[ci] Make ASN0510E retriable

When attempting to start ASNCAP, the command can be ignored by Db2 and when this
happens an ASN0510E status will be returned. In this case, the command should
be re-executed.

src/test/java/io/debezium/connector/db2/util/TestHelper.java

@@ -125,6 +125,7 @@ public static void enableDbCdc(Db2Connection connection) throws SQLException {
         Statement stmt = connection.connection().createStatement();
         boolean isNotrunning = true;
         int count = 0;
+        int retries = 0;
         while (isNotrunning) {
             ResultSet rs = stmt.executeQuery(STATUS_DB_CDC);
             while (rs.next()) {
@@ -134,14 +135,25 @@ public static void enableDbCdc(Db2Connection connection) throws SQLException {
                 if (test.contains("is doing work")) {
                     isNotrunning = false;
                 }
+                else if (test.contains("ASN0510E")) {
+                    // Per https://www.ibm.com/docs/en/db2/11.5?topic=messages-asn0000-asn0999#asn0510e
+                    // The command was not executed and should be retried in this use case.
+                    LOGGER.debug("ASN0510E detected, command was not processed and requires retry.");
+                    connection.execute(ENABLE_DB_CDC);
+                    retries++;
+                    count = 0;
+                }
                 else {
                     try {
                         Thread.sleep(1000);
                     }
                     catch (InterruptedException e) {
                     }
                 }
-                if (count++ > 60) {
+                if (retries > 5) {
+                    throw new SQLException("Maximum ASNCAP server start requests exceeded");
+                }
+                else if (count++ > 60) {
                     throw new SQLException("ASNCAP server did not start.");
                 }
             }