Study 1Z0-831 Java 25 JPMS, Packaging, and Launch Model: key concepts, common traps, and exam decision cues.
Module questions punish vague vocabulary. Launch-model questions do the same. Java 25 adds just enough new wording here to make exact reading matter even more.
| If the stem is mainly about… | Better first instinct |
|---|---|
| dependency between modules | requires |
| visibility to other modules | exports |
| plain JAR on module path | automatic-module reasoning |
| simple Java 25 launch style | compact source-file / instance-main model awareness |
| Trap | Better rule |
|---|---|
treating requires like exposure |
dependency and export are different |
| assuming every Java 25 new launch term means the same feature name in every doc | Oracle docs still use overlapping terminology |
| ignoring feature status on module import declarations | preview status still matters |