1Z0-829 Java Platform Overview and Packaging Practice Question
A company uses CI/CD to build and package a Java 17 application. They want to produce a single executable JAR that includes all dependencies. Which tool should be used to achieve this?
⚠ Common exam trap
Many exam-takers confuse the Maven JAR Plugin (which only packages the project's own code) with the Shade Plugin (which bundles dependencies), or mistakenly think the Java jar command or jlink can automatically resolve and include Maven dependencies.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Maven Shade Plugin
The Maven Shade Plugin (B) is the correct choice because it creates an uber-JAR (fat JAR) by merging all project dependencies into a single executable JAR, including transitive dependencies. It also provides a relocation feature to avoid classpath conflicts, which is essential for producing a self-contained artifact for deployment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Maven JAR Plugin
Why it's wrong here
Maven JAR Plugin creates a standard JAR without dependencies.
- ✓
Maven Shade Plugin
Why this is correct
Maven Shade Plugin creates an uber-JAR with all dependencies.
- ✗
Java jar command
Why it's wrong here
The jar command packages files but does not resolve dependencies.
- ✗
jlink tool
Why it's wrong here
jlink creates a custom runtime image, not an executable JAR.
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