机器学习PAI项目里使用报这个错是因为什么？之前没遇到过
2023-06-05 19:50:07 [XNIO-1 task-2] INFO o.a.f.a.java.typeutils.TypeExtractor
- class org.apache.flink.types.Row is missing a default constructor so it cannot be used as a POJO type and must be processed as GenericType. Please read the Flink documentation on “Data Types & Serialization” for details of the effect on performance.
2023-06-05 19:50:07 [XNIO-1 task-2] INFO o.a.f.api.java.utils.PlanGenerator
- The job has 11 registered types and 2 default Kryo serializers
2023-06-05 19:50:08 [XNIO-1 task-2] WARN o.a.f.a.j.t.r.kryo.KryoSerializer
- Falling back to default Kryo serializer because Chill serializer couldn’t be found.
java.lang.reflect.InvocationTargetException: null
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.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.getKryoInstance(KryoSerializer.java:444)
at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.checkKryoInitialized(KryoSerializer.java:467)
at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.serialize(KryoSerializer.java:299)
at org.apache.flink.api.java.io.CollectionInputFormat.writeObject(CollectionInputFormat.java:90)
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 java.base/java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1145)
at java.base/java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1497)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433)
at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1179)
at java.base/java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1553)
at java.base/java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1510)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433)
at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1179)
at java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:349)
at java.base/java.util.HashMap.internalWriteEntries(HashMap.java:1858)
at java.base/java.util.HashMap.writeObject(HashMap.java:1412)
at java.base/jdk.internal.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)