[jira] [Created] (CALCITE-586) Serializing Signature.internalParameters can cause exceptions

["Trevor Hartman (JIRA)" <ji...@apache.org>]

Trevor Hartman created CALCITE-586:
--------------------------------------

             Summary: Serializing Signature.internalParameters can cause exceptions
                 Key: CALCITE-586
                 URL: https://issues.apache.org/jira/browse/CALCITE-586
             Project: Calcite
          Issue Type: Bug
            Reporter: Trevor Hartman
            Assignee: Julian Hyde
            Priority: Minor


Observed exceptions:

{code}
java.lang.AssertionError: null
at org.apache.calcite.rel.type.RelDataTypeImpl.getFieldList(RelDataTypeImpl.java:138) ~[calcite-core-1.0.0-incubating-SNAPSHOT.jar:1.0.0-incubating-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:466) ~[jackson-databind-2.4.2.jar:2.4.2]
{/code}

And in https://github.com/devth/calcite-map-demo:

{code}
java.lang.RuntimeException: com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class org.apache.calcite.sql.type.SqlTypeExplicitPrecedenceList and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.SerializationFeature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: org.apache.calcite.avatica.remote.ResultSetResponse["signature"]->org.apache.calcite.avatica.Signature["internalParameters"]->java.util.LinkedHashMap["v0stashed"]->com.google.common.collect.RegularImmutableList[0]->org.apache.calcite.rex.RexCall["operands"]->com.google.common.collect.RegularImmutableList[0]->org.apache.calcite.rex.RexInputRef["type"]->org.apache.calcite.sql.type.MapSqlType["keyType"]->org.apache.calcite.sql.type.BasicSqlType["precedenceList"])
        at org.apache.calcite.avatica.remote.JsonHandler.handle(JsonHandler.java:61) ~[calcite-avatica-1.0.0-incubating.jar:1.0.0-incubating]
        at org.apache.calcite.avatica.remote.JsonHandler.apply(JsonHandler.java:46) ~[calcite-avatica-1.0.0-incubating.jar:1.0.0-incubating]
        at org.apache.calcite.avatica.server.AvaticaHandler.handle(AvaticaHandler.java:47) ~[calcite-avatica-server-1.0.0-incubating.jar:1.0.0-incubating]
{/code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)