Laurent Goujon created ARROW-15192:
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Summary: Allow use of Jackson 2.12 or higher
Key: ARROW-15192
URL: https://issues.apache.org/jira/browse/ARROW-15192
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Reporter: Laurent Goujon
Since Jackson 2.12, serializers/deserializers for java.time.* are not enabled
by default and need to be enabled back by adding the jackson jsr310 optional
module.
As the ObjectMapper instances used by json classes in the vector module do not
include the extra jackson module, this precludes Arrow vector library to be
used with Jackson 2.12 or higher.
Here's an example of the error generated by Arrow when used with Jackson 2.12:
{noformat}
java.lang.IllegalStateException: Cannot serialize hash map to JSON string
at
org.apache.arrow.vector.ipc.TestJSONFile.testWriteReadComplexJSON(TestJSONFile.java:125)
Caused by: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Java
8 date/time type `java.time.LocalDateTime` not supported by default: add Module
"com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling
(through reference chain:
org.apache.arrow.vector.util.JsonStringHashMap["timestamp"])
at
org.apache.arrow.vector.ipc.TestJSONFile.testWriteReadComplexJSON(TestJSONFile.java:125)
{noformat}
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