AWS SNS Publish message method is not working inside a UNIX server-CodePudding

Below is the program that I am using to publish a message to SNS. There is no issue when I execute this program(simple Java or Spring boot) in my local system. The message is published on the topic.

But, the actual program runs inside a thread in a spring boot project. The thread runs every 1 minute. Whenever the thread runs, the below program has to publish the message. This spring boot project deployed inside a standalone Unix server. From the server, it is not publishing messages. There is no exception. The logs are showing a successful handshake to the Amazon network.

I tried AmazonSNS and SnsClient classes as well.

AmazonSNSAsync snsClient1 = AmazonSNSAsyncClient.asyncBuilder()
          .withCredentials(new AWSStaticCredentialsProvider(
              new BasicAWSCredentials("access-key",
                  "secret-key")))
          .withRegion("us-east-1")
          .build();
      log.info("STATUS: snsClient1 formed");
      PublishRequest publishReq =
          new PublishRequest()
              .withTopicArn("sns_topic-arn")
              .withMessage("mes: " message);
      log.info("STATUS: publishReq formed");
      snsClient1.publishAsync(publishReq);

I tried the below things already.

moved the program out of the thread
tried with a new topic
used the latest dependency of SNS

However, when I published a message from the Unix box using AWS CLI, the message was published successfully.

Did anyone face a similar issue? If not, you can share any alternative way to hit the SNS from a Java program if you know.

CodePudding user response：

The issue is partially fixed. AWS SDK was throwing an error, not an exception. That was the cause of the code block. Once, I catch with the "Throwable" keyword, the program is not stopping.

Later, I used the bom concepts to avoid the transitive dependency version conflicts and converted all the AWS SDK 1 code into SDK 2 code. Now, the message is posted on the SNS topic. But, the weird thing is that SDK2 also throws a similar error. I am trying to fix it.

Reference:

https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html https://github.com/awsdocs/aws-doc-sdk-examples/blob/main/javav2/example_code/sns/src/main/java/com/example/sns/PublishTopic.java

Meanwhile, you can track the issue on the below page as well.

https://github.com/aws/aws-sdk-java/discussions/2867