Ensure uncompressed ByteBuf is released when an exception happens during decoding.
Motivation: We need to ensure the uncompressed ByteBuf is released if an exception happens while calling decode(...). If we miss to do so we leak buffers. Modifications: Correctly release buffer on exception. Result: No more memory leak.
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@ -166,7 +166,8 @@ public class SnappyFrameDecoder extends ByteToMessageDecoder {
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in.skipBytes(4);
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int checksum = in.readIntLE();
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ByteBuf uncompressed = ctx.alloc().buffer(0);
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ByteBuf uncompressed = ctx.alloc().buffer();
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try {
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if (validateChecksums) {
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int oldWriterIndex = in.writerIndex();
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try {
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@ -180,6 +181,12 @@ public class SnappyFrameDecoder extends ByteToMessageDecoder {
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snappy.decode(in.readSlice(chunkLength - 4), uncompressed);
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}
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out.add(uncompressed);
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uncompressed = null;
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} finally {
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if (uncompressed != null) {
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uncompressed.release();
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}
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}
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snappy.reset();
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break;
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}
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