Try some options below: 1. mvn idea:idea 2. cd yourporject/path, rm *.iml *.ipr *.iws, the reopen idea, maven build again 3. Alt+shift+A, Type:Registry choose compiler.automake.allow.when.app.running to check
Read MoreIdea tool short cut on Mac
1. Optimize import java classes //use this short cut can remove redundant/unused classes Shift+Command + A , then Enter 2. Find java file Control + Shift + O 3. Find keyword in projects Control + Shift + F
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