public void validateFill() {
    assert FreeListManager.TINY_MULTIPLE == 8;

    long startAddress = getAddress() + MIN_CHUNK_SIZE;
    int size = getSize() - MIN_CHUNK_SIZE;

    for (int i = 0; i < size; i += FreeListManager.TINY_MULTIPLE) {
      if (AddressableMemoryManager.readLong(startAddress + i) != FILL_PATTERN) {
        throw new IllegalStateException(
            "Fill pattern violated for chunk " + getAddress() + " with size " + getSize());
      }
    }
  }
Validates that the fill pattern for this chunk has not been disturbed. This method assumes the
TINY_MULTIPLE is 8 bytes.

@throws IllegalStateException when the pattern has been violated.
geode-core/src/main/java/org/apache/geode/internal/offheap/OffHeapStoredObject.java