GitHub user nroduit opened a pull request:
https://github.com/apache/felix/pull/114
Fix to avoid incompatibility if compile with jdk9
Java 9 introduces overridden methods with covariant return types for the
following methods in java.nio.ByteBuffer:
- positionâ(int newPosition)
- limitâ(int newLimit)
- flipâ()
- clearâ()
- markâ()
- resetâ()
- rewindâ()
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 issue appears even with
source and target 8 or lower in compilation parameters).
The solution is to cast ByteBuffer instances to Buffer before calling the
method.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nroduit/felix trunk
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/felix/pull/114.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #114
----
commit 2ef06ec9b432fd777ffc0c5a73b5f0f6cc190878
Author: Nicolas Roduit <[email protected]>
Date: 2017-07-31T16:38:59Z
Compatibility with covariant return type on JDK 9's ByteBuffer
commit 9c64b1433185160cd18d423d925655eb3f7fa539
Author: Nicolas Roduit <[email protected]>
Date: 2017-07-31T16:44:27Z
Merge remote-tracking branch 'origin/trunk' into trunk
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