从 JBoss 7 EAP 中排除提供的 jackson 版本 [英] Exclude provided jackson version from JBoss 7 EAP

问题描述

我正在尝试使用 JBoss 7 EAP 提供的较新版本的 Jackson.为了解决我的问题，我创建了一个 jboss-deployment-structure.xml 文件，该文件包含在我的战争部署中.

I am trying to use a newer version of Jackson as JBoss 7 EAP delivers. To solve my issue I have created a jboss-deployment-structure.xml file which is contained in my war deployment.

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">
    <deployment>
        <exclusions>
            <!--<module name="com.fasterxml.jackson.core.jackson-core" slot="main" />-->
            <!--<module name="com.fasterxml.jackson.core.jackson-annotations" slot="main" />-->
            <module name="com.fasterxml.jackson.core.jackson-databind" slot="main" />
        </exclusions>
    </deployment>
</jboss-deployment-structure>

但似乎 JBoss 使用的是交付的模块而不是提供的依赖项.

But it seems that JBoss uses the delivered module instead of the provided dependency.

模块类加载器来自本地模块的com.fasterxml.jackson.core.jackson-databind:main"loader @134593bf(查找器:本地模块查找器@4bb4de6a(根:...jboss-eap-7.0modules,...jboss-eap-7.0modulessystemlayersase))

ModuleClassLoader for Module "com.fasterxml.jackson.core.jackson-databind:main" from local module loader @134593bf (finder: local module finder @4bb4de6a (roots: ...jboss-eap-7.0modules,...jboss-eap-7.0modulessystemlayersase))

我发现了一个类似的问题 JBoss 7 类加载器 -- 排除模块实现，但它对我没有帮助.

I have found a similar question JBoss 7 Classloader -- Exclude Module Implementation but it didn't help me.

我错过了什么?

推荐答案

我遇到了与 Jackson 完全相同的问题，我使用这个 jboss-deployment-structure.xml<在我的 EAP 7 中使用了它/代码>:

I ran into the exact same problem with Jackson, and I got it to work in my EAP 7 using this jboss-deployment-structure.xml :

<jboss-deployment-structure>
    <deployment>
        <exclusions>
            <module name="com.fasterxml.jackson.core.jackson-core" />
            <module name="com.fasterxml.jackson.core.jackson-annotations" />
            <module name="com.fasterxml.jackson.core.jackson-databind" />
            <module name="com.fasterxml.jackson.jaxrs.jackson-jaxrs-json-provider" />
            <module name="org.jboss.resteasy.resteasy-jackson2-provider" />
            <module name="org.jboss.resteasy.resteasy-jackson-provider" />
        </exclusions>
    </deployment>
</jboss-deployment-structure>

看起来只要任何其他模块在各自的module.xml中将jackson列为它们的依赖项，它就不会被排除在外，EAP可以甚至不要为此发出警告.

It appears like as long as any other modules list jackson as their dependency in their respective module.xml, it just simply doesn't get excluded, and EAP can't be arsed to even throw a warning about it.

编辑 2018-02-19: 当从 EAP 7.0.0 升级到 7.1.0 时，由于更新的 Jackson jars，事情再次出现问题.

Edit 2018-02-19: When upgrading from EAP 7.0.0 to 7.1.0, things broke again, owing to updated Jackson jars.

这是堆栈跟踪的关键部分:

This is the crucial part of the stacktrace:

Caused by: javax.ejb.EJBException: WFLYEJB0442: Unexpected Error
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:185)
[...]
    at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:161) [wildfly-ee-7.1.0.GA-redhat-11.jar:7.1.0.GA-redhat-11]
    ... 11 more
Caused by: java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    [...]()Lcom/fasterxml/jackson/databind/ObjectMapper; @89: invokevirtual
  Reason:
    Type 'com/fasterxml/jackson/datatype/jdk8/Jdk8Module' (current frame, stack[1]) is not assignable to 'com/fasterxml/jackson/databind/Module'

所以我们也排除了这些:

So we exclude those as well:

<jboss-deployment-structure>
    <deployment>
        <exclusions>
            <module name="com.fasterxml.jackson.core.jackson-core" />
            <module name="com.fasterxml.jackson.core.jackson-annotations" />
            <module name="com.fasterxml.jackson.core.jackson-databind" />
            <module name="com.fasterxml.jackson.datatype.jackson-datatype-jdk8" />
            <module name="com.fasterxml.jackson.datatype.jackson-datatype-jsr310" />
            <module name="com.fasterxml.jackson.jaxrs.jackson-jaxrs-json-provider" />
            <module name="org.jboss.resteasy.resteasy-jackson2-provider" />
            <module name="org.jboss.resteasy.resteasy-jackson-provider" />
        </exclusions>
    </deployment>
</jboss-deployment-structure>

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