Guillaume Chauvet created OPENJPA-2272:
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Summary: Unable to instantiate proxy for type "java.util.EnumMap"
Key: OPENJPA-2272
URL: https://issues.apache.org/jira/browse/OPENJPA-2272
Project: OpenJPA
Issue Type: Bug
Affects Versions: 2.2.0
Reporter: Guillaume Chauvet
Dear OpenJPA team,
I have defined a EnumMap collection field like this :
@OneToMany(cascade = CascadeType.ALL, mappedBy = "settings")
@MapKeyColumn(name = "ENUMKEY")
@MapKeyEnumerated
private Map<FilterType, Ponderation> ponderations = new EnumMap<FilterType,
Ponderation>(FilterType.class);
Generated tables are okay but when I launch my unit test I obtain this message :
<openjpa-2.2.0-r422266:1244990 fatal store error>
org.apache.openjpa.persistence.RollbackException: Unable to instantiate proxy
for type "java.util.EnumMap". Make sure the class has a default constructor.
I understand OpenJPA needs collections with default constructor, but EnumMap
needs the enum type as parameter. This means the EnumMap collection is not
usable ?
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