Drop support for Java 8. (#4279)

* Drop support for Java 8.

I have attempted to update all the relevant configuration parameters but might have
missed some, let's see!

Closes #4278.

* Fix typo in pom.xml

.github/workflows/pull_request.yml

@@ -11,7 +11,7 @@ jobs:
   server_tests:
     strategy:
       matrix:
-        java: [ 8, 14 ]
+        java: [ 11, 14 ]
 
     runs-on: ubuntu-latest
 
@@ -118,11 +118,11 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-
 
-      - name: Set up Java 8
+      - name: Set up Java 11
         uses: actions/setup-java@v2
         with:
           distribution: 'adopt'
-          java-version: 8
+          java-version: 11
 
       - name: Build OpenRefine
         run: ./refine build

.github/workflows/snapshot_release.yml

@@ -44,11 +44,11 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-
 
-      - name: Set up Java 8
+      - name: Set up Java 11
         uses: actions/setup-java@v2
         with:
           distribution: 'adopt'
-          java-version: 8
+          java-version: 11
 
       - name: Build OpenRefine
         run: ./refine build
@@ -132,11 +132,11 @@ jobs:
         restore-keys: |
             ${{ runner.os }}-maven-
 
-    - name: Set up Java 8
+    - name: Set up Java 11
       uses: actions/setup-java@v2
       with:
         distribution: 'adopt'
-        java-version: 8
+        java-version: 11
 
     - name: Install genisoimage and jq
       run: sudo apt-get install genisoimage jq

benchmark/pom.xml

@@ -49,7 +49,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <jmh.version>1.33</jmh.version>
-    <javac.target>1.8</javac.target>
+    <javac.target>${java.minversion}</javac.target>
     <uberjar.name>openrefine-benchmarks</uberjar.name>
   </properties>
 

extensions/database/pom.xml

@@ -47,8 +47,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/gdata/pom.xml

@@ -47,8 +47,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/jython/pom.xml

@@ -49,8 +49,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/pc-axis/pom.xml

@@ -47,8 +47,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/phonetic/pom.xml

@@ -49,8 +49,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/sample/pom.xml

@@ -48,8 +48,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

extensions/wikidata/pom.xml

@@ -57,8 +57,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

packaging/pom.xml

@@ -213,7 +213,8 @@
               </classPath>
               <jre>
                 <path>${windows.package.jre.path}</path>
-                <minVersion>1.8.0</minVersion>
+                <minVersion>${java.minversion}</minVersion>
+                <maxVersion>${java.maxversion}</maxVersion>
                 <bundledJreAsFallback>true</bundledJreAsFallback>
                 <initialHeapSize>512</initialHeapSize>
                 <maxHeapSize>2048</maxHeapSize>

pom.xml

@@ -54,6 +54,8 @@
 
 
   <properties>
+    <java.minversion>11</java.minversion>
+    <java.maxversion>15</java.maxversion>
     <jee.path>/</jee.path>
     <jee.port>3333</jee.port>
     <refine.data>/tmp/refine</refine.data>
@@ -99,8 +101,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>

server/pom.xml

@@ -57,8 +57,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <source>1.8</source>
+          <source>${java.minversion}</source>
-          <target>1.8</target>
+          <target>${java.minversion}</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>false</showDeprecation>
         </configuration>