Compilation error while doing mvn clean install on repository branch 2.22.04-SNAPSHOT with java version 1.7

Compilation error while doing mvn clean install on repository branch 2.22.04-SNAPSHOT with java version 1.7

[INFO] skip non existing resourceDirectory D:\Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\resources
[INFO] Copying 3 resources
[INFO]
[INFO] — maven-compiler-plugin:2.3.2:compile (default-compile) @ hippo-repository-tools-documentation —
[INFO] Compiling 1 source file to D:\Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[3,22] error: package com.sun.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[4,0] error: package com.sun.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[5,37] error: package com.sun.tools.doclets.standard does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[6,28] error: package com.sun.tools.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[22,59] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[33,32] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[39,35] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[19,8] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[25,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[30,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,31] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,53] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[41,27] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[42,18] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[63,38] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[63,55] error: cannot find symbol
[INFO] 17 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Repository ........................................ SUCCESS [3.179s]
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[INFO] Repository LDAP based Authorization ............... SUCCESS [1.942s]
[INFO] Repository Documentation tools .................... FAILURE [0.640s]
[INFO] Repository Checker Application .................... SKIPPED
[INFO] Repository Resources .............................. SKIPPED
[INFO] Repository Servlets ............................... SKIPPED
[INFO] Repository Dependencies ........................... SKIPPED
[INFO] Repository JCA .................................... SKIPPED
[INFO] Repository Application ............................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:24.175s
[INFO] Finished at: Fri Mar 30 10:56:09 CEST 2012
[INFO] Final Memory: 26M/138M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project hippo-repository-tools-documentation: Compilation failure: Compilation failure:
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[3,22] error: package com.sun.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[4,0] error: package com.sun.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[5,37] error: package com.sun.tools.doclets.standard does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[6,28] error: package com.sun.tools.javadoc does not exist
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[22,59] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[33,32] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[39,35] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[19,8] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[25,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[30,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,31] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,53] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[36,15] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[41,27] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[42,18] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[63,38] error: cannot find symbol
[ERROR] \Projects\hippocms\repository\branch-repo-2.22.xx\tools\documentation\src\main\java\org\hippoecm\tools\documentation\ExcludeDoclet.java:[63,55] error: cannot find symbol