java - jackson 即使使用相同的版本也会抛出 IllegalAccessError

Question

我正在用 jackson 开发软件，但完全卡住了......当我用 java -jar <MY_APPLICATION>.jar 运行 spring-boot 程序时命令，我收到以下错误:

...
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.fasterxml.jackson.databind.ObjectMapper]: Factory method 'jacksonObjectMapper' threw exception; nested exception is
java.lang.IllegalAccessError: tried to access method com.fasterxml.jackson.databind.ser.std.StdSerializer.<init>(Ljava/lang/Class;)V from class com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
        ... 84 more
Caused by: java.lang.IllegalAccessError: tried to access method com.fasterxml.jackson.databind.ser.std.StdSerializer.<init>(Ljava/lang/Class;)V from class com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
        at com.fasterxml.jackson.datatype.jsr310.JavaTimeModule.<init>(JavaTimeModule.java:159)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.lang.Class.newInstance(Class.java:442)
        at org.springframework.beans.BeanUtils.instantiate(BeanUtils.java:78)
        at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.registerWellKnownModulesIfAvailable(Jackson2ObjectMapperBuilder.java:719)
        at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.configure(Jackson2ObjectMapperBuilder.java:572)
        at org.springframework.http.converter.json.Jackson2ObjectMapperBuilder.build(Jackson2ObjectMapperBuilder.java:554)
        at org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration$JacksonObjectMapperConfiguration.jacksonObjectMapper(JacksonAutoConfiguration.java:87)
        at org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration$JacksonObjectMapperConfiguration$$EnhancerBySpringCGLIB$$2434a0bb.CGLIB$jacksonObjectMapper$0(<generated>)
        at org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration$JacksonObjectMapperConfiguration$$EnhancerBySpringCGLIB$$2434a0bb$$FastClassBySpringCGLIB$$d685921f.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356)
        at org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration$JacksonObjectMapperConfiguration$$EnhancerBySpringCGLIB$$2434a0bb.jacksonObjectMapper(<generated>)
        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 org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
        ... 85 more

错误上面还有更多的错误信息，不过我觉得重要的信息是java.lang.IllegalAccessError: tried to access method com.fasterxml.jackson.databind.ser.std.StdSerializer.<init>(Ljava/lang/Class;) ，我知道这通常不会发生。

我确认jackson模块是同一个版本(2.6.5来自spring-boot的依赖)，不包括codehaus的jackson:

$ mvn dependency:tree -Dverbose -Dincluces=com.fasterxml.jackson.core | grep -v omitted

...

[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ patriot-fdc-web ---
[INFO] <MY_GROUP>:<MY_APPLICATION_A>:war:0.3.9-SNAPSHOT
[INFO] +- <MY_GROUP>:<MY_APPLICATION_B>:jar:0.3.9-SNAPSHOT:compile
[INFO] |  \- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.6.5:compile
[INFO] |     +- com.fasterxml.jackson.core:jackson-core:jar:2.6.5:compile
[INFO] \- org.springframework.boot:spring-boot-starter-web:jar:1.3.3.RELEASE:compile
[INFO]    \- com.fasterxml.jackson.core:jackson-databind:jar:2.6.5:compile (version managed from 2.4.2)
[INFO]       +- com.fasterxml.jackson.core:jackson-annotations:jar:2.6.5:compile (version managed from 2.6.0)

有人会遇到这样的问题吗？任何人都可以为错误提出任何解决方案或可能性吗？提前谢谢你。

Answer 1

我找到了原因。

依赖项包括 calcite-avartica Artifact ，它在 2.1.1 版本中有一个带阴影的 jackson。这就是为什么我无法通过 mvn dependency:tree 找到依赖项。我通过查看 StdSerializer 的来源，通过远程调试找到了它。 https://issues.apache.org/jira/browse/CALCITE-1110

Avartica 1.9.0 或更高版本可能不会打扰我们。我只是排除了 calcite-core 和 calcite-avartica，最后它运行良好。