How to use IntelliJ IDEA to find all unused code?

java refactoring intellij-idea code-metrics code-inspection
pathikrit picture pathikrit · Jul 5, 2011 · Viewed 132.2k times · Source

When I am in a .java file the unused code is usually grayed out or has a green underline saying this code will probably (probably because of some weird JNI/Reflection corner cases) be unused. But I have this project with thousands of Java files and I want to find ALL INSTANCES of such probable-unused codes. How can I do that in IntelliJ IDEA?

Answer

CrazyCoder picture CrazyCoder · Jul 5, 2011

Just use Analyze | Inspect Code with appropriate inspection enabled (Unused declaration under Declaration redundancy group).

Using IntelliJ 11 CE you can now "Analyze | Run Inspection by Name ... | Unused declaration"

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