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Which is the java version supported by dbx sdk 7.0.0

Hi,

I would like to upgrade dropbox-core-sdk from version 4.0.1 to 7.0.0. Currently, I'm using Java JDK 8. According to the Dropbox documentation, this SDK appears to be compatible with JDK 8. However, version 7.0.0 has a dependency on jakarta.servlet-api 6.0.0, which is based on JDK 11.

I'm a bit confused: can I update the code without upgrading my JDK, or is it necessary to switch to Java 11?

Alternatively, is it possible to compile the code using JDK 11 but still run it on JDK 8?

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DB-Des

@luigiafassina

Regarding your implementation, you can continue testing your current flow with your custom 'SessionStore' setup. If there are any compatibility issues, those would typically appear during runtime or while handling requests through your servlet environment.

The certificate update taking effect in January isn’t related to the behavior of your integration, so it shouldn’t impact your current testing.

All comments

DB-Des

Hi @luigiafassina

Because version 7.0.0 has a dependency on jakarta.servlet-api 6.0.0 (which requires Java 11 or higher), you will need to use Java 11 (or higher) to compile and run your project with SDK version 7.0.0.

It is not possible to compile the SDK with JDK 11 and then run it on JDK 8, as Java does not support running code that depends on APIs from a newer JDK on an older JDK.

luigiafassina

Thanks for your answer.

One more question to solve my doubts..

This is the only place in my code where I need jakarta.servlet.

private DbxSessionStore getSessionStore(final HttpServletRequest request) {
HttpSession session = request.getSession(true);
String sessionKey = "dropbox-auth-csrf-token";
return new DbxStandardSessionStore(session, sessionKey);
}

I created a custom CustomDbxSessionStore class that implements DbxSessionStore but still uses javax.servlet.http.HttpSession.

import com.dropbox.core.DbxSessionStore;
import javax.servlet.http.HttpSession;

/**
* Custom implementation of DbxSessionStore that uses javax.servlet instead of jakarta.servlet
*/
public class CustomDbxSessionStore implements DbxSessionStore {

private final HttpSession session;
private final String sessionKey;

public CustomDbxSessionStore(HttpSession session, String sessionKey) {
this.session = session;
this.sessionKey = sessionKey;
}

@Override
public String get() {
return (String) session.getAttribute(sessionKey);
}

@Override
public void set(String value) {
session.setAttribute(sessionKey, value);
}

@Override
public void clear() {
session.removeAttribute(sessionKey);
}
}

and I change the getSessionStore(..) method for using this class

private DbxSessionStore getSessionStore(final HttpServletRequest request) {
    HttpSession session = request.getSession(true);
    String sessionKey = "dropbox-auth-csrf-token";
    return new CustomDbxSessionStore(session, sessionKey);
}

It looks like this will allow me to use JDK 8 at runtime, even with the updated SDK.

Dropbox has authenticated me and allows me to import my files. Can you spot any potential issues? Can you suggest some tests to see if something isn't working? My app asks for permission from Dropbox, then imports the files, and if anything changes in Dropbox, it receives notifications and manages them.

DB-Des

@luigiafassina

We’re not able to assess whether there may be issues in your specific implementation, and we can’t make any guarantees about how your code will behave.

If you run into a specific error or unexpected behavior while using the Dropbox API or the official Java SDK, please share the request and response details (excluding any sensitive data), and we’ll be happy to take a look.

luigiafassina

Looking the documentation https://github.com/dropbox/dropbox-sdk-java I see that "The current release of Dropbox SDK Java supports Java 8+" and it is referred to sdk 7.0.0.
Given that my server is running JDK 1.8, what steps should I follow to properly use this SDK in my environment?

I don't need to compile the sdk - I just need to use the SessionStore in the following flow

// V2 api /oauth2/token
DbxWebAuth webAuth = new DbxWebAuth(reqConfig, appInfo);

DbxAuthFinish authFinish = webAuth.finishFromRedirect(redirectUri, sessionStore, params);

FullAccount accountInfo = getDropboxClientInstance().getCurrentAccount(authFinish.getAccessToken());

My goal is to retrieve the AuthorizationToken and verify wheter the user is authorized.

At the moment, with a custom SessionStore implementation that still imports javax.servlet, should I already notice if some flows don't work? Or should I wait until January to be sure that it works?

thanks

DB-Des

@luigiafassina

The certificate update taking effect in January isn’t related to the behavior of your integration, so it shouldn’t impact your current testing.