then:
        failure.error.contains('ERROR: JAVA_HOME is set to an invalid directory')
    }

    @Requires([UnitTestPreconditions.Symlinks, IntegTestPreconditions.NotEmbeddedExecutor])
    def "fails when java home not set and path does not contain java"() {
        when:
        def links = ['basename', 'dirname', 'uname', 'which', 'sed', 'sh', 'bash']

	if s.msg == "" {
		return "stop"
	}
	return "stop: " + s.msg
}

// Symlink creates a symbolic link.
func Symlink() Cmd {
	return Command(
		CmdUsage{
			Summary: "create a symlink",
			Args:    "path -> target",
			Detail: []string{
				"Creates path as a symlink to target.",
				"The '->' token (like in 'ls -l' output on Unix) is required.",
			},
		},

@CompileStatic
class UnitTestPreconditions {

    static final class Symlinks implements TestPrecondition {
        @Override
        boolean isSatisfied() {
            return satisfied(MacOs) || satisfied(Linux)
        }
    }

    static final class NoSymlinks implements TestPrecondition {
        @Override
        boolean isSatisfied() {
            return notSatisfied(Symlinks)
        }
    }

        when:
        run "copy"
        then:
        file("build/tmp/testchild").mode == mode
        where:
        mode << [0755, 0776]
    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "symlinked file permissions are preserved in copy action"() {
        given:
        def mode = 0746
        def testSourceFile = file(testFileName)
        testSourceFile << "test file content"

			if err != nil && os.IsNotExist(err) {
				t.Fatalf("%v: visible symlink does not exist: %v", tc.name, visiblePath)
			} else if err != nil {
				t.Fatalf("%v: unable to read symlink %v: %v", tc.name, dataDirPath, err)
			}

			if expectedDest != destination {
				t.Fatalf("%v: symlink destination %q not same with expected data dir %q", tc.name, destination, expectedDest)
			}
		}
	}
}

			}

			// Depending on what was passed on the command line, it is possible
			// that os.Executable is a symlink (like /usr/local/bin/go) referring
			// to a binary installed in a real GOROOT elsewhere
			// (like /usr/lib/go/bin/go).
			// Try to find that GOROOT by resolving the symlinks.
			exe, err = filepath.EvalSymlinks(exe)
			if err == nil {
				if dir := filepath.Join(exe, "../.."); isGOROOT(dir) {

//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tp *Timeval) (err error)
//sysnb	Setuid(uid int) (err error)
//sys	Statfs(path string, stat *Statfs_t) (err error)
//sys	Symlink(path string, link string) (err error)
//sys	Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
//sys	Sync() (err error)
//sys	Truncate(path string, length int64) (err error)
//sys	Umask(newmask int) (oldmask int)

set, and reparse points that are not symlinks, Unix sockets, or dedup files now
always have [`os.ModeIrregular`](/pkg/os#ModeIrregular) set. As a result of these changes,
[`filepath.EvalSymlinks`](/pkg/path/filepath#EvalSymlinks) no longer evaluates
mount points, which was a source of many inconsistencies and bugs.
At previous versions (`winsymlink=0`), mount points are treated as symlinks,

#
##############################################################################

# Attempt to set APP_HOME

# Resolve links: \$0 may be a link
app_path=\$0

# Need this for daisy-chained symlinks.
while
    APP_HOME=\${app_path%"\${app_path##*/}"}  # leaves a trailing /; empty if no leading path
    [ -h "\$app_path" ]
do
    ls=\$( ls -ld "\$app_path" )
    link=\${ls#*' -> '}

	}
	test := EvalSymlinksTest{"test/linkabswin", tmpDir[:3]}

	// Create the symlink farm using relative paths.
	testdirs := append(EvalSymlinksTestDirs, test)
	for _, d := range testdirs {
		var err error
		path := simpleJoin(tmpDir, d.path)
		if d.dest == "" {
			err = os.Mkdir(path, 0755)
		} else {
			err = os.Symlink(d.dest, path)
		}
		if err != nil {
			t.Fatal(err)
		}
	}