David R. Heffelfinger

Java Champion, Apache NetBeans PMC Member, Technical Author, Jakarta EE Consultant and Instructor.

[Tomitribe @tomitribe]

Open source risk rarely shows up at install time. It shows up later—when versions age, patches lag, and security vulnerabilities surface. Lifecycle planning matters.
https://t.co/y7q0E6DxDx
#OpenSource #OSSSecurity #SoftwareLifecycle

[David R. Heffelfinger @ensode]

Happy to announce that my latest book, hashtag#JakartaEE Application Development, is part of the Humble Tech Book Bundle: App Development Best Practices.

https://t.co/1LiDvfZIDN

[Payara @Payara_Fish]

Read what you can find in our latest podcast episode featuring David Heffelfinger @ensode. Learn about his new book, 'Jakarta EE Application Development' and gain valuable insights into the world of #Java and #JakartaEE app development: https://t.co/Kq1YZM8hH5

[Payara @Payara_Fish]

A new #PayaraPodcast episode is out! Catch up on our conversation with @ensode as he discusses his latest book, 'Jakarta EE Application Development'. Gain insights into Java development and discover the inspiration behind David's new publication: https://t.co/Dus1PJtQrz

[Sharat Chander @sharatchander.bsky.social @Sharat_Chander]

🚨JavaOne is BACK!🚨

On behalf of the @Java Team at @Oracle, I'm happy to announce the RETURN OF @JavaOne!

Learn more ➡️ https://t.co/kdzHB1gRye

#Java #OpenJDK #JDK #Java #JavaOne

[David R. Heffelfinger @ensode]

Looks like @Payara_Fish is holding a hackathon, starting March 11th (today) until March 31st.

https://t.co/5JBlYQy5cG

[David R. Heffelfinger @ensode]

My latest book, @JakartaEE Application Development, has now been published by @PacktPublishing

https://t.co/A2K3GxqldJ

[David R. Heffelfinger @ensode]

My @JakartaEE book can be preordered on Amazon:

https://t.co/Izj0xGbOcY

[David R. Heffelfinger @ensode]

What's the accepted acronym for Jakarta Enterprise beans?

https://t.co/B7ClUzTelo

JEB?, EB?, something else?

[Java @java]

Java 21 is now available! #Java21 #JDK21 #OpenJDK

Download Now: https://t.co/KCklfAPOOP
Release notes: https://t.co/jNXlB4OIbY
API Javadoc: https://t.co/XFJkHTukQi
Features: https://t.co/tqz0H6mTXi
Inside Java on JDK21: https://t.co/OeV1Jtfago

[Payara @Payara_Fish]

How to Use the Payara @netbeans Plugin
Apache NetBeans is a popular IDE for Java development, offering a wide range of features for streamlining the development process. Find out how to use it with Payara 6!
https://t.co/bWzSrLQTo7

[Java Champions @Java_Champions]

Congratulations to new #Java Champion @jasondlee

[David R. Heffelfinger @ensode]

Very interesting read

[Doron B. @Doron__B]

https://t.co/EU2H5lM4Ku

My first ever article! Because everyone should write extensively somewhere, even if it's globally embarrassing. It's very long, but give it a chance, as you might learn something... or fall asleep.

#Programming #History #Math

[Java Champions @Java_Champions]

Congratulations to new #Java Champion @TCoolsIT

[David R. Heffelfinger @ensode]

@iamdvr @Java_EE @JakartaEE That's a unique problem. I'm afraid I don't have much experience with that particular situation.

Perhaps instead of bytecode manipulation, run a script at build time to change the imports, then use maven profiles to change the dependencies.

[David R. Heffelfinger @ensode]

Been migrating some @Java_EE projects to @JakartaEE recently.

For the most part, all it takes is a global search and replace:

Replace all occurrences of "import javax" with "import jakarta"

And stuff "just works".

[Jakarta EE @JakartaEE]

Now featuring multiple profiles geared towards producing microservices or full stack applications, the #JakartaEE Platform provides flexibility for developing applications of all sizes. Learn more in our new video: https://t.co/IX4FL882hM #opensource #JavaEE

[David R. Heffelfinger @ensode]

@seinecle @JakartaEE @netbeans @OmniFaces @ASFMavenProject @gradle pom looks good.

Not sure if it will make a difference, but it may be worth a shot to upgrade to @NetBeans 18 final.

That's what I'm using, and it recognizes the new namespaces just fine.

https://t.co/yuhjuinQWS

[David R. Heffelfinger @ensode]

When migrating your JSF pages to @JakartaEE Faces, don't forget to update your XML namespaces

<html xmlns="https://t.co/pnU1TFl0aG"
𝘅𝗺𝗹𝗻𝘀:𝗵="𝗷𝗮𝗸𝗮𝗿𝘁𝗮.𝗳𝗮𝗰𝗲𝘀.𝗵𝘁𝗺𝗹"
𝘅𝗺𝗹𝗻𝘀:𝗳="𝗷𝗮𝗸𝗮𝗿𝘁𝗮.𝗳𝗮𝗰𝗲𝘀.𝗰𝗼𝗿𝗲">

[David R. Heffelfinger @ensode]

@seinecle @JakartaEE @netbeans @OmniFaces Works for me.

I'm on @NetBeans 18, try upgrading if you are on an earlier version.

Also make sure your @ASFMavenProject / @gradle dependencies are for Jakarta EE

<groupId>jakarta.platform</groupId>
<artifactId>jakarta.jakartaee-web-api</artifactId>

[David R. Heffelfinger @ensode]

When migrating to @JakartaEE , don't forget to update your JPA propertis in persistence.xml
<properties>
<property name="𝗷𝗮𝗸𝗮𝗿𝘁𝗮.persistence.schema-generation.database.action" value="create"/>
</properties>

[David R. Heffelfinger @ensode]

@debugagent @SeanMiPhillips Congratulations!