Failed build maven-gpg-plugin in openstack-java-sdk

INFO] Scanning for projects...

[WARNING]

[WARNING] Some problems were encountered while building the effective model for

com.woorea:openstack-java-sdk:pom:3.2.2-SNAPSHOT

[WARNING] 'parent.relativePath' points at com.woorea:openstack-java-sdk instead of

org.sonatype.oss:oss-parent, please verify your project structure @ line 14, column 10

[WARNING]

[WARNING] It is highly recommended to fix these problems because they threaten the stability of

your build.

[WARNING]

[WARNING] For this reason, future Maven versions might no longer support building such

malformed projects.

[WARNING]

[INFO]

[INFO] ------------------------------------------------------------------------

[INFO] Building OpenStack Java SDK 3.2.2-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO]

[INFO] --- maven-enforcer-plugin:1.0:enforce (enforce-maven) @ openstack-java-sdk ---

[INFO]

[INFO] --- maven-gpg-plugin:1.4:sign (sign-artifacts) @ openstack-java-sdk ---

[INFO] ------------------------------------------------------------------------

[INFO] BUILD FAILURE

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 0.640s

[INFO] Finished at: Wed Mar 05 16:42:35 CST 2014

[INFO] Final Memory: 5M/15M

[INFO] ------------------------------------------------------------------------

[ERROR]  Failed to execute goal org.apache.maven.plugins:maven-gpg-plugin:1.4:sign (sign-

artifacts) on project openstack-java-sdk: Cannot obtain passphrase in batch mode -> [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/MojoFailureException

以上这个问题，网上已有相关帖子：

https://lists.launchpad.net/openstack/msg24993.html

http://osdir.com/ml/openstack-cloud-computing/2013-07/msg00190.html

具体问题可以详细的看看Gnu 的GPG 的文档

GPG下载地址

http://ftp.gpg4win.org/

GnuPG is the GNU project's complete and free implementation of the OpenPGP standard as defined by RFC4880. GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications. A wealth of frontend applications and libraries are available. Version 2 of GnuPG also provides support for S/MIME.

GnuPG   （简称   GPG   ，来自   http://www.gnupg.org  ）是   PGP   （   Pretty Good Privacy   ）标准的一个免费实现，无论类   UNIX   平台还是   Windows   平台都可使用它。   GPG   能帮助我们为文件生成签名、管理密钥以及验证签名等。

如果想偷懒，可以下载这个资源 http://download.youkuaiyun.com/detail/shatelang/6996959是编译好的openstack-java-sdk，相应的jar文件在每个模块的target目录下