From 793a52c57a521f8f2935229049e809154b398046 Mon Sep 17 00:00:00 2001
From: Michele Sollecito <michele.sollecito@gmail.com>
Date: Mon, 3 Sep 2018 14:27:24 +0100
Subject: [PATCH] [CORDA-1542]: Exception error codes aren't stable (fixed).
 (#3887)

---
 .../net/corda/node/internal/NodeStartup.kt    | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/node/src/main/kotlin/net/corda/node/internal/NodeStartup.kt b/node/src/main/kotlin/net/corda/node/internal/NodeStartup.kt
index c73dfea87e..dfa8d113a9 100644
--- a/node/src/main/kotlin/net/corda/node/internal/NodeStartup.kt
+++ b/node/src/main/kotlin/net/corda/node/internal/NodeStartup.kt
@@ -147,8 +147,8 @@ open class NodeStartup(val args: Array<String>) {
 
         val cause = this.cause
         return when {
-            cause != null && !visited.contains(cause) -> Objects.hash(this::class.java.name, stackTrace, cause.staticLocationBasedHash(visited +  cause))
-            else -> Objects.hash(this::class.java.name, stackTrace)
+            cause != null && !visited.contains(cause) -> Objects.hash(this::class.java.name, stackTrace.customHashCode(), cause.staticLocationBasedHash(visited +  cause))
+            else -> Objects.hash(this::class.java.name, stackTrace.customHashCode())
         }
     }
 
@@ -177,6 +177,19 @@ open class NodeStartup(val args: Array<String>) {
         }
     }
 
+    private fun Array<StackTraceElement?>?.customHashCode(): Int {
+
+        if (this == null) {
+            return 0
+        }
+        return Arrays.hashCode(map { it?.customHashCode() ?: 0 }.toIntArray())
+    }
+
+    private fun StackTraceElement.customHashCode(): Int {
+
+        return Objects.hash(StackTraceElement::class.java.name, methodName, lineNumber)
+    }
+
     private fun configFileNotFoundMessage(configFile: Path): String {
         return """
                 Unable to load the node config file from '$configFile'.
@@ -581,3 +594,5 @@ open class NodeStartup(val args: Array<String>) {
         }
     }
 }
+
+