diff --git a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/common/TestExecutor.java b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/common/TestExecutor.java
index 5d71a26..e4063c0 100644
--- a/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/common/TestExecutor.java
+++ b/asterixdb/asterix-app/src/test/java/org/apache/asterix/test/common/TestExecutor.java
@@ -68,6 +68,7 @@
 import java.util.function.Predicate;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 import java.util.stream.IntStream;
 import java.util.stream.Stream;
 
@@ -1576,13 +1577,22 @@
     protected static boolean isExpected(Exception e, CompilationUnit cUnit) {
         final List<String> expErrors = cUnit.getExpectedError();
         for (String exp : expErrors) {
-            if (e.toString().contains(exp)) {
+            if (e.toString().contains(exp) || containsPattern(e.toString(), exp)) {
                 return true;
             }
         }
         return false;
     }
 
+    private static boolean containsPattern(String exception, String maybePattern) {
+        try {
+            return Pattern.compile(maybePattern).matcher(exception).find();
+        } catch (PatternSyntaxException pse) {
+            // ignore, this isn't always a legal pattern
+            return false;
+        }
+    }
+
     public int getTimeoutSecs(String statement) {
         final Matcher timeoutMatcher = POLL_TIMEOUT_PATTERN.matcher(statement);
         if (timeoutMatcher.find()) {
@@ -1903,7 +1913,7 @@
             // Get the expected exception
             expectedError = expectedErrors.get(numOfErrors - 1);
             String actualError = e.toString();
-            if (!actualError.contains(expectedError)) {
+            if (!actualError.contains(expectedError) && !containsPattern(actualError, expectedError)) {
                 LOGGER.error("Expected to find the following in error text: +++++{}+++++", expectedError);
                 return true;
             }
diff --git a/hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/exceptions/AlgebricksException.java b/hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/exceptions/AlgebricksException.java
index 46e80be..ac22b60 100644
--- a/hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/exceptions/AlgebricksException.java
+++ b/hyracks-fullstack/algebricks/algebricks-common/src/main/java/org/apache/hyracks/algebricks/common/exceptions/AlgebricksException.java
@@ -135,7 +135,7 @@
         return errorCode;
     }
 
-    public Object[] getParams() {
+    public Serializable[] getParams() {
         return params;
     }