Add a test to ensure we handle relocations, closes #289

Signed-off-by: Kevin Conner <kev.conner@gmail.com>

src/test/java/org/cyclonedx/maven/Issue289Test.java

@@ -0,0 +1,36 @@
+package org.cyclonedx.maven;
+
+import java.io.File;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import io.takari.maven.testing.executor.MavenRuntime.MavenRuntimeBuilder;
+import io.takari.maven.testing.executor.MavenVersions;
+import io.takari.maven.testing.executor.junit.MavenJUnitTestRunner;
+
+/**
+ * test for https://github.com/CycloneDX/cyclonedx-maven-plugin/issues/289
+ * NPE when handling relocations
+ */
+@RunWith(MavenJUnitTestRunner.class)
+@MavenVersions({"3.6.3"})
+public class Issue289Test extends BaseMavenVerifier {
+
+    public Issue289Test(MavenRuntimeBuilder runtimeBuilder) throws Exception {
+        super(runtimeBuilder);
+    }
+
+    @Test
+    public void testForRelocations() throws Exception {
+        File projDir = resources.getBasedir("issue-289");
+
+        verifier
+                .forProject(projDir)
+                .withCliOption("-Dcurrent.version=" + getCurrentVersion()) // inject cyclonedx-maven-plugin version
+                .withCliOption("-X") // debug
+                .withCliOption("-B")
+                .execute("clean", "package")
+                .assertErrorFreeLog();
+    }
+}

src/test/resources/issue-289/dependency1/pom.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>issue289_parent</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>issue289_dependency1</artifactId>
+
+    <name>Dependency 1</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>axis</groupId>
+            <artifactId>axis-ant</artifactId>
+            <version>1.4</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>axis</groupId>
+            <artifactId>axis</artifactId>
+            <version>1.4</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

src/test/resources/issue-289/dependency2/pom.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>issue289_parent</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>issue289_dependency2</artifactId>
+
+    <name>Dependency 2</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>axis</groupId>
+            <artifactId>axis-ant</artifactId>
+            <version>1.3</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.example</groupId>
+            <artifactId>issue289_dependency1</artifactId>
+            <version>1.0.0</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

src/test/resources/issue-289/pom.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>com.example</groupId>
+    <artifactId>issue289_parent</artifactId>
+    <packaging>pom</packaging>
+    <version>1.0.0</version>
+
+    <name>Issue 289 Parent</name>
+
+    <modules>
+        <module>dependency1</module>
+        <module>dependency2</module>
+    </modules>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.cyclonedx</groupId>
+                <artifactId>cyclonedx-maven-plugin</artifactId>
+                <version>${current.version}</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>makeAggregateBom</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <projectType>library</projectType>
+                    <schemaVersion>1.4</schemaVersion>
+                    <includeBomSerialNumber>true</includeBomSerialNumber>
+                    <includeCompileScope>true</includeCompileScope>
+                    <includeProvidedScope>false</includeProvidedScope>
+                    <includeRuntimeScope>false</includeRuntimeScope>
+                    <includeSystemScope>false</includeSystemScope>
+                    <includeTestScope>false</includeTestScope>
+                    <includeLicenseText>false</includeLicenseText>
+                    <outputFormat>xml</outputFormat>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+</project>