FailedConsole Output

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[INFO] Building JSF 0.1.0-SNAPSHOT
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[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ dgss1617-letta-teamb-jsf ---
[INFO] Deleting /var/lib/jenkins/workspace/LETTA 1617 Team B/jsf/target
[INFO] 
[INFO] --- jacoco-maven-plugin:0.7.7.201606060606:prepare-agent (pre-unit-test) @ dgss1617-letta-teamb-jsf ---
[INFO] argLine set to "-javaagent:/var/lib/jenkins/.m2/repository/org/jacoco/org.jacoco.agent/0.7.7.201606060606/org.jacoco.agent-0.7.7.201606060606-runtime.jar=destfile=/var/lib/jenkins/workspace/LETTA 1617 Team B/jsf/target/jacoco.exec,classdumpdir=/var/lib/jenkins/workspace/LETTA 1617 Team B/target/classes"
[INFO] 
[INFO] --- maven-resources-plugin:3.0.1:resources (default-resources) @ dgss1617-letta-teamb-jsf ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.5.1:compile (default-compile) @ dgss1617-letta-teamb-jsf ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 2 source files to /var/lib/jenkins/workspace/LETTA 1617 Team B/jsf/target/classes
[INFO] Some messages have been simplified; recompile with -Xdiags:verbose to get full output
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /var/lib/jenkins/workspace/LETTA 1617 Team B/jsf/src/main/java/es/uvigo/esei/dgss/lettab/jsf/UserManagedBean.java:[106,37] incompatible types: es.uvigo.esei.dgss.lettab.domain.User cannot be converted to java.lang.String
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] LETTA 16/17 Team B ................................. SUCCESS [  6.217 s]
[INFO] Domain ............................................. SUCCESS [ 16.068 s]
[INFO] Tests .............................................. SUCCESS [  6.072 s]
[INFO] Service ............................................ SUCCESS [ 11.072 s]
[INFO] REST ............................................... SUCCESS [  4.952 s]
[INFO] JSF ................................................ FAILURE [  1.440 s]
[INFO] EAR ................................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 49.637 s
[INFO] Finished at: 2016-11-23T17:38:07+01:00
[INFO] Final Memory: 58M/476M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.5.1:compile (default-compile) on project dgss1617-letta-teamb-jsf: Compilation failure
[ERROR] /var/lib/jenkins/workspace/LETTA 1617 Team B/jsf/src/main/java/es/uvigo/esei/dgss/lettab/jsf/UserManagedBean.java:[106,37] incompatible types: es.uvigo.esei.dgss.lettab.domain.User cannot be converted to java.lang.String
[ERROR] -> [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
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :dgss1617-letta-teamb-jsf
Sending e-mails to: mrjato@esei.uvigo.es