切入点格式错误:类不能为null [英] Pointcut is malformed: Class must not be null
问题描述
出乎意料的是,在Eclipse中,我遇到了几个Aspects类,出现"Pointcut is malformed: Class must not be null
"错误.该代码可以正常工作,但是在这些类中没有进行任何更改的情况下,Eclipse突然开始报告该错误.
我试图找出问题的根源是Eclipse平台/插件更新还是项目的依赖项更新.
Out of a blue I'm getting "Pointcut is malformed: Class must not be null
" error in Eclipse with a couple of Aspects classes. The code works fine but, without a change in those classes, Eclipse suddenly started reporting the error.
I'm trying to track down if the source of the problem is a eclipse platform/plugin update or a project's dependency update.
我正在使用Spring Tool Suite版本:3.7.1.RELEASE构建ID:201510041213平台:Eclipse Mars.1(4.5.1)和Spring IO Platform 2.0.0.
I'm using Spring Tool Suite Version: 3.7.1.RELEASE Build Id: 201510041213 Platform: Eclipse Mars.1 (4.5.1) and Spring IO Platform 2.0.0.
有人有同样的问题吗?
我正在发布方面代码之一(尽管问题可能不在这里)
I'm posting one of the aspects code (although the problem probably is not here)
@Aspect
@Order(200)
@Component
public class FooAspect {
@Around("execution(public org.springframework.http.ResponseEntity com.acme.endpoints.controller..*.*(..)) && " +
"@target(org.springframework.web.bind.annotation.RestController) && " +
"@annotation(com.acme.endpoints.annotations.FooAnnotation)")
public Object doCurrencyConversion(ProceedingJoinPoint pjp) throws Throwable {
String bar = extractBar(pjp);
ResponseEntity<?> retVal;
retVal = (ResponseEntity<?>) pjp.proceed();
processFooBar(retVal, bar);
return retVal;
}
private String extractBar(ProceedingJoinPoint pjp) {
return "...";
}
private void processFooBar(ResponseEntity<?> retVal, String targetBar) {
// ...
}
}
推荐答案
现在,错误已消失.我所做的就是改变了管理Spring依赖项的方式.
Now the errors have gone away. What I have done is change the way I managed the Spring dependencies.
在将平台BOM导入父POM之前,我的所有模块都按照Spring网站中的描述继承了它,
Before I imported the platform BOM in my parent POM so that all my modules inherit it as described in the Spring website with:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement><repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>http://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
使用此配置,某些版本会覆盖无法使用的地方,并且由于我使用的BOM表版本是SNAPSHOT,因此依赖项的实际版本每天都在更改.
With this configuration, some version overrides where not working and since the BOM version I'm using is a SNAPSHOT, the actual versions of the dependencies where changing everyday.
我所做的是将BOM表设置为我的父母的父母,这样,版本覆盖可以按预期工作,并且编译时没有提示:
What I did was to set the BOM as my parent's parent, this way the version overrides worked as expected an everything compiled without a hint:
<parent>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</version>
<relativePath />
</parent>
<repositories>
<repository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/libs-snapshot</url>
<snapshots><enabled>true</enabled></snapshots>
</repository>
</repositories>
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