Bulletproof tests
diff --git a/src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java b/src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java
index 7d92f16..cd39fd5 100644
--- a/src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java
+++ b/src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java
@@ -77,9 +77,8 @@
                 tftp.setSoTimeout(2000);
 
                 try {
-                    // cleanup old failed runs
-                    final boolean deleted = out.delete();
-                    assertFalse(out.exists(), () -> "Couldn't clear output location, deleted=" + deleted);
+                    // check old failed runs
+                    assertFalse(out.exists(), () -> "Couldn't clear output location, deleted=");
 
                     try (final FileOutputStream output = new FileOutputStream(out)) {
                         tftp.receiveFile(file.getName(), TFTP.BINARY_MODE, output, "localhost", SERVER_PORT);
@@ -114,9 +113,8 @@
                 tftp.setSoTimeout(2000);
 
                 try {
-                    // cleanup old failed runs
-                    final boolean deleted = out.delete();
-                    assertFalse(out.exists(), () -> "Couldn't clear output location, deleted=" + deleted);
+                    // check old failed runs
+                    assertFalse(out.exists(), () -> "Couldn't clear output location, deleted=");
 
                     try (final FileOutputStream output = new FileOutputStream(out)) {
                         tftp.receiveFile(file.getName(), TFTP.BINARY_MODE, output, "localhost", SERVER_PORT);