Sylwester Lachiewicz created MRESOLVER-85:
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Summary: Avoid ByteBuffer incompatibility when compiling with JDK9+
Key: MRESOLVER-85
URL: https://issues.apache.org/jira/browse/MRESOLVER-85
Project: Maven Resolver
Issue Type: Improvement
Affects Versions: 1.3.3, 1.3.2
Reporter: Sylwester Lachiewicz
Restore possibility to create a release with Java9+
The explanation for this is given in
[apache/felix#114|https://github.com/apache/felix/pull/114] :
Java 9 introduces overridden methods with covariant return types for the
following methods in java.nio.ByteBuffer:
position (int newPosition)
limit (int newLimit)
flip ()
clear ()
mark ()
reset ()
rewind ()
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.
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