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  1. ,
    Expert tip

    Try indicating constructor to use @JsonCreator annotation.

  2. ,

    The easiest solution is to provide a default constructor for the class you want to convert from/to json.

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via GitHub by islandsvinur
, 1 year ago
via Google Groups by yedem...@163.com (JIRA), 1 year ago
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, 2 years ago
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via Jenkins JIRA by Ye Deming, 1 year ago
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via jenkins-ci.org by Unknown author, 1 year ago
com.fasterxml.jackson.databind.JsonMappingException: Can not instantiate value of type [simple type, class java.lang.Void] from Boolean value (true); no single-boolean/Boolean-arg constructor/factory method
 at [Source: true; line: 1, column: 1]	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:148)	at com.fasterxml.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:843)	at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromBoolean(StdValueInstantiator.java:352)	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromBoolean(BeanDeserializerBase.java:1196)	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:162)	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:144)	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3562)	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2578)	at org.gitlab.api.http.GitlabHTTPRequestor.parse(GitlabHTTPRequestor.java:330)	at org.gitlab.api.http.GitlabHTTPRequestor.to(GitlabHTTPRequestor.java:144)	at org.gitlab.api.http.GitlabHTTPRequestor.to(GitlabHTTPRequestor.java:116)	at org.gitlab.api.GitlabAPI.unblockUser(GitlabAPI.java:274)	at com.gxsoftware.GitLabRemote.main(GitLabRemote.java:18)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)