JasonQi2020 opened a new issue, #2040: URL: https://github.com/apache/incubator-hugegraph/issues/2040
### Bug Type (问题类型) other exception / error (其他异常报错) ### Before submit - [X] 我已经确认现有的 [Issues](https://github.com/hugegraph/hugegraph/issues) 与 [FAQ](https://hugegraph.github.io/hugegraph-doc/guides/faq.html) 中没有相同 / 重复问题 ### Environment (环境信息) - Server Version: v0.12.0 - Backend: RocksDB x 1, SSD - OS: xx CPUs, 8 G RAM, centos 7 - Data Size: 20 vertices, 10 edges <!-- (like 1000W 点, 9000W 边) --> ### Expected & Actual behavior (期望与实际表现) **the following code complains:** ``` GraphTraversalSource g = traversal().withRemote("\resources\\remote.properties"); org.apache.tinkerpop.gremlin.structure.Vertex next = g.V().next(); System.out.println(next); ``` ****exception**** java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException at org.apache.tinkerpop.gremlin.process.remote.RemoteConnection.from(RemoteConnection.java:73) at org.apache.tinkerpop.gremlin.process.traversal.AnonymousTraversalSource.withRemote(AnonymousTraversalSource.java:76) at org.apache.tinkerpop.gremlin.process.traversal.AnonymousTraversalSource.withRemote(AnonymousTraversalSource.java:66) at com.blackwings.hugegraph.dao.HugegraphTest.con3(HugegraphTest.java:153) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) at org.apache.tinkerpop.gremlin.process.remote.RemoteConnection.from(RemoteConnection.java:71) ... 27 more Caused by: java.lang.VerifyError: Bad type on operand stack Exception Details: Location: com/baidu/hugegraph/io/HugeGraphSONModule.registerCommonSerializers(Lorg/apache/tinkerpop/shaded/jackson/databind/module/SimpleModule;)V @58: invokespecial Reason: Type 'com/baidu/hugegraph/date/SafeDateFormat' (current frame, stack[5]) is not assignable to 'java/text/DateFormat' Current Frame: bci: @58 flags: { } locals: { 'org/apache/tinkerpop/shaded/jackson/databind/module/SimpleModule', integer } stack: { 'org/apache/tinkerpop/shaded/jackson/databind/module/SimpleModule', 'java/lang/Class', uninitialized 47, uninitialized 47, 'java/lang/Boolean', 'com/baidu/hugegraph/date/SafeDateFormat' } Bytecode: 0000000: 2a12 0fbb 0010 59b7 0011 b600 1257 2a12 0000010: 13bb 0014 59b7 0015 b600 1257 2a12 16bb 0000020: 0017 59b7 0018 b600 1257 033c 2a12 19bb 0000030: 001a 591b b800 1bb2 001c b700 1db6 0012 0000040: 572a 1219 bb00 1e59 bb00 1e59 b700 1fb2 0000050: 001c 1220 b700 21b6 0022 572a 1223 bb00 0000060: 2459 b700 25b6 0012 572a 1223 bb00 2659 0000070: b700 27b6 0022 572a 1228 bb00 2959 b700 0000080: 2ab6 0012 572a 1228 bb00 2b59 b700 2cb6 0000090: 0022 57b1 at com.baidu.hugegraph.io.HugeGraphIoRegistry.<init>(HugeGraphIoRegistry.java:36) at com.baidu.hugegraph.io.HugeGraphIoRegistry.<clinit>(HugeGraphIoRegistry.java:27) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:315) at org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1.lambda$configure$0(GraphBinaryMessageSerializerV1.java:108) at java.base/java.util.ArrayList.forEach(ArrayList.java:1541) at org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1.configure(GraphBinaryMessageSerializerV1.java:106) at org.apache.tinkerpop.gremlin.driver.Settings$SerializerSettings.lambda$create$0(Settings.java:425) at java.base/java.util.Optional.ifPresent(Optional.java:183) at org.apache.tinkerpop.gremlin.driver.Settings$SerializerSettings.create(Settings.java:425) at org.apache.tinkerpop.gremlin.driver.Cluster.getBuilderFromSettings(Cluster.java:224) at org.apache.tinkerpop.gremlin.driver.Cluster.build(Cluster.java:172) at org.apache.tinkerpop.gremlin.driver.Cluster.open(Cluster.java:260) at org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection.<init>(DriverRemoteConnection.java:80) ... 32 more configration file : **remote.properties** gremlin.remote.remoteConnectionClass=org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection gremlin.remote.driver.clusterFile=remote-objects.yaml gremlin.remote.driver.sourceName=g **remote-objects.yaml** hosts: [1.320.5.220] port: 8182 serializer: { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { ioRegistries: [com.baidu.hugegraph.io.HugeGraphIoRegistry] } } ### Vertex/Edge example (问题点 / 边数据举例) _No response_ ### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构) _No response_ -- This is an automated message from the Apache Git Service. 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