Unrecognized SSL message, plaintext connection? Exception

user_416123 0
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I have a java complied package to speak with the https server on net. Running the compilation gives the following exception:

javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at com.sun.net.ssl.internal.ssl.InputRecord.handleUnknownRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.InputRecord.read(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)

I think this is due to the connection established with the client machine is not secure. Is there any way to configure the local machine or ports in order to connect to the remote https server?

https java
19 Answers

If you are running local using spring i'd suggest use:

@Bean
public AmazonDynamoDB amazonDynamoDB() throws IOException {
    return AmazonDynamoDBClientBuilder.standard()
            .withCredentials(
                    new AWSStaticCredentialsProvider(
                            new BasicAWSCredentials("fake", "credencial")
                    )
            )
            .withClientConfiguration(new ClientConfigurationFactory().getConfig().withProtocol(Protocol.HTTP))
            .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration("localhost:8443", "central"))
            .build();
}

It works for me using unit test.

Hope it's help!

user_4384050

I've got similar error using camel-mail component to send e-mails by gmail smtp.

The solution was changing from TLS port (587) to SSL port (465) as below:

<route id="sendMail">
  <from uri="jason:toEmail"/>
  <convertBodyTo type="java.lang.String"/>
  <setHeader headerName="Subject"><constant>Something</constant></setHeader>
  <to uri="smtps://smtp.gmail.com:465?username=myemail@gmail.com&amp;password=mypw&amp;to=someemail@gmail.com&amp;debugMode=true&amp;mail.smtp.starttls.enable=true"/>
</route>
user_54341800

In case you use Jetty version 9 or earlier you need to add it to jetty by

RUN java -jar ${JETTY_HOME}/start.jar --add-to-startd=https

and according to this Jetty: How to use SSL in Jetty client side

from Jetty version 10 it should work out of the box

user_14439280
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