Java Platform Overview and Packaging →mediumMultiple ChoiceObjective-mapped

1Z0-829 Java Platform Overview and Packaging Practice Question

Exhibit

Refer to the exhibit.
```
$ jdeps -summary -s -cp lib/*:classes -R app.jar
app.jar -> java.base
app.jar -> java.sql
app.jar -> com.thirdparty.util
app.jar -> com.thirdparty.helper (modular)
   com.thirdparty.helper -> java.base
```

A developer runs the above jdeps command on app.jar. Which statement about the dependencies is correct?

⚠ Common exam trap

Oracle often tests the implicit dependency on `java.base` to catch candidates who think all module dependencies must be explicitly declared in `module-info.java`.

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

✓

The app.jar depends on java.base implicitly.

Every Java module automatically has an implicit dependency on the `java.base` module, which is always resolved by the module system. The `jdeps` command analyzes dependencies, and even if no explicit `requires java.base` is declared, the module system adds it implicitly. This is a fundamental rule of the Java Platform Module System (JPMS) as defined in JSR 376.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
The app.jar has a direct dependency on the class com.thirdparty.util.
Why it's wrong here
jdeps summary shows module-level, not class-level dependencies.
✗
The modular dependency com.thirdparty.helper is not required because it is modular.
Why it's wrong here
Modular dependencies are still required.
✗
The dependencies on com.thirdparty.util and com.thirdparty.helper are on the module path.
Why it's wrong here
The exhibit shows -cp for classpath, so they are on classpath.
✓
The app.jar depends on java.base implicitly.
Why this is correct
All Java applications implicitly depend on java.base.

Visual reference

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1Z0-829 Java Platform Overview and Packaging Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

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