Fix #345 Only log override warning if licenseMerges provided.

src/it/ISSUE-345-2/invoker.properties

@@ -0,0 +1,2 @@
+invoker.goals=clean license:add-third-party
+invoker.failureBehavior=fail-fast

src/it/ISSUE-345-2/license.merges

@@ -0,0 +1 @@
+APACHE|The Apache Software License, Version 2.0

src/it/ISSUE-345-2/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  #%L
+  License Maven Plugin
+  %%
+  Copyright (C) 2008 - 2011 CodeLutin, Codehaus, Tony Chemit
+  %%
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation, either version 3 of the
+  License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Lesser Public License for more details.
+
+  You should have received a copy of the GNU General Lesser Public
+  License along with this program.  If not, see
+  <http://www.gnu.org/licenses/lgpl-3.0.html>.
+  #L%
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.codehaus.mojo.license.test</groupId>
+  <artifactId>issue-345-2</artifactId>
+  <version>@pom.version@</version>
+
+  <name>License Test :: ISSUE-345-2</name>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <license.verbose>true</license.verbose>
+    <license.licenseMergesUrl>${project.baseUri}license.merges</license.licenseMergesUrl>
+  </properties>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>license-maven-plugin</artifactId>
+          <version>@pom.version@</version>
+          <configuration>
+            <licenseMerges>
+              <licenseMerge>Apache-2.0|The Apache Software License, Version 2.0</licenseMerge>
+            </licenseMerges>
+          </configuration>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>commons-logging</groupId>
+      <artifactId>commons-logging</artifactId>
+      <version>1.1.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <version>3.8.1</version>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/ISSUE-345-2/postbuild.groovy

@@ -0,0 +1,13 @@
+// Check that the licenseMergesUrl is used.
+file = new File(basedir, 'target/generated-sources/license/THIRD-PARTY.txt')
+assert file.exists()
+content = file.text
+assert !content.contains('the project has no dependencies.')
+assert content.contains('(APACHE) Commons Logging (commons-logging:commons-logging:1.1.1 - http://commons.apache.org/logging)')
+
+// Check that there's a warning about licenseMerges being overridden.
+file = new File(basedir, 'build.log')
+assert file.exists()
+content = file.text
+assert content.contains('licenseMerges will be overridden by licenseMergesUrl.')
+return true

src/it/ISSUE-345/invoker.properties

@@ -0,0 +1,2 @@
+invoker.goals=clean license:add-third-party
+invoker.failureBehavior=fail-fast

src/it/ISSUE-345/license.merges

@@ -0,0 +1 @@
+APACHE|The Apache Software License, Version 2.0

src/it/ISSUE-345/pom.xml

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  #%L
+  License Maven Plugin
+  %%
+  Copyright (C) 2008 - 2011 CodeLutin, Codehaus, Tony Chemit
+  %%
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation, either version 3 of the
+  License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Lesser Public License for more details.
+
+  You should have received a copy of the GNU General Lesser Public
+  License along with this program.  If not, see
+  <http://www.gnu.org/licenses/lgpl-3.0.html>.
+  #L%
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.codehaus.mojo.license.test</groupId>
+  <artifactId>issue-345</artifactId>
+  <version>@pom.version@</version>
+
+  <name>License Test :: ISSUE-345</name>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <license.verbose>true</license.verbose>
+    <license.licenseMergesUrl>${project.baseUri}license.merges</license.licenseMergesUrl>
+  </properties>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>license-maven-plugin</artifactId>
+          <version>@pom.version@</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>commons-logging</groupId>
+      <artifactId>commons-logging</artifactId>
+      <version>1.1.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <version>3.8.1</version>
+    </dependency>
+  </dependencies>
+
+</project>

src/it/ISSUE-345/postbuild.groovy

@@ -0,0 +1,13 @@
+// Check that the licenseMergesUrl is used.
+file = new File(basedir, 'target/generated-sources/license/THIRD-PARTY.txt')
+assert file.exists()
+content = file.text
+assert !content.contains('the project has no dependencies.')
+assert content.contains('(APACHE) Commons Logging (commons-logging:commons-logging:1.1.1 - http://commons.apache.org/logging)')
+
+// Since no licenseMerges was provided then there should be no warning.
+file = new File(basedir, 'build.log')
+assert file.exists()
+content = file.text
+assert !content.contains('licenseMerges will be overridden by licenseMergesUrl.')
+return true

src/main/java/org/codehaus/mojo/license/AbstractAddThirdPartyMojo.java

@@ -766,9 +766,12 @@ protected void init()
         }
         else if ( licenseMergesUrl != null )
         {
-            LOG.warn( "" );
-            LOG.warn( "licenseMerges will be overridden by licenseMergesUrl." );
-            LOG.warn( "" );
+            if ( licenseMerges != null )
+            {
+                LOG.warn( "" );
+                LOG.warn( "licenseMerges will be overridden by licenseMergesUrl." );
+                LOG.warn( "" );
+            }
             if ( UrlRequester.isStringUrl( licenseMergesUrl ) )
             {
                 licenseMerges = Arrays.asList( UrlRequester.getFromUrl( licenseMergesUrl ).split( "[\n\r]+" ) );