Reuse constants

Author: garydgregory

src/test/java/org/apache/commons/io/FileUtilsCleanDirectoryTest.java

@@ -28,6 +28,7 @@
 import java.util.List;
 
 import org.apache.commons.io.file.AbstractTempDirTest;
+import org.apache.commons.lang3.ArrayUtils;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledOnOs;
 import org.junit.jupiter.api.condition.OS;
@@ -55,7 +56,7 @@ private boolean chmod(final File file, final int mode, final boolean recurse) th
         final Process proc;
 
         try {
-            proc = Runtime.getRuntime().exec(args.toArray(new String[args.size()]));
+            proc = Runtime.getRuntime().exec(args.toArray(ArrayUtils.EMPTY_STRING_ARRAY));
         } catch (final IOException e) {
             return false;
         }

src/test/java/org/apache/commons/io/FileUtilsCleanSymlinksTest.java

@@ -24,6 +24,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang3.ArrayUtils;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
@@ -47,7 +48,7 @@ private boolean setupSymlink(final File res, final File link) throws Exception {
 
         final Process proc;
 
-        proc = Runtime.getRuntime().exec(args.toArray(new String[args.size()]));
+        proc = Runtime.getRuntime().exec(args.toArray(ArrayUtils.EMPTY_STRING_ARRAY));
         return proc.waitFor() == 0;
     }
 

src/test/java/org/apache/commons/io/FileUtilsDeleteDirectoryLinuxTest.java

@@ -26,6 +26,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang3.ArrayUtils;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.DisabledOnOs;
 import org.junit.jupiter.api.condition.OS;
@@ -48,7 +49,7 @@ private boolean chmod(final File file, final int mode, final boolean recurse) th
         final Process proc;
 
         try {
-            proc = Runtime.getRuntime().exec(args.toArray(new String[args.size()]));
+            proc = Runtime.getRuntime().exec(args.toArray(ArrayUtils.EMPTY_STRING_ARRAY));
         } catch (final IOException e) {
             return false;
         }
@@ -67,7 +68,7 @@ protected boolean setupSymlink(final File res, final File link) throws Exception
 
         final Process proc;
 
-        proc = Runtime.getRuntime().exec(args.toArray(new String[args.size()]));
+        proc = Runtime.getRuntime().exec(args.toArray(ArrayUtils.EMPTY_STRING_ARRAY));
         return proc.waitFor() == 0;
     }
 

src/test/java/org/apache/commons/io/FileUtilsDeleteDirectoryWindowsTest.java

@@ -22,6 +22,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang3.ArrayUtils;
 import org.junit.jupiter.api.condition.EnabledOnOs;
 import org.junit.jupiter.api.condition.OS;
 
@@ -47,7 +48,7 @@ protected boolean setupSymlink(final File res, final File link) throws Exception
         args.add(link.getAbsolutePath());
         args.add(res.getAbsolutePath());
 
-        final Process proc = Runtime.getRuntime().exec(args.toArray(new String[args.size()]));
+        final Process proc = Runtime.getRuntime().exec(args.toArray(ArrayUtils.EMPTY_STRING_ARRAY));
         final InputStream errorStream = proc.getErrorStream();
         final int rc = proc.waitFor();
         System.err.print(IOUtils.toString(errorStream, Charset.defaultCharset()));