Fix JDK 17+ build failure by restricting tools.jar dependency

Modified maven/parparvm/pom.xml to move the system dependency on tools.jar into a Maven profile active only for JDKs < 9.
This prevents the 'Could not find artifact com.sun:tools:jar:1.5.0' error on newer JDKs (like 17+) where tools.jar has been removed.

Author: google-labs-jules[bot]

maven/parparvm/pom.xml

@@ -85,15 +85,6 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-antrun-plugin</artifactId>
-                <dependencies>
-                    <dependency>
-                        <groupId>com.sun</groupId>
-                        <artifactId>tools</artifactId>
-                        <version>1.5.0</version>
-                        <scope>system</scope>
-                        <systemPath>${java.home}/../lib/tools.jar</systemPath>
-                    </dependency>
-                </dependencies>
                 <executions>
                     <execution>
                         <id>compile-java-api</id>
@@ -159,6 +150,31 @@
             </plugin>
         </plugins>
     </build>
-    
+
+    <profiles>
+        <profile>
+            <id>legacy-jdk-tools</id>
+            <activation>
+                <jdk>(,9)</jdk>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-antrun-plugin</artifactId>
+                        <dependencies>
+                            <dependency>
+                                <groupId>com.sun</groupId>
+                                <artifactId>tools</artifactId>
+                                <version>1.5.0</version>
+                                <scope>system</scope>
+                                <systemPath>${java.home}/../lib/tools.jar</systemPath>
+                            </dependency>
+                        </dependencies>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 
 </project>