Build failed in Jenkins: java-identity-provider-v4 » Shibboleth IdP :: SAML Profile Implementation #386

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[INFO] 
[INFO] ------------------< net.shibboleth.idp:idp-saml-impl >------------------
[INFO] Building Shibboleth IdP :: SAML Profile Implementation 4.0.0-SNAPSHOT [19/33]
[INFO] --------------------------------[ jar ]---------------------------------
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[INFO] --- maven-clean-plugin:3.0.0:clean (default-clean) @ idp-saml-impl ---
[INFO] Deleting <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/target>
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[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (maven-version) @ idp-saml-impl ---
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[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ idp-saml-impl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 3 resources
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[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ idp-saml-impl ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 146 source files to <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/target/classes>
[INFO] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/saml2/profile/delegation/messaging/impl/ProcessSenderHandler.java>: Some input files use unchecked or unsafe operations.
[INFO] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/saml2/profile/delegation/messaging/impl/ProcessSenderHandler.java>: Recompile with -Xlint:unchecked for details.
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[ERROR] COMPILATION ERROR : 
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[ERROR] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/xmlobject/impl/DelegationPolicyImpl.java>:[28,32] cannot find symbol
  symbol:   class AbstractSAMLObject
  location: package org.opensaml.saml.common
[ERROR] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/xmlobject/impl/DelegationPolicyImpl.java>:[32,43] cannot find symbol
  symbol: class AbstractSAMLObject
[ERROR] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/xmlobject/impl/DelegationPolicyImpl.java>:[32,8] net.shibboleth.idp.saml.xmlobject.impl.DelegationPolicyImpl is not abstract and does not override abstract method getObjectMetadata() in org.opensaml.core.xml.XMLObject
[ERROR] <http://127.0.0.1:1583/jenkins/job/java-identity-provider-v4/net.shibboleth.idp$idp-saml-impl/ws/src/main/java/net/shibboleth/idp/saml/xmlobject/impl/DelegationPolicyImpl.java>:[58,45] cannot find symbol
  symbol:   method prepareForAssignment(java.lang.Long,java.lang.Long)
  location: class net.shibboleth.idp.saml.xmlobject.impl.DelegationPolicyImpl
[INFO] 4 errors 
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[JENKINS] Archiving disabled