Problem: Error reporting MVN compile time
1) Checksum Validation Failed, expected < ! DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5.
2) read/Users/m2/repository/com/alibaba/druid/1.0.20/druid – 1.0.20. An error occurred when the jar; error in opening zip file

[INFO] --------------------------------[ jar ]---------------------------------
Downloading from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.pom
Downloaded from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.pom (0 B at 0 B/s)
[WARNING] The POM for org.springframework:spring-core:jar:4.2.6.RELEASE is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
Downloading from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
[WARNING] Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5 from codelds for https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
[WARNING] Could not validate integrity of download from https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar: Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5
[WARNING] Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5 from codelds for https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
Downloaded from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar (7.5 kB at 1.9 kB/s)

. . . .
[ERROR] Error while reading /Users/.m2/repository/com/alibaba/druid/1.0.20/druid-1.0.20.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/hibernate/hibernate-core/4.3.11.Final/hibernate-core-4.3.11.Final.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/hibernate/hibernate-ehcache/4.3.11.Final/hibernate-ehcache-4.3.11.Final.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/quartz-scheduler/quartz/2.2.2/quartz-2.2.2.jar; error in opening zip file
[ERROR] Error when reading /Users/.m2/repository/com/oracle/ojdbc6/11.2.0.3/ojdbc6-11.2.0.3.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/com/alibaba/druid/1.0.20/druid-1.0.20.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/hibernate/hibernate-core/4.3.11.Final/hibernate-core-4.3.11.Final.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/hibernate/hibernate-ehcache/4.3.11.Final/hibernate-ehcache-4.3.11.Final.jar; error in opening zip file
[ERROR] Error reading /Users/.m2/repository/org/quartz-scheduler/quartz/2.2.2/quartz-2.2.2.jar; error in opening zip file
[ERROR] Error when reading /Users/.m2/repository/com/oracle/ojdbc6/11.2.0.3/ojdbc6-11.2.0.3.jar; error in opening zip file

Analysis:
Asked under Baidu, said the JAR package download problem, may be the permission of what the problem, Blah blah blah…
Solution:
Watch the pom project, refers to the remote warehouse, https://code.lds.org/nexus/content/groups/main-repo,
Browser view found that the site is being maintained, so changed the address of the remote warehouse, with the central warehouse to download the compilation can be;