James Duong created ARROW-15913:
-----------------------------------

             Summary: [IPC][Java] JDK 8 incompatibility with ByteBuffer.clear()
                 Key: ARROW-15913
                 URL: https://issues.apache.org/jira/browse/ARROW-15913
             Project: Apache Arrow
          Issue Type: Bug
          Components: Java
            Reporter: James Duong


There is an incompatibility with JDK 8 when Arrow is compiled with JDK 9 or 
higher as described here:

[https://jira.mongodb.org/browse/JAVA-2559]

 

"Java 9 introduces overridden methods with covariant return types for the 
following methods in java.nio.ByteBuffer that are used by the driver:
 * position
 * limit
 * flip
 * clear

In Java 9 they all now return ByteBuffer, whereas the methods they override 
return Buffer,
resulting in exceptions like this when executing on Java 8 and lower:

java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer

This is because the generated byte code includes the static return type of the 
method, which is not found on Java 8 and lower because the overloaded methods 
with covariant return types don't exist.

The solution is to cast ByteBuffer instances to Buffer before calling the 
method."



--
This message was sent by Atlassian Jira
(v8.20.1#820001)

Reply via email to