Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Spring JIRA by John Souza, 1 year ago
Cannot create a reference to an object with a NULL id.
via Spring JIRA by John Souza, 2 years ago
Cannot create a reference to an object with a NULL id.
via Stack Overflow by zhsyourai
, 2 years ago
No id property found on class class [Ljava.lang.Integer;
via Spring JIRA by Zhu Hongshang, 2 years ago
No id property found on class class [Ljava.lang.Integer;
via Spring JIRA by Zhu Hongshang, 1 year ago
No id property found on class class [Ljava.lang.Integer;
org.springframework.data.mapping.model.MappingException: Cannot create a reference to an object with a NULL id. at org.springframework.data.mongodb.core.convert.MappingMongoConverter.createDBRef(MappingMongoConverter.java:800) at org.springframework.data.mongodb.core.convert.MappingMongoConverter.toDBRef(MappingMongoConverter.java:311)