[sdks] Document Japtos the java SDK

[gregnazario]

AI generated some docs for the Japtos SDK

Have not had time to go and review it too much, so please take a look at it.

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Project	Deployment	Preview	Comments	Updated (UTC)
aptos-docs	Ready	Preview	Comment	Oct 31, 2025 3:23pm

[rrigoni]

There are docs for all the main features in the read me here https://github.com/aptos-labs/japtos

[Copilot]

Pull Request Overview

This PR adds comprehensive Java SDK documentation for Aptos, including installation instructions, quickstart guides, account management, transaction building, and extensive code examples.

• Adds Java SDK overview page with installation and basic usage examples
• Includes quickstart guide with step-by-step instructions for a simple token transfer
• Provides detailed documentation on account management including Ed25519, multi-signature, and HD wallets
• Documents transaction building, signing, simulation, and submission workflows
• Adds comprehensive code examples covering common use cases

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/content/nav/en.ts	Adds Java SDK navigation label
src/content/docs/build/sdks/java-sdk/quickstart.mdx	New quickstart guide with complete APT transfer example
src/content/docs/build/sdks/java-sdk/java-examples.mdx	New examples page with multiple use cases and patterns
src/content/docs/build/sdks/java-sdk/building-transactions.mdx	New transaction building guide with detailed explanations
src/content/docs/build/sdks/java-sdk/account.mdx	New account management guide covering various account types
src/content/docs/build/sdks/java-sdk.mdx	New Java SDK overview page with features and basic examples
src/content/docs/build/sdks.mdx	Adds Java SDK link to main SDKs page
astro.sidebar.ts	Adds Java SDK section to sidebar navigation

Comments suppressed due to low confidence (1)

src/content/docs/build/sdks/java-sdk/account.mdx:1

• This code accesses nested JSON properties without null checks. While this may work in controlled examples, consider adding a note that production code should include null checking or error handling when accessing JSON properties, as the resource might not exist or have an unexpected structure.

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[Copilot]

The BIP44 derivation path format uses hardened derivation (indicated by the apostrophe). Consider adding a brief note explaining what the numbers represent: m / purpose' / coin_type' / account' / change' / address_index'. This would help developers understand how to modify the path for deriving multiple accounts.

Suggested change

	// Derive multiple accounts from same mnemonic
	// Derive multiple accounts from same mnemonic
	// BIP44 derivation path format: m / purpose' / coin_type' / account' / change' / address_index'
	// For Aptos, purpose is 44', coin_type is 637', account' is the account number, change' is 0' (external), address_index' is 0'

[Copilot]

The getBalance method chains JSON access operations without null safety. Consider adding a note in the surrounding documentation that this simplified approach assumes the account is funded and the resource exists. Production code should handle cases where the resource might not exist.

[Copilot]

Similar to other examples, this JSON property access lacks null safety. Since this is in an examples file, consider adding a comment within the code or in the surrounding text noting that error handling has been omitted for brevity but should be included in production code.

[rrigoni]

We are moving the library to maven central repo and configuration will change (packageid), lets hold until IT configures the maven central repo so I can push to it.

[rrigoni]

@gregnazario , it is published, please update the maven artifactId in the docs to the following:

<dependency>
    <groupId>io.github.aptos-labs</groupId>
    <artifactId>japtos</artifactId>
    <version>1.1.4</version>
</dependency>

https://central.sonatype.com/artifact/io.github.aptos-labs/japtos