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  1. JDK
  2. JDK-8241568

(fs) UserPrincipalLookupService.lookupXXX failure with IOE "Operation not permitted"

    Details

    • Subcomponent:
    • Resolved In Build:
      b18
    • OS:
      linux

      Backports

        Description

        java/nio/file/attribute/PosixFileAttributeView/Basic.java has started to fail recently on two Ubuntu 18.04 aarch64 systems at SAP.

        An example failure is:

        -- Lookup UserPrincipal Tests --
        lookup: jvmtests
        lookup group: kmem
        lookup: scumbag99
        ----------System.err:(17/1126)----------
        java.io.IOException: scumbag99: Operation not permitted
        at java.base/sun.nio.fs.UnixUserPrincipals.lookupName(UnixUserPrincipals.java:148)
        at java.base/sun.nio.fs.UnixUserPrincipals.lookupUser(UnixUserPrincipals.java:170)
        at java.base/sun.nio.fs.UnixFileSystem$LookupService$1.lookupPrincipalByName(UnixFileSystem.java:328)
        at Basic.lookupPrincipalTests(Basic.java:305)
        at Basic.main(Basic.java:390)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
        at java.base/java.lang.Thread.run(Thread.java:834)

        JavaTest Message: Test threw exception: java.io.IOException: scumbag99: Operation not permitted

        It appears that that getpwnam_r and getgrnam_r are failing with the error EPERM when these libc functions are called to lookup user or group names that do not exist.

        As per man page of getpwnam_r, EPERM is a well defined error code that should indicate that "The given name or uid was not found."

        https://linux.die.net/man/3/getpwnam_r

        Errors
        0 or ENOENT or ESRCH or EBADF or EPERM or ...

        The given name or uid was not found.

        I suggest to add EBADF and EPERM to the checked return codes in UnixNativeDispatcher.c

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                • Assignee:
                  clanger Christoph Langer
                  Reporter:
                  clanger Christoph Langer
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                  • Created:
                    Updated:
                    Resolved: