Use pid and timestamp to generate tmp file name

Author: dnestoro

common/utils/src/main/java/org/graalvm/buildtools/agent/AgentConfiguration.java

@@ -163,17 +163,10 @@ private void addDefaultAccessFilter() {
                 logger.info("Ignore directory creation because " + agentDir + " directory is already created.");
             }
 
-            Path tmpAccessFilter = null;
-            try {
-                 tmpAccessFilter = Files.createTempFile(agentDir, ACCESS_FILTER_PREFIX, ACCESS_FILTER_SUFFIX);
-                Files.copy(accessFilterData, tmpAccessFilter);
-            } catch (FileAlreadyExistsException e) {
-                logger.info("Temporary access-filter file already exists and we should just rename it.");
-            }
-
-            if (tmpAccessFilter == null) {
-                throw new IOException("Cannot create temporary access-filter file.");
-            }
+            long pid = ProcessHandle.current().pid();
+            long time = System.currentTimeMillis();
+            Path tmpAccessFilter = agentDir.resolve(ACCESS_FILTER_PREFIX + pid + time + ACCESS_FILTER_SUFFIX);
+            Files.copy(accessFilterData, tmpAccessFilter);
 
             try {
                 Files.move(tmpAccessFilter, accessFilterFile, StandardCopyOption.ATOMIC_MOVE);