mirror of https://github.com/grpc/grpc-java.git
c30505df04
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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