I am testing java code for filtering cloudwatch log group with following query:

Can someone help me with syntax because I get error InvalidParameterException: Invalid character(s) in term ‘@’?

this is query from aws:

fields @timestamp, @message, @logStream, @log 
| sort @timestamp desc 
| filter @message like "A_B" 
| parse @message ""userInfo":"*"" as userInfo 
| stats count(*) by userInfo

how to write this query in java?

ClientConfiguration clientConfig = new ClientConfiguration();
AWSLogsClientBuilder builder = AWSLogsClientBuilder.standard();
AWSLogs logsClient = builder.withCredentials( new AWSStaticCredentialsProvider( new ProfileCredentialsProvider().getCredentials() ) )
.withRegion( Regions.US_EAST_1 )
.withClientConfiguration( clientConfig ).build();  

FilterLogEventsRequest request = new FilterLogEventsRequest()
.withLogGroupName(logGroupName)
.withLogStreamNames(logStreamName)
.withFilterPattern(queryString)
.withStartTime(firstDateTimestamp.toEpochMilli())
.withEndTime(lastDateTimestamp.toEpochMilli());

FilterLogEventsResult response = logsClient.filterLogEvents(request);

List<FilteredLogEvent> logEvents = response.getEvents();