修改travis-ci

.travis.yml

@@ -2,4 +2,8 @@ language: java
 jdk: oraclejdk8
 before_install:
   - chmod +x mvnw
-script: "./mvnw install -B -V"
\ No newline at end of file
+script:
+  - "./mvnw install -DskipTests=true -Dmaven.javadoc.skip=true -B -V"
+  - "./mvnw pmd:check -DskipTests=true -Dmaven.javadoc.skip=true -B -V"
+  - "./mvnw install -B -V"
+

pom.xml

@@ -113,24 +113,6 @@
                         <ruleset>rulesets/java/ali-set.xml</ruleset>
                     </rulesets>
                 </configuration>
-                <executions>
-                    <!-- 绑定pmd:check到verify生命周期 -->
-                    <execution>
-                        <id>pmd-check-verify</id>
-                        <phase>validate</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                    <!-- 绑定pmd:pmd到site生命周期 -->
-                    <execution>
-                        <id>pmd-pmd-site</id>
-                        <phase>site</phase>
-                        <goals>
-                            <goal>pmd</goal>
-                        </goals>
-                    </execution>
-                </executions>
                 <dependencies>
                     <dependency>
                         <groupId>com.alibaba.p3c</groupId>