Fix a bug in MemSegBuffer

2021-05-28 13:54:16 +02:00 · 2021-05-28 13:54:16 +02:00 · 0aa2853cf3
parent a6b81c89ef
commit 0aa2853cf3
1 changed files with 3 additions and 0 deletions
--- a/buffer-memseg/src/main/java/io/netty/buffer/api/memseg/MemSegBuffer.java
+++ b/buffer-memseg/src/main/java/io/netty/buffer/api/memseg/MemSegBuffer.java
@ -299,6 +299,9 @@ class MemSegBuffer extends ResourceSupport<Buffer, MemSegBuffer> implements Buff
    @Override
    public Buffer copy(int offset, int length) {
        checkGet(offset, length);
+        if (length < 0) {
+            throw new IllegalArgumentException("Length cannot be negative: " + length + '.');
+        }

        if (length == 0) {
            // Special case zero-length segments, since allocators don't support allocating empty buffers.