Bazel's build now requires a minimum of JDK 11, but it's still configured to use Java 8 language features.
We should enable Java 11 language features for Bazel.
e.g.
git diff
diff --git a/src/main/java/com/google/devtools/build/lib/vfs/DigestHashFunction.java b/src/main/java/com/google/devtools/build/lib/vfs/DigestHashFunction.java
index 8d5fd508f8..e760bb31d0 100644
--- a/src/main/java/com/google/devtools/build/lib/vfs/DigestHashFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/vfs/DigestHashFunction.java
@@ -187,7 +187,7 @@ public class DigestHashFunction {
private static boolean supportsClone(MessageDigest toCheck) {
try {
- toCheck.clone();
+ var unused = toCheck.clone();
return true;
} catch (CloneNotSupportedException e) {
return false;$ bazel build //src:bazel
...
src/main/java/com/google/devtools/build/lib/vfs/DigestHashFunction.java:190: warning: as of release 10, 'var' is a restricted local variable type and cannot be used for type declarations or as the element type of an array
var unused = toCheck.clone();
^
Bazel's build now requires a minimum of JDK 11, but it's still configured to use Java 8 language features.
We should enable Java 11 language features for Bazel.
e.g.