problem: nullpointer stacktrace if json is just "null"

2021-02-16 17:15:00 -05:00
parent 73d94879cd
commit d60154d893
2 changed files with 15 additions and 1 deletions
--- a/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/CacheRequested.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/upstream/ethereum/CacheRequested.kt
@@ -46,7 +46,8 @@ class CacheRequested(
        if (params.size != 1) {
            return
        }
-        val parsed = Global.objectMapper.readValue(json, TransactionReceiptJson::class.java)
+        // note: json could be a `null` value
+        val parsed = Global.objectMapper.readValue(json, TransactionReceiptJson::class.java) ?: return
        val value = DefaultContainer<TransactionReceiptJson>(
                TxId.from(parsed.transactionHash),
                BlockId.from(parsed.blockHash),