What are jmods\*.jmod files in JDK 9 installation directory?

jmods\*.jmod files in JDK 9 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-9.0.4\jmods

       61160  java.activation.jmod
    16673580  java.base.jmod
      111467  java.compiler.jmod
     2689556  java.corba.jmod
       51910  java.datatransfer.jmod
    13681645  java.desktop.jmod
      127281  java.instrument.jmod
       18864  java.jnlp.jmod
      120151  java.logging.jmod
      880278  java.management.jmod
       89527  java.management.rmi.jmod
      444882  java.naming.jmod
       48671  java.prefs.jmod
      386684  java.rmi.jmod
       38221  java.scripting.jmod
        2144  java.se.ee.jmod
        2187  java.se.jmod
      608270  java.security.jgss.jmod
       80468  java.security.sasl.jmod
       52036  java.smartcardio.jmod
       77882  java.sql.jmod
      212019  java.sql.rowset.jmod
        3745  java.transaction.jmod
     1621387  java.xml.bind.jmod
      681802  java.xml.crypto.jmod
     5137850  java.xml.jmod
        5364  java.xml.ws.annotation.jmod
     3136298  java.xml.ws.jmod
      766033  javafx.base.jmod
     2511571  javafx.controls.jmod
      238716  javafx.deploy.jmod
      130784  javafx.fxml.jmod
     6308933  javafx.graphics.jmod
     1040504  javafx.media.jmod
       79606  javafx.swing.jmod
    19887727  javafx.web.jmod
      446457  jdk.accessibility.jmod
       31891  jdk.attach.jmod
     1529160  jdk.charsets.jmod
     6507982  jdk.compiler.jmod
      301593  jdk.crypto.cryptoki.jmod
       95298  jdk.crypto.ec.jmod
       50791  jdk.crypto.mscapi.jmod
      384263  jdk.deploy.controlpanel.jmod
     7061406  jdk.deploy.jmod
      160780  jdk.dynalink.jmod
        7023  jdk.editpad.jmod
     2387830  jdk.hotspot.agent.jmod
       99671  jdk.httpserver.jmod
      409118  jdk.incubator.httpclient.jmod
        6184  jdk.internal.ed.jmod
       88476  jdk.internal.jvmstat.jmod
      136787  jdk.internal.le.jmod
       68441  jdk.internal.opt.jmod
      397840  jdk.internal.vm.ci.jmod
      238321  jdk.jartool.jmod
     2402056  jdk.javadoc.jmod
     1870582  jdk.javaws.jmod
      107925  jdk.jcmd.jmod
      462646  jdk.jconsole.jmod
      686393  jdk.jdeps.jmod
      846970  jdk.jdi.jmod
      108682  jdk.jdwp.agent.jmod
      408676  jdk.jfr.jmod
      379687  jdk.jlink.jmod
      582059  jdk.jshell.jmod
        5417  jdk.jsobject.jmod
       28561  jdk.jstatd.jmod
     8083469  jdk.localedata.jmod
       93757  jdk.management.agent.jmod
       11141  jdk.management.cmm.jmod
       34832  jdk.management.jfr.jmod
       63237  jdk.management.jmod
      126353  jdk.management.resource.jmod
       58009  jdk.naming.dns.jmod
       18738  jdk.naming.rmi.jmod
       14297  jdk.net.jmod
      111083  jdk.pack.jmod
     1883524  jdk.packager.jmod
        6134  jdk.packager.services.jmod
      225043  jdk.plugin.dom.jmod
     3229177  jdk.plugin.jmod
      985876  jdk.plugin.server.jmod
      140678  jdk.policytool.jmod
      700453  jdk.rmic.jmod
     2209805  jdk.scripting.nashorn.jmod
       48379  jdk.scripting.nashorn.shell.jmod
       23355  jdk.sctp.jmod
       78541  jdk.security.auth.jmod
       24052  jdk.security.jgss.jmod
      527308  jdk.snmp.jmod
       18490  jdk.unsupported.jmod
     1940012  jdk.xml.bind.jmod
       42434  jdk.xml.dom.jmod
      741290  jdk.xml.ws.jmod
       87995  jdk.zipfs.jmod
        2624  oracle.desktop.jmod
        8938  oracle.net.jmod

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