test/hotspot/jtreg/runtime/8176717/TestInheritFD.java

8205054: Could not find "lsof" on test machine
Reviewed-by: goetz, dholmes

*** 170,189 ****
  
      static boolean isWindows() {
          return getProperty("os.name").toLowerCase().contains("win");
      }
  
      static Optional<String[]> lsofCommand() {
!         return stream(new String[][]{
!                 {"/usr/bin/lsof", "-p"},
!                 {"/usr/sbin/lsof", "-p"},
!                 {"/bin/lsof", "-p"},
!                 {"/sbin/lsof", "-p"},
!                 {"/usr/local/bin/lsof", "-p"},
!                 {"/usr/bin/pfiles", "-F"}}) // Solaris
!             .filter(args -> new File(args[0]).exists())
!             .findFirst();
      }
  
      static Collection<String> outputContainingFilenames() {
          long pid = ProcessHandle.current().pid();
  
--- 170,191 ----
  
      static boolean isWindows() {
          return getProperty("os.name").toLowerCase().contains("win");
      }
  
+     static Optional<String[]> lsofCommandCache = stream(new String[][]{
+             {"/usr/bin/lsof", "-p"},
+             {"/usr/sbin/lsof", "-p"},
+             {"/bin/lsof", "-p"},
+             {"/sbin/lsof", "-p"},
+             {"/usr/local/bin/lsof", "-p"},
+             {"/usr/bin/pfiles", "-F"}}) // Solaris
+         .filter(args -> new File(args[0]).exists())
+         .findFirst();
+ 
      static Optional<String[]> lsofCommand() {
!         return lsofCommandCache;
      }
  
      static Collection<String> outputContainingFilenames() {
          long pid = ProcessHandle.current().pid();