java.lang.IncompatibleClassChangeError:实现类部署到应用程序引擎 [英] java.lang.IncompatibleClassChangeError: Implementing class deploying to app engine
问题描述
****从servlet $ b未捕获异常$ b java.lang.IncompatibleClassChangeError:在java.lang.ClassLoader.defineClass1在实现类
com.google.appengine.runtime.Request.process-139e1bda14d5aebc(Request.java)
(本机方法)$在java.lang.ClassLoader.defineClass中的b $ b(ClassLoader.java:634)在java.security.SecureClassLoader.defineClass中的
(SecureClassLoader.java:142)在java.net.URLClassLoader.defineClass上的
( $ java.util中的
。
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang。方法.invoke(Method.java:616)$ java.util.ClassLoader.loadClass上的
(ClassLoader.java:266)
at com.sun.jersey.api.core.ScanningResourceConfig.init( ScanningResourceConfig.java:79)
在com.sun.jersey.api。 core.PackagesResourceConfig.init(PackagesResourceConfig.java:104)
at com.sun.jersey.api.core.PackagesResourceConfig。< init>(PackagesResourceConfig.java:78)
at com.sun.jersey .api.core.PackagesResourceConfig<初始化>(PackagesResourceConfig.java:89)
。在com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:700)
。在com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:678)
在com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:203)$在com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)b $ b。在com.sun.jersey.spi.container.servlet.ServletContainer.init
(ServletContainer.java :557)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHo lder.java:263)在org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
在org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685
)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
在org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
在org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
在org.mortbay .component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
,位于com.google.tracing.TraceContext $ TraceContextRunnable.runInContext(TraceContext.java:452)
,位于com.google.tracing.TraceContext $ TraceContextRunnable $ 1.run(TraceContext.java:458)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:698)
at com.google.tracing.TraceContext $ AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext。 Ĵ ava:336)
at com.google.tracing.TraceContext $ AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
at com.google.tracing.TraceContext $ TraceContextRunnable.run(TraceContext.java:456)
at java.lang.Thread.run(Thread.java:679)****
<
这个异常是由asm-4.0.jar和asm-3.1之间的兼容性问题引起的。罐。使用新版本的AppEngine,使用了asm-4.0.jar,并且它与依赖于asm-3.1.jar的Jersey不兼容。为了使泽西仍然在GAE 1.7上工作,你必须删除对asm-4.0.jar的依赖。
看到这篇文章: http://cloudvane.com/2012/09/23/problem-with -google-appengine-and-jersey-with-java /
经过测试和验证,如下所示:
- 将asm-3.3.1.jar添加到您的war-> lib
- 将它添加到您的re build path中
- 删除asm-4.0.jar
- 项目 - >属性 - > Google - > AppEngine:将Datanuclueus切换为v1
ol> - add asm-3.3.1.jar to your war->lib
- add it to you re build path
- remove physically the asm-4.0.jar
- Project -> Properties -> Google -> AppEngine: switch Datanuclueus to v1
这就是它!
I wrote a couple of REST services using Jersey 1.13 on JRE 1.6. Everything runs fine locally, but after I deploy to GAE I get this error:
****Uncaught exception from servlet
java.lang.IncompatibleClassChangeError: Implementing class
at com.google.appengine.runtime.Request.process-139e1bda14d5aebc(Request.java)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:79)
at com.sun.jersey.api.core.PackagesResourceConfig.init(PackagesResourceConfig.java:104)
at com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:78)
at com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:89)
at com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:700)
at com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:678)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:203)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
at javax.servlet.GenericServlet.init(GenericServlet.java:212)
at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:452)
at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:458)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:698)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:336)
at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:456)
at java.lang.Thread.run(Thread.java:679)****
Any help would be appreciated.
This exception is caused by compatibility issues between asm-4.0.jar and asm-3.1.jar. With the new Version of AppEngine, asm-4.0.jar is used and it is not compatible with Jersey, which relies on asm-3.1.jar. To make Jersey still work on GAE 1.7, you have to remove the dependency on asm-4.0.jar.
See this post : http://cloudvane.com/2012/09/23/problem-with-google-appengine-and-jersey-with-java/
It s tested and verified, like that:
That s it!
这篇关于java.lang.IncompatibleClassChangeError:实现类部署到应用程序引擎的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!