springboot: mchange-commons-java-0.2.11.jar (系統找不到指定的文件)

Springboot框架，引入C3P0,啟動出現Bug

The Class-Path manifest attribute in D:\develop\maven\repository\com\mchange\c3p0\0.9.5.5\c3p0-0.9.5.5.jar referenced one or more files that do not exist: file:/D:/develop/maven/repository/com/mchange/c3p0/0.9.5.5/mchange-commons-java-0.2.19.jar

 這里引用的依賴是

<dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.5</version>
</dependency>

系統找不到mchange-commons-java-0.2.19.jar怎么辦？

添加對應依賴

<dependency>
            <groupId>com.mchange</groupId>
            <artifactId>mchange-commons-java</artifactId>
            <version>0.2.19</version>
</dependency>

然后打開本地倉庫找到mchange-commons-java-0.2.19.jar，把它拷貝到傳c3p0對應版本目錄下