1Z0-829 Java Platform Overview and Packaging Practice Question
A developer runs 'jdeps -s --module-path lib myapp.jar' and gets output: 'myapp.jar -> java.base, myapp.jar -> java.sql, myapp.jar -> notfound'. What does the 'notfound' entry indicate?
⚠ Common exam trap
Test-takers frequently confuse 'notfound' with a missing JAR file or a corrupt archive, but jdeps specifically reports unresolved module dependencies, not file system errors.
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 application has a dependency on a package that is not provided by any module on the module path.
The 'notfound' entry in the jdeps -s output indicates that the application has a dependency on a package that is not provided by any module on the module path. The -s (summary) flag shows module-level dependencies, and when a required module cannot be located among the specified modules or the JDK's built-in modules, jdeps reports it as 'notfound'. This means the dependency cannot be resolved at analysis time, typically because the required module is missing from the module path.
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 application has a dependency on a package that is not provided by any module on the module path.
Why this is correct
The 'notfound' indicates an unknown dependency that cannot be resolved to any module.
- ✗
The dependency is resolved but its module name is not printed due to a summary flag.
Why it's wrong here
The -s flag prints summary; if resolved, it would print the module name, not 'notfound'.
- ✗
The jar file is missing or corrupt.
Why it's wrong here
jdeps analyzes the given jar; if the jar itself were missing, jdeps would fail with an error, not show 'notfound'.
- ✗
There is a cyclic dependency among modules.
Why it's wrong here
Cyclic dependencies are reported as cycles, not 'notfound'.
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