Remove jdk_switcher

Author: ejba

.travis.yml

@@ -7,8 +7,6 @@ install:
   - pip install -r requirements-dev.txt
   - pip install .
 script:
-  - source ./jdk_switcher.sh
-  - jdk_switcher use oraclejdk10
   - mvn --version
   - java --version
   - coverage erase

integration/resources/badexample/pom.xml

@@ -14,6 +14,7 @@
   <url>http://www.example.com</url>
 
   <properties>
+    <java.version>11</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.release>11</maven.compiler.release>
   </properties>

integration/resources/badexample_with_bad_test/pom.xml

@@ -14,6 +14,7 @@
   <url>http://www.example.com</url>
 
   <properties>
+    <java.version>11</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.release>11</maven.compiler.release>
   </properties>

integration/resources/goodexample/pom.xml

@@ -14,6 +14,7 @@
   <url>http://www.example.com</url>
 
   <properties>
+    <java.version>11</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.release>11</maven.compiler.release>
   </properties>

integration/resources/goodexample_with_mvnw/pom.xml

@@ -14,9 +14,9 @@
   <url>http://www.example.com</url>
 
   <properties>
+    <java.version>11</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.release>11</maven.compiler.release>
   </properties>
 
   <dependencies>
@@ -73,7 +73,7 @@
       <plugin>
         <groupId>com.diffplug.spotless</groupId>
         <artifactId>spotless-maven-plugin</artifactId>
-        <version>2.7.0</version>
+        <version>2.5.0</version>
         <configuration>
           <!-- optional: limit format enforcement to just the files changed by this feature branch -->
           <formats>