Warnings about that files do not have the expected license header

[smuda]

When building the plugin, the plugin maven-license-plugin reports a number of warnings:

[INFO] --- maven-license-plugin:1.9.0:check (default) @ license-verifier-maven-plugin ---
[INFO] Checking licenses...
[WARNING] Property 'strictCheck' is not enabled. Please consider adding <strictCheck>true</strictCheck> in your pom.xml file.
[WARNING] See http://code.google.com/p/maven-license-plugin/wiki/Configuration for more information.
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/changes/changes.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicExcludeTest/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicMultiSubModuleCallTest/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicMultiSubModuleCallTest/src/main/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicMultiTest/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicMultiTest/src/main/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicReportTest/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTest/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestConfiguration/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTest/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestConfigurationFail/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicReportTest/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestLicensesViaJar/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestConfigurationFail/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestLicensesViaJarDifferentLocation/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestVerbose/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestVerboseCommandLine/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestConfiguration/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/mlv-setup/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestVerbose/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/basicTestVerboseCommandLine/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/mlv-setup/src/main/resources/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/reportExcludesTest/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/reportExcludesTest/src/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/mlv-setup-different-location/src/main/resources/different/location/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/suposeTest/src/main/licenses/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/AbstractLicenseVerifierPlugIn.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/mlv-setup-different-location/invoker.properties
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/it/settings.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/filter/PatternExcludeFilter.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseInformation.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/licenses/LicensesFile.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidator.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/LicenseVerifierMojo.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/LicenseVerifierReport.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseData.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/javadoc/com/soebes/maven/plugins/mlv/package.html
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/java/com/soebes/maven/plugins/licenseverifier/ArtifactComperator.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/site/apt/categories.apt
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/site/apt/licenses.apt
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/main/mdo/licenses.mdo
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/site/fml/faq.fml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/site/resources/licenses.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorIdTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/site/site.xml
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorStrictTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorValidOnlyTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorWarningOnlyTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/licenses/LicenseValidatorInvalidOnlyTest.java
[INFO] Missing header in: /github/ayoy/Maven-License-Verifier-Plugin/src/test/java/com/soebes/maven/plugins/licenseverifier/TestBase.java
[WARNING] Some files do not have the expected license header