IT for MNG-5452: ${maven.build.timestamp} should use UTC instead of local timezone (or be configurable)

its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng5452MavenBuildTimestampUTCTest.java

@@ -0,0 +1,56 @@
+package org.apache.maven.it;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.File;
+import java.util.List;
+import java.util.Properties;
+
+import org.apache.maven.it.util.ResourceExtractor;
+
+/**
+ * This is a test set for <a href="http://jira.codehaus.org/browse/MNG-5452">MNG-4091</a>
+ * Make sure that the maven.build.timestamp is in UTC.
+ */
+public class MavenITmng5452MavenBuildTimestampUTCTest
+    extends AbstractMavenIntegrationTestCase
+{
+
+    public MavenITmng5452MavenBuildTimestampUTCTest()
+    {
+        super( "[3.2.2-SNAPSHOT,)" );
+    }
+
+    public void testMavenBuildTimestampIsUsingUTC()
+        throws Exception
+    {
+        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-5452-maven-build-timestamp-utc" );
+
+        Verifier verifier = newVerifier( testDir.getAbsolutePath() );
+        verifier.executeGoal( "process-resources" );
+        //
+        // We have a timestamp format = yyyyMMdd:HHmm:z, where the final element is the timezone which should be UTC
+        //
+        Properties filteredProperties = verifier.loadProperties( "target/classes/filtered.properties" );
+        String timestamp = filteredProperties.getProperty( "timestamp" );
+        assertNotNull( timestamp );
+        assertTrue( timestamp.endsWith( "UTC" ) );
+    }
+}

its/core-it-suite/src/test/resources/mng-5452-maven-build-timestamp-utc/pom.xml

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+<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/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>scratch</groupId>
+  <artifactId>scratch</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <properties>
+    <timestamp>${maven.build.timestamp}</timestamp>
+    <maven.build.timestamp.format>yyyyMMdd:HHmm:z</maven.build.timestamp.format>
+  </properties>
+  <build>
+    <resources>
+      <resource>
+        <directory>src/main/resources</directory>
+        <filtering>true</filtering>
+      </resource>  
+    </resources>
+  </build>
+</project>

its/core-it-suite/src/test/resources/mng-5452-maven-build-timestamp-utc/src/main/resources/filtered.properties

@@ -0,0 +1 @@
+timestamp=${timestamp}