Add NotNull quorum for block methods (#265)

src/main/kotlin/io/emeraldpay/dshackle/upstream/calls/DefaultEthereumMethods.kt

@@ -124,20 +124,20 @@ class DefaultEthereumMethods(
 
     private val possibleNotIndexedMethods = listOf(
         "eth_getTransactionByHash",
-        "eth_getTransactionReceipt"
+        "eth_getTransactionReceipt",
-    )
-
-    private val firstValueMethods = listOf(
-        "eth_call",
         "eth_getBlockTransactionCountByHash",
-        "eth_getUncleCountByBlockHash",
         "eth_getBlockByHash",
         "eth_getBlockByNumber",
         "eth_getTransactionByBlockHashAndIndex",
         "eth_getTransactionByBlockNumberAndIndex",
+        "eth_getUncleByBlockHashAndIndex",
+        "eth_getUncleCountByBlockHash"
+    )
+
+    private val firstValueMethods = listOf(
+        "eth_call",
         "eth_getStorageAt",
         "eth_getCode",
-        "eth_getUncleByBlockHashAndIndex",
         "eth_getLogs",
         "eth_maxPriorityFeePerGas",
         "eth_getProof"

src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/EthereumLocalReader.kt

@@ -60,6 +60,7 @@ class EthereumLocalReader(
             return Mono.empty()
         }
         val common = commonRequests(key)
+            ?.switchIfEmpty { Mono.just(nullValue to null) }
         if (common != null) {
             return common.map { JsonRpcResponse(it.first, null, it.second) }
         }
@@ -88,7 +89,6 @@ class EthereumLocalReader(
                 reader.txByHashAsCont()
                     .read(hash)
                     .map { it.data.json!! to it.upstreamId }
-                    .switchIfEmpty { Mono.just(nullValue to null) }
             }
             method == "eth_getBlockByHash" -> {
                 if (params.size != 2) {
@@ -123,7 +123,6 @@ class EthereumLocalReader(
                 reader.receipts()
                     .read(hash)
                     .map { it.data to it.upstreamId }
-                    .switchIfEmpty { Mono.just(nullValue to null) }
             }
             else -> null
         }