Pulling local-files 
Preparing to pull tomcat 
Pulling tomcat 
Downloading 'apache-tomcat-8.0.29.tar.gz'[====================================================] 100%
Preparing to build webapp 
/home/liuxg/snappy/desktop/tomcat-maven-webapp/parts/webapp/install/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/cacerts will be a dangling symlink
Building webapp 
mvn package
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building demo-artifact Maven Webapp 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.781 s
[INFO] Finished at: 2016-08-10T21:47:39+08:00
[INFO] Final Memory: 8M/240M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
Command '['/bin/sh', '/tmp/tmps81zv4hd', 'mvn', 'package']' returned non-zero exit status 1
liuxg@liuxg:~/snappy/desktop/tomcat-maven-webapp$ snapcraft --version
2.13.1