Test against Java 17, bump minimum versions

Not actually testing against Java 7, so don't mention that anymore.

Author: robinst

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [1.8, 11]
+        java: [1.8, 11, 17]
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
@@ -31,7 +31,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
 
       - name: Build with coverage
         run: mvn -B -Pcoverage clean test jacoco:report

README.md

@@ -32,8 +32,8 @@ Thanks to [Rinku](https://github.com/vmg/rinku) for the inspiration.
 Usage
 -----
 
-This library requires at least Java 7 (tested up to Java 11). It works on Android (minimum API level 15).
-It has no external dependencies.
+This library is supported on Java 8 or later. It works on Android
+(minimum API level 19). It has no external dependencies.
 
 Maven coordinates
 (see
@@ -208,6 +208,6 @@ See CONTRIBUTING.md file.
 License
 -------
 
-Copyright (c) 2015-2018 Robin Stocker and others, see Git history
+Copyright (c) 2015-2022 Robin Stocker and others, see Git history
 
 MIT licensed, see LICENSE file.