Downgrade to groovy 1.7 due to incompatible class change from 1.6.9 -…

…> 1.8.0

pom.xml

@@ -96,6 +96,37 @@
             <plugin>
                 <groupId>org.codehaus.gmaven</groupId>
                 <artifactId>gmaven-plugin</artifactId>
+                <version>${gmaven.version}</version>
+                <configuration>
+                    <providerSelection>1.7</providerSelection>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.codehaus.gmaven.runtime</groupId>
+                        <artifactId>gmaven-runtime-1.7</artifactId>
+                        <version>${gmaven.version}</version>
+                        <exclusions>
+                            <exclusion>
+                                <groupId>org.codehaus.groovy</groupId>
+                                <artifactId>groovy-all</artifactId>
+                            </exclusion>
+                        </exclusions>
+                    </dependency>
+                    <dependency>
+                        <groupId>org.codehaus.groovy</groupId>
+                        <artifactId>groovy-all</artifactId>
+                        <version>${groovy.version}</version>
+                    </dependency>
+                </dependencies>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>generateStubs</goal>
+                            <goal>compile</goal>
+                            <goal>testCompile</goal>
+                        </goals>
+                    </execution>
+                </executions>
             </plugin>
 		</plugins>
 	</build>
@@ -114,10 +145,12 @@
 		<dependency>
 			<groupId>org.codehaus.groovy</groupId>
 			<artifactId>groovy-all</artifactId>
+            <version>${groovy.version}</version>
 		</dependency>
         <dependency>
             <groupId>org.spockframework</groupId>
             <artifactId>spock-core</artifactId>
+            <version>0.5-groovy-1.7</version>
             <scope>test</scope>
         </dependency>
 	</dependencies>
@@ -161,4 +194,9 @@
 	        </plugin>
 		</plugins>
 	</reporting>
+
+    <properties>
+        <groovy.version>1.7.10</groovy.version>
+        <gmaven.version>1.3</gmaven.version>
+    </properties>
 </project>