java - Jersey /REST--NoSuchMethodError : com. sun.jersey.core.reflection.ReflectionHelper.getContextClassLoaderPA()Ljava/security/PrivilegedAction;

Question

我在尝试使用 jersey 构建 REST 服务时收到 NoSuchMethodError。任何帮助将不胜感激。

我的 POM.xml :

    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-core</artifactId>
        <version>1.19</version>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-servlet</artifactId>
        <version>1.19</version>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.19</version>
    </dependency>

我的 web.xml :

<servlet>
    <servlet-name>Rest</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.property.packages</param-name>
        <param-value>com.example.serversideauthservice.resources.AuthResource</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Rest</servlet-name>
    <url-pattern>/auth/*</url-pattern>
</servlet-mapping>

不确定我做错了什么，但是当我检查 API 文档时，似乎我在 mvn 依赖项中有正确的版本。

这是运行时的堆栈跟踪。

[INFO] INFO: Scanning for root resource and provider classes in the packages:
[INFO]   com.example.serversideauthservice.resources.AuthResource
[INFO] Feb 21, 2015 2:35:26 PM com.google.apphosting.utils.jetty.JettyLogger warn
**[INFO] WARNING: failed Rest: java.lang.NoSuchMethodError: com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoaderPA()Ljava/security/PrivilegedAction;**
[INFO] Feb 21, 2015 2:35:26 PM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: failed com.google.appengine.tools.development.DevAppEngineWebAppContext@7f74a932{/,D:\taxmarkets_main\taxmarket\target\taxmarket-1.0-SNAPSHOT}: java.lang.NoSuchMethodError: com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoaderPA()Ljava/security/PrivilegedAction;
[INFO] Feb 21, 2015 2:35:26 PM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: failed JettyContainerService$ApiProxyHandler@660382ce: java.lang.NoSuchMethodError: com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoaderPA()Ljava/security/PrivilegedAction;
[INFO] Feb 21, 2015 2:35:26 PM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: Error starting handlers
[INFO] java.lang.NoSuchMethodError: com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoaderPA()Ljava/security/PrivilegedAction;
[INFO]  at com.sun.jersey.spi.scanning.AnnotationScannerListener.<init>(AnnotationScannerListener.java:94)
[INFO]  at com.sun.jersey.spi.scanning.PathProviderScannerListener.<init>(PathProviderScannerListener.java:59)
[INFO]  at com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:79)
[INFO]  at com.sun.jersey.api.core.PackagesResourceConfig.init(PackagesResourceConfig.java:104)
[INFO]  at com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:78)
[INFO]  at com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:89)
[INFO]  at com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:696)
[INFO]  at com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:674)
[INFO]  at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:205)

Answer 1

我最近遇到了这个问题。检查名称为 com.sun.jersey.core.reflection.ReflectionHelper 的类是否存在于任何其他 jar 中。

对我来说，我也有 caliper.jar，它是从那里加载的。该类没有 getContextClassLoaderPA。

执行 grep -ir com.sun.jersey.core.reflection.ReflectionHelper * 以查看是否有任何其他 jar 显示相同的类。