谷歌云消息传递和推送通知设备？(google cloud messaging and push notification to device?)

 经过一些谷歌搜索，我发现我需要在META-INF下创建aop.xml，并将aspectjweaver.jar添加到ant build.properties中的jvm选项。 由于我看到方法被截获，因此该方面似乎有效。 但我在启动时发现以下异常： 
 
 ERROR org.aspectj.weaver.bcel.BcelWorld - Unable to find class 'Object' in repository java.lang.ClassNotFoundException: Object not found - unable to determine URL at org.aspectj.apache.bcel.util.ClassLoaderRepository.loadClass(ClassLoaderRepository.java:292) ~[aspectjweaver.jar.0:1.7.3] at org.aspectj.weaver.bcel.BcelWorld.lookupJavaClass(BcelWorld.java:402) [aspectjweaver.jar.0:1.7.3] at org.aspectj.weaver.bcel.BcelWorld.resolveDelegate(BcelWorld.java:376) [aspectjweaver.jar.0:1.7.3] ... 
 
 我的@Aspect类看起来像这样： 
 
@Aspect
public class CaseInsensitiveEqualsAspect {

    @Pointcut("call(boolean equals(Object)) && args(compareString) && target(sourceString) && within(com.sample.package..*)")
    public void equalsPointcut(final Object compareString, final String sourceString) {}


    @Around("equalsPointcut(compareString, sourceString)")
    public Object around(final ProceedingJoinPoint joinPoint, final Object compareString, final String sourceString)
            throws Throwable {
        System.out.println(">>>>>>>>>>>>>>>>Invoking equalsIgnoreCase...");
        return sourceString.equalsIgnoreCase(compareString != null ? compareString.toString() : null);
    }
}

After some googling, I found that I need to create the aop.xml under META-INF and add the aspectjweaver.jar to the jvm options in ant build.properties. The aspect seems working since I saw the methods being intercepted. But I found below exception at startup:
 
ERROR org.aspectj.weaver.bcel.BcelWorld - Unable to find class 'Object' in repository java.lang.ClassNotFoundException: Object not found - unable to determine URL at org.aspectj.apache.bcel.util.ClassLoaderRepository.loadClass(ClassLoaderRepository.java:292) ~[aspectjweaver.jar.0:1.7.3] at org.aspectj.weaver.bcel.BcelWorld.lookupJavaClass(BcelWorld.java:402) [aspectjweaver.jar.0:1.7.3] at org.aspectj.weaver.bcel.BcelWorld.resolveDelegate(BcelWorld.java:376) [aspectjweaver.jar.0:1.7.3] ...
 
My @Aspect class looks like this:
 
@Aspect
public class CaseInsensitiveEqualsAspect {

    @Pointcut("call(boolean equals(Object)) && args(compareString) && target(sourceString) && within(com.sample.package..*)")
    public void equalsPointcut(final Object compareString, final String sourceString) {}


    @Around("equalsPointcut(compareString, sourceString)")
    public Object around(final ProceedingJoinPoint joinPoint, final Object compareString, final String sourceString)
            throws Throwable {
        System.out.println(">>>>>>>>>>>>>>>>Invoking equalsIgnoreCase...");
        return sourceString.equalsIgnoreCase(compareString != null ? compareString.toString() : null);
    }
}