fix null pointer exception

NRHelmi · NRHelmi · commit 177341e9686e · 2022-04-08T18:39:15.000+01:00
diff --git a/rai-sdk/src/main/java/com/relationalai/Client.java b/rai-sdk/src/main/java/com/relationalai/Client.java
@@ -715,7 +715,7 @@ public TransactionResult execute(
 
     public HashMap<String, Any> executeAsyncWait(
             String database, String engine, String source, boolean readonly) throws HttpError, IOException, InterruptedException {
-        return executeAsyncWait(database, engine, source, readonly, null);
+        return executeAsyncWait(database, engine, source, readonly, new HashMap<>());
     }
 
     public HashMap<String, Any> executeAsyncWait(

Original file line number	Diff line number	Diff line change
`@@ -715,7 +715,7 @@ public TransactionResult execute(`
`715`	`715`
`716`	`716`	`public HashMap<String, Any> executeAsyncWait(`
`717`	`717`	`String database, String engine, String source, boolean readonly) throws HttpError, IOException, InterruptedException {`
`718`		`- return executeAsyncWait(database, engine, source, readonly, null);`
	`718`	`+ return executeAsyncWait(database, engine, source, readonly, new HashMap<>());`
`719`	`719`	`}`
`720`	`720`
`721`	`721`	`public HashMap<String, Any> executeAsyncWait(`