使用maven导入module时，报java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must ...-优快云博客

本文记录了在IDEA2019.1.2中导入Flink源码时遇到的java.security.InvalidAlgorithmParameterException错误。经过排查，问题并非由Maven版本引起，而是IDEA版本导致。解决方案是降级IDEA版本至2018.3.6，之后可以正常导入Flink源码。

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在新装IDEA导入Flink源码时出现一些问题，在此记录，希望能帮到大伙！

一、环境

　　IDEA2019.1.2（破解版）；OpenJDK 1.8.0_40；Maven 3.5.3/3.2.5/3.6.2

二、报错现象及解决方法

　　导入源码后，发现无法自动下载源码依赖，报错如下：

java.lang.RuntimeException: org.apache.maven.model.resolution.UnresolvableModelException: Failure to transfer org.apache:apache:pom:18 from http://maven.aliyun.com/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of alimaven has elapsed or updates are forced. Original error: Could not transfer artifact org.apache:apache:pom:18 from/to alimaven (http://maven.aliyun.com/nexus/content/groups/public/): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
    at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:197)
    at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java: