Make changes to remove relativepath from child modules like core java (#15535)

* Make changes to remove relativepath from child modules like core java

* Change some version numbers to minimize changes

* Fix tests

* Make the test more generic so that we dont have to hard code strings as it will require change every new year

core-java-modules/java-spi/exchange-rate-api/pom.xml

@@ -3,6 +3,7 @@
     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>com.baeldung</groupId>
     <artifactId>exchange-rate-api</artifactId>
     <name>exchange-rate-api</name>
     <packaging>jar</packaging>

core-java-modules/java-spi/exchange-rate-impl/pom.xml

@@ -4,6 +4,7 @@
     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>
     <artifactId>exchange-rate-impl</artifactId>
+    <groupId>com.baeldung</groupId>
     <name>exchange-rate-impl</name>
     <packaging>jar</packaging>
 

core-java-modules/java-spi/pom.xml

@@ -3,8 +3,10 @@
     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>com.baeldung</groupId>
     <artifactId>java-spi</artifactId>
     <name>java-spi</name>
+    <version>1.0.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <parent>