franz1981 commented on code in PR #12163:
URL: https://github.com/apache/kafka/pull/12163#discussion_r900173675
##########
clients/src/main/java/org/apache/kafka/common/utils/Checksums.java:
##########
@@ -30,21 +36,74 @@
*/
public final class Checksums {
+ private static final Logger LOGGER =
LoggerFactory.getLogger(Checksums.class);
+ private static final MethodHandle BYTE_BUFFER_UPDATE;
+
+ static {
+ MethodHandle byteBufferUpdate = null;
+ if (Java.IS_JAVA9_COMPATIBLE) {
+ try {
+ byteBufferUpdate =
MethodHandles.publicLookup().findVirtual(Checksum.class, "update",
MethodType.methodType(void.class, ByteBuffer.class));
+ } catch (Throwable t) {
+ LOGGER.warn("Cannot uses
java.util.zip.Checksum::update(ByteBuffer): direct ByteBuffers checksum won't
use optimized platform support", t);
Review Comment:
FYI now on PTO, will be able to perform any code change when back on my desk
by the end of month
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