How does Eclipse introduce non-src/main/java directories in the Maven project into the classpath?

how does Eclipse introduce non-src/main/java directories in Maven projects into the classpath?

Sep.28,2021

specify a new src path in pom.xml

    <build>
        <sourceDirectory>my/other/src/path</sourceDirectory>
    ...

then click maven-> update project on the project context menu in eclipse

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7bc2f3-26d8a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7bc2f3-26d8a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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