idea 打包 报错maven-shade-plugin:2.4.3:shade (default) on project xxx : Error creating shaded jar: null

问题背景:版本

idea版本:ideaIU-2020.1.2
JDK:1.8.0_141
maven版本:3.6.3

问题原因:maven-shade-plugin的版本太低

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <minimizeJar>true</minimizeJar>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

执行package的时候 报错

解决办法:需要把maven-shade-plugin的版本改成3.2.1

<plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <minimizeJar>true</minimizeJar>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

执行成功: