What are jmods\*.jmod files in JDK 11 installation directory?

jmods\*.jmod files in JDK 11 installation directory are JMod files for Java language modules and JDK tool modules.

You can list them with the "dir" command:

C:>dir \fyicenter\jdk-11.0.1\jmods

    18417916  java.base.jmod
      111437  java.compiler.jmod
       50885  java.datatransfer.jmod
    11990438  java.desktop.jmod
      118988  java.instrument.jmod
      112569  java.logging.jmod
      888324  java.management.jmod
       89026  java.management.rmi.jmod
      445869  java.naming.jmod
      693930  java.net.http.jmod
       54459  java.prefs.jmod
      378379  java.rmi.jmod
       44949  java.scripting.jmod
        2205  java.se.jmod
      654107  java.security.jgss.jmod
       80581  java.security.sasl.jmod
       58642  java.smartcardio.jmod
       75531  java.sql.jmod
      188366  java.sql.rowset.jmod
        4023  java.transaction.xa.jmod
      667377  java.xml.crypto.jmod
     4484268  java.xml.jmod
      496875  jdk.accessibility.jmod
      280824  jdk.aot.jmod
       38653  jdk.attach.jmod
     1485159  jdk.charsets.jmod
     7068669  jdk.compiler.jmod
      307789  jdk.crypto.cryptoki.jmod
      129372  jdk.crypto.ec.jmod
       61683  jdk.crypto.mscapi.jmod
      162457  jdk.dynalink.jmod
        7066  jdk.editpad.jmod
     2355161  jdk.hotspot.agent.jmod
       99510  jdk.httpserver.jmod
        7353  jdk.internal.ed.jmod
       89818  jdk.internal.jvmstat.jmod
      185066  jdk.internal.le.jmod
       81191  jdk.internal.opt.jmod
      408484  jdk.internal.vm.ci.jmod
     6168781  jdk.internal.vm.compiler.jmod
       12043  jdk.internal.vm.compiler.management.jmod
      199579  jdk.jartool.jmod
     1633041  jdk.javadoc.jmod
      148149  jdk.jcmd.jmod
      466721  jdk.jconsole.jmod
      727906  jdk.jdeps.jmod
      860852  jdk.jdi.jmod
      123649  jdk.jdwp.agent.jmod
      422257  jdk.jfr.jmod
      397753  jdk.jlink.jmod
      640728  jdk.jshell.jmod
        5425  jdk.jsobject.jmod
       33901  jdk.jstatd.jmod
     9549778  jdk.localedata.jmod
       81249  jdk.management.agent.jmod
       34784  jdk.management.jfr.jmod
       69060  jdk.management.jmod
       58032  jdk.naming.dns.jmod
       18752  jdk.naming.rmi.jmod
       20633  jdk.net.jmod
      134233  jdk.pack.jmod
      527799  jdk.rmic.jmod
     2193897  jdk.scripting.nashorn.jmod
       56950  jdk.scripting.nashorn.shell.jmod
       23436  jdk.sctp.jmod
       74935  jdk.security.auth.jmod
       24097  jdk.security.jgss.jmod
       13903  jdk.unsupported.desktop.jmod
       17629  jdk.unsupported.jmod
       42461  jdk.xml.dom.jmod
       87955  jdk.zipfs.jmod

⇒ JDK 11 lib/modules - Runtime JImage File

⇐ JDK 11 Installed Directories and Files

⇑ Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)