Maven build warnings

[stevehu]

[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.networknt:rpc-router:jar:1.5.4
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: com.networknt:status:jar -> duplicate declaration of version (?) @ com.networknt:rpc-router:[unknown-version], /home/steve/networknt/light-hybrid-4j/rpc-router/pom.xml, line 45, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-deploy-plugin is missing. @ com.networknt:rpc-router:[unknown-version], /home/steve/networknt/light-hybrid-4j/rpc-router/pom.xml
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.networknt:rpc-security:jar:1.5.4
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: com.networknt:status:jar -> duplicate declaration of version (?) @ com.networknt:rpc-security:[unknown-version], /home/steve/networknt/light-hybrid-4j/rpc-security/pom.xml, line 45, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-deploy-plugin is missing. @ com.networknt:rpc-security:[unknown-version], /home/steve/networknt/light-hybrid-4j/rpc-security/pom.xml
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.networknt:light-hybrid-4j:pom:1.5.4
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-deploy-plugin is missing.
[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]