feat: place enforce linkage checker plugin inside parent

Author: athakor

google-cloud-asset-bom/pom.xml

@@ -108,34 +108,6 @@
           <skip>true</skip>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-enforcer-plugin</artifactId>
-        <version>3.0.0-M3</version>
-        <dependencies>
-          <dependency>
-              <groupId>com.google.cloud.tools</groupId>
-              <artifactId>linkage-checker-enforcer-rules</artifactId>
-              <version>1.1.0</version>
-          </dependency>
-        </dependencies>
-        <executions>
-          <execution>
-            <id>enforce-linkage-checker</id>
-            <!-- Important! Should run after compile -->
-            <phase>verify</phase>
-            <goals>
-              <goal>enforce</goal>
-            </goals>
-            <configuration>
-              <rules>
-                <LinkageCheckerRule
-                        implementation="com.google.cloud.tools.dependencies.enforcer.LinkageCheckerRule"/>
-              </rules>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
     </plugins>
   </build>
 </project>

pom.xml

@@ -71,7 +71,7 @@
     <grpc.version>1.26.0</grpc.version>
     <protobuf.version>3.11.1</protobuf.version>
     <junit.version>4.13</junit.version>
-    <guava.version>28.1-android</guava.version>
+    <guava.version>28.2-android</guava.version>
     <threeten.version>1.4.0</threeten.version>
     <javax.annotations.version>1.3.2</javax.annotations.version>
     <animal-sniffer.version>1.18</animal-sniffer.version>
@@ -222,6 +222,31 @@
             <ignoredUnusedDeclaredDependencies>org.objenesis:objenesis</ignoredUnusedDeclaredDependencies>
           </configuration>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-enforcer-plugin</artifactId>
+          <version>3.0.0-M3</version>
+          <executions>
+            <execution>
+              <id>enforce</id>
+              <goals>
+                <goal>enforce</goal>
+              </goals>
+              <configuration>
+                <rules>
+                  <requireMavenVersion>
+                    <version>[3.0,)</version>
+                  </requireMavenVersion>
+                  <requireJavaVersion>
+                    <version>[1.7,)</version>
+                  </requireJavaVersion>
+                  <dependencyConvergence/>
+                  <requireUpperBoundDeps/>
+                </rules>
+              </configuration>
+            </execution>
+          </executions>
+        </plugin>
       </plugins>
     </pluginManagement>
   </build>