NoSuchMethodError 异常

【问题标题】：NoSuchMethodError exceptionNoSuchMethodError 异常
【发布时间】：2015-02-08 11:07:47
【问题描述】：

关于我的环境的几句话： Geoserver 部署在容器（env Tomcat 7，dev Jetty）上，模块使用 postgresql 9.xx。 问题是，geoserver 使用 postgresql 8.4，我们在 web-inf/lib 上用 9.3 替换它（不要问为什么等等） 在我需要从 Postgres 引入 LargeObjects 处理之前，一切都运行良好。 在 dev env(jetty+netbeans) 上一切都很好，但是一旦 WAR 部署在 tomcat 上，我就会得到：

java.lang.NoSuchMethodError: org.postgresql.PGConnection.getLargeObjectAPI()Lorg/postgresql/largeobject/LargeObjectManager;

这是导致上述原因的代码 sn-p：

PGConnection pgDbconn = (PGConnection) dbConn;
LargeObjectManager largeObjectAPI = pgDbconn.getLargeObjectAPI(); // first method
LargeObjectManager lobj = new LargeObjectManager((BaseConnection) pgDbconn); // second - directly

根据我在http://grepcode.com/file/repo1.maven.org/maven2/postgresql/postgresql/8.4-702.jdbc4/org/postgresql/PGConnection.java#PGConnection.getFastpathAPI%28%29 和http://grepcode.com/file/repo1.maven.org/maven2/org.postgresql/postgresql/9.3-1102-jdbc41/org/postgresql/PGConnection.java#PGConnection.getLargeObjectAPI%28%29 上看到的内容 方法存在于两个罐子上。 任何想法为什么我得到 NoSuchMethodError，以及解决方案是什么？

编辑：只有 web-inf/lib 上的 postgresql9.xxx。 完整的堆栈跟踪

org.jboss.resteasy.spi.UnhandledException: java.lang.NoSuchMethodError: org.postgresql.PGConnection.getLargeObjectAPI()Lorg/postgresql/largeobject/LargeObjectManager;
    org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:365)
    org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:233)
    org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:209)
    org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:557)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:524)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:126)
    org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:27)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:74)
    org.geoserver.wms.animate.AnimatorFilter.doFilter(AnimatorFilter.java:70)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.monitor.MonitorFilter.doFilter(MonitorFilter.java:137)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.flow.controller.IpBlacklistFilter.doFilter(IpBlacklistFilter.java:92)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:45)
    org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:49)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:53)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.geoserver.security.filter.GeoServerBasicAuthenticationFilter.doFilter(GeoServerBasicAuthenticationFilter.java:82)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilter(GeoServerSecurityContextPersistenceFilter.java:52)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
    org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:134)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:75)
    org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:42)
    org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:47)
    org.geoserver.filters.FlushSafeFilter.doFilter(FlushSafeFilter.java:43)
    org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)

root cause

java.lang.NoSuchMethodError: org.postgresql.PGConnection.getLargeObjectAPI()Lorg/postgresql/largeobject/LargeObjectManager;
    org.geoserver.attachmentRS.AttachmentRS.getFile(AttachmentRS.java:310)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:483)
    org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:167)
    org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:269)
    org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:227)
    org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:216)
    org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:542)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:524)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:126)
    org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:27)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:74)
    org.geoserver.wms.animate.AnimatorFilter.doFilter(AnimatorFilter.java:70)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.monitor.MonitorFilter.doFilter(MonitorFilter.java:137)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.flow.controller.IpBlacklistFilter.doFilter(IpBlacklistFilter.java:92)
    org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
    org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:45)
    org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:49)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:53)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.geoserver.security.filter.GeoServerBasicAuthenticationFilter.doFilter(GeoServerBasicAuthenticationFilter.java:82)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilter(GeoServerSecurityContextPersistenceFilter.java:52)
    org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
    org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
    org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:134)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:75)
    org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:42)
    org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:47)
    org.geoserver.filters.FlushSafeFilter.doFilter(FlushSafeFilter.java:43)
    org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)

【问题讨论】：

  • 什么是完整的堆栈跟踪，运行时类路径上是否还有其他 postgres jar？
  • @Kayaman 另请注意，postgresql 工件将 groupid 从 8.xx 中的 postgresql 更改为 9.xx 中的 org.postgresql，这可能是问题吗？但是，两个 jar 中的所有其他方法都可以正常工作。
  • 工件更改不会导致NoSuchMethodError。 Geoserver 的源代码是否可用？我会去探听org.geoserver.attachmentRS.AttachmentRS.getFile(AttachmentRS.java:310)，但它仍然不会改变NSME 的简单原因是编译与运行时API 不同。但是，如果该方法从 7.3 开始就已经存在，那么您似乎不太可能将 7.3 之前的 JAR 文件隐藏在某个地方。
  • 你指向的类是我们的模块，（310是第一篇文章中的代码sn-p）使用野性的GetLargeObjectAPI。而且我 100% 确定任何地方都没有 7.3 之前的 JAR。

标签： java postgresql tomcat jakarta-ee


【解决方案1】：

那好吧。如下检查你神秘的 PGConnection 类：

PGConnection pgDbconn = (PGConnection) dbConn;
Class<PGConnection> clazz = pgDbconn.getClass();
for(Method m : clazz.getDeclaredMethods()) {
   log.info(m.getReturnType() + " " + m.getName());
}

也许这会更清楚地说明您的问题。

【讨论】：

  • 连接是org.postgresql.jdbc4.Jdbc4Connection，声明的方法只返回这个特定的类属性，但是它继承自jdbc2connection，它确实有getLargeObjectApi和getFastpathAPI。当使用 postgresql 8.4 或 9.3 时，从控制台应用程序存根运行的相同代码也可以正常工作。
  • 那么，使用getMethods() 怎么样。如果该方法存在（具有匹配的签名），请尝试使用反射调用它。有一些黑魔法正在发生。
  • 我同意黑魔法部分：方法的反射调用给了java.lang.reflect.InvocationTargetException: : Caused by: java.lang.NoSuchMethodError: org.postgresql.core.BaseConnection.getFastpathAPI()Lorg/postgresql/fastpath/Fastpath; at org.postgresql.largeobject.LargeObjectManager.&lt;init&gt;(LargeObjectManager.java:105) at org.postgresql.jdbc2.AbstractJdbc2Connection.getLargeObjectAPI(AbstractJdbc2Connection.java:382)
【解决方案2】：

我解决了。违规类是我的 WEB-INF/LIB 上名为 postgis-stubs 的 7KB JAR。可能它被加载而不是postgresql，导致NSME。 PGCONNECTION from postgis stubs

感谢@kayaman，感谢第二个用户，他提到了加载错误的驱动程序。

【讨论】：

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