[
https://issues.apache.org/jira/browse/KAFKA-7025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17390988#comment-17390988
]
Nikolai Lubiagov commented on KAFKA-7025:
-----------------------------------------
I comment this code and now it can compiled for Android API 23 version.
```
diff --git
a/clients/src/main/java/org/apache/kafka/common/utils/ByteBufferUnmapper.java
b/clients/src/main/java/org/apache/kafka/common/utils/ByteBufferUnmapper.java
index 4777f7bf96..68452d1691 100644
---
a/clients/src/main/java/org/apache/kafka/common/utils/ByteBufferUnmapper.java
+++
b/clients/src/main/java/org/apache/kafka/common/utils/ByteBufferUnmapper.java
@@ -77,11 +77,11 @@ public final class ByteBufferUnmapper {
if (UNMAP == null)
throw UNMAP_NOT_SUPPORTED_EXCEPTION;
- try {
- UNMAP.invokeExact(buffer);
- } catch (Throwable throwable) {
- throw new IOException("Unable to unmap the mapped buffer: " +
resourceDescription, throwable);
- }
+// try {
+// UNMAP.invokeExact(buffer);
+// } catch (Throwable throwable) {
+// throw new IOException("Unable to unmap the mapped buffer: " +
resourceDescription, throwable);
+// }
}
private static MethodHandle lookupUnmapMethodHandle() {
diff --git a/clients/src/main/java/org/apache/kafka/common/utils/Crc32C.java
b/clients/src/main/java/org/apache/kafka/common/utils/Crc32C.java
index dfe22e8b35..13a76e26f6 100644
--- a/clients/src/main/java/org/apache/kafka/common/utils/Crc32C.java
+++ b/clients/src/main/java/org/apache/kafka/common/utils/Crc32C.java
@@ -96,12 +96,13 @@ public final class Crc32C {
@Override
public Checksum create() {
- try {
+ return null;
+/* try {
return (Checksum) CONSTRUCTOR.invoke();
} catch (Throwable throwable) {
// Should never happen
throw new RuntimeException(throwable);
- }
+ }*/
}
}
```
> Android client support
> ----------------------
>
> Key: KAFKA-7025
> URL: https://issues.apache.org/jira/browse/KAFKA-7025
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 1.0.1
> Reporter: Martin Vysny
> Priority: Major
> Attachments: image-2020-07-21-06-42-03-140.png
>
>
> Adding kafka-clients:1.0.0 (also 1.0.1 and 1.1.0) to an Android project would
> make the compilation fail: com.android.tools.r8.ApiLevelException:
> MethodHandle.invoke and MethodHandle.invokeExact are only supported starting
> with Android O (--min-api 26)
>
> Would it be possible to make the kafka-clients backward compatible with
> reasonable Android API (say, 4.4.x) please?
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