
io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:225)
at
io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:196)
at
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1193)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at java.base/java.lang.Thread.run(Thread.java:1583) {code}
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