Knowledge Base portlet compiling fails

• Type: Regression Bug
• Status: Closed
• Resolution: Duplicate
• Affects Version/s: 6.2.0 CE B1
• Fix Version/s: 6.2.0 CE B1
• Component/s: Knowledge Base
• Labels: None
• Environment: Tomcat 7.0 + MySQL 5. Portal 6.2.x GIT ID: 52032d258ac1453667d80092aa847d8ebed1902e.; Plugins 6.2.x EE GIT ID: dd75f782ee973e6b76d6da648dfbc8fe2dc4f78a.
• Fix Priority: 4

Steps to reproduce:

1. Execute "ant war" on the command window of Knowledge Base portlet.

Expected result:
Knowledge Base portlet should be compiled successfully.

Actual result:
Knowledge Base portlet fails to compile.

compile-java:
    [javac] Compiling 1 source file to D:\Plugins\liferay-plugins-ee\portlets\knowledge-base-portlet\docroot\WEB-INF\classes
    [javac] ----------
    [javac] 1. ERROR in D:\Plugins\liferay-plugins-ee\portlets\knowledge-base-portlet\docroot\WEB-INF\src\com\liferay\knowledgebase\admin\util\AdminSubscriptionSender.java (at line 96)
    [javac]     protected boolean hasPermission(Subscription subscription, User user)
    [javac]             throws Exception {
    [javac]                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    [javac] The method hasPermission(Subscription, User) of type AdminSubscriptionSender must override or implement a supertype method
    [javac] ----------
    [javac] 1 problem (1 error)

BUILD FAILED
D:\Plugins\liferay-plugins-ee\build-common-plugin.xml:675: The following error occurred while executing this line:
D:\Plugins\liferay-plugins-ee\build-common.xml:121: Compile failed; see the compiler error output for details.