spring boot无法运行 - 启动时出现IllegalAccessError

Question

I have a strange issue and that I have not been able to resolve. I am trying to use the sample JPA sprint boot (v0.5.0-M6) project as a starting point for an application I am writing. I grabbed the JPA sample and got that to run locally. I then proceeded to add my code into that project. I imported into eclipse and run as spring-boot. Then I get this error:

Exception in thread "main" java.lang.IllegalAccessError: tried to access class org.springframework.core.io.DefaultResourceLoader$ClassPathContextResource from class org.springframework.boot.context.embedded.EmbeddedWebApplicationContext
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getResourceByPath(EmbeddedWebApplicationContext.java:386)
at org.springframework.core.io.DefaultResourceLoader.getResource(DefaultResourceLoader.java:100)
at org.springframework.context.support.GenericApplicationContext.getResource(GenericApplicationContext.java:211)
at org.springframework.boot.context.initializer.ConfigFileApplicationContextInitializer.load(ConfigFileApplicationContextInitializer.java:192)
at org.springframework.boot.context.initializer.ConfigFileApplicationContextInitializer.load(ConfigFileApplicationContextInitializer.java:134)
at org.springframework.boot.context.initializer.ConfigFileApplicationContextInitializer.initialize(ConfigFileApplicationContextInitializer.java:121)
at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:403)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:287)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:749)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:738)

From what I can tell, this is the wrong application context, since I am not using XML configuration but annotations to drive the configuration. Spring boot is automatically selecting this one and I need to tell it not to use the above. At least that is what I think I need to do.

I did search here and in the spring.io forums but no one seems to have the same issue.

Question: What drives the selection of an application context with the auto configuration?

What should I be looking at to resolve the above issue? What else do I need to provide to here help debug the auto configuration issue?

TIA,

Scott

Answer 1

I got the same problem. if you use maven check your pom.xml

remove conflict version in Spring Lib.

<properties>
       <hibernate.version>4.2.0.Final</hibernate.version>
       <mysql.connector.version>5.1.21</mysql.connector.version>
       <spring.version>3.2.2.RELEASE</spring.version>
</properties>

i remove this line

<spring.version>3.2.2.RELEASE</spring.version>

and in maven dependency just

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
</dependency>

Hope this help.

Answer 2

I was facing the same problem, and solved fixing the referencing to the boot-starter-parent pom.

At the pom.xml file I used:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>0.5.0.M6</version>
</parent>

I have some urgent issues to fix now, so I didn't inspected this parent pom to see what's so important here, but I hope this can help you - don't forget to verify the version you're using!