Further improve the inflate overflow checks in the Java compressor native

This brings the Java compressor in line with our libdeflate one.

native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java

@@ -34,24 +34,30 @@ public class JavaVelocityCompressor implements VelocityCompressor {
     checkArgument(source.nioBufferCount() == 1, "source has multiple backing buffers");
     checkArgument(destination.nioBufferCount() == 1, "destination has multiple backing buffers");
 
-    int origIdx = source.readerIndex();
+    final int origIdx = source.readerIndex();
     inflater.setInput(source.nioBuffer());
 
-    while (!inflater.finished() && inflater.getBytesRead() < source.readableBytes()) {
+    try {
+      while (!inflater.finished() && inflater.getBytesWritten() < uncompressedSize) {
         if (!destination.isWritable()) {
-        ensureMaxSize(destination, uncompressedSize);
           destination.ensureWritable(ZLIB_BUFFER_SIZE);
         }
 
         ByteBuffer destNioBuf = destination.nioBuffer(destination.writerIndex(),
             destination.writableBytes());
         int produced = inflater.inflate(destNioBuf);
-      source.readerIndex(origIdx + inflater.getTotalIn());
         destination.writerIndex(destination.writerIndex() + produced);
       }
 
+      if (inflater.getBytesWritten() != uncompressedSize) {
+        throw new DataFormatException("Did not write the exact expected number of"
+            + " uncompressed bytes, expected " + uncompressedSize);
+      }
+      source.readerIndex(origIdx + inflater.getTotalIn());
+    } finally {
       inflater.reset();
     }
+  }
 
   @Override
   public void deflate(ByteBuf source, ByteBuf destination) throws DataFormatException {