Use Java 17.

Author: smillst

README.md

@@ -17,8 +17,8 @@ plugins {
 If you are upgrading from plugin version 0.x to 1.x, see the [migration
 guide](#migrating-from-0x-to-1x).
 
-The plugin supports Gradle versions 7.3 and above, which requires Java 11 and
-above.  Although you must compile your project using at least Java 11, the
+The plugin supports Gradle versions 7.3 and above, which requires Java 17 and
+above.  Although you must compile your project using at least Java 17, the
 compiled classfiles can be compatible with, and can run on, any version of Java.
 
 ## Configuration
@@ -41,14 +41,14 @@ Checker Framework to use.
 
   ```toml
   [libraries]
-  checker = "org.checkerframework:checker:3.53.0"
+  checker = "org.checkerframework:checker:3.53.1"
   ```
 
 * Alternately, you can edit just one file.  Add this to `build.gradle`:
 
   ```groovy
   checkerFramework {
-    version = "3.53.0"
+    version = "3.53.1"
   }
   ```
 

build.gradle.kts

@@ -8,7 +8,7 @@ plugins {
 
 group = "org.checkerframework"
 
-version = "1.0.0"
+version = "1.0.1"
 
 repositories { mavenCentral() }
 
@@ -37,6 +37,8 @@ gradlePlugin {
   }
 }
 
+kotlin { jvmToolchain(17) }
+
 testing {
   suites {
     withType<JvmTestSuite>().configureEach {