Centralizes version number

Author: spacether

modules/openapi-json-schema-generator-cli/pom.xml

@@ -24,6 +24,31 @@
             </resource>
         </resources>
         <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>flatten-maven-plugin</artifactId>
+                <version>1.3.0</version>
+                <configuration>
+                </configuration>
+                <executions>
+                    <!-- enable flattening -->
+                    <execution>
+                        <id>flatten</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>flatten</goal>
+                        </goals>
+                    </execution>
+                    <!-- ensure proper cleanup -->
+                    <execution>
+                        <id>flatten.clean</id>
+                        <phase>clean</phase>
+                        <goals>
+                            <goal>clean</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>

pom.xml

@@ -13,9 +13,6 @@
     <name>openapi-json-schema-generator-project</name>
     <!-- RELEASE_VERSION -->
     <version>${revision}</version>
-    <properties>
-        <revision>0.9.9</revision>
-    </properties>
     <!-- /RELEASE_VERSION -->
     <url>https://github.com/openapitools/openapi-json-schema-generator</url>
     <scm>
@@ -1178,8 +1175,6 @@
                 <module>modules/openapi-json-schema-generator-core</module>
                 <module>modules/openapi-json-schema-generator</module>
                 <module>modules/openapi-json-schema-generator-cli</module>
-                <module>modules/openapi-json-schema-generator-maven-plugin</module>
-                <module>modules/openapi-json-schema-generator-gradle-plugin</module>
                 <module>modules/openapi-json-schema-generator-online</module>
             </modules>
         </profile>
@@ -1246,9 +1241,11 @@
         </repository>
     </repositories>
     <properties>
+        <!-- RELEASE_VERSION -->
+        <revision>0.9.9</revision>
+        <!-- /RELEASE_VERSION -->
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-
         <archunit.version>0.23.1</archunit.version>
         <checkstyle.plugin.version>3.1.0</checkstyle.plugin.version>
         <commons-cli.version>1.4</commons-cli.version>