Add RetryUtility with exponential backoff

.gitignore

+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
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.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="ms-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/RetryUtility.iml" filepath="$PROJECT_DIR$/RetryUtility.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

RetryUtility.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file

src/RetryUtility.java

+import java.util.concurrent.Callable;
+
+public class RetryUtility {
+
+    public static <T> T retry(Callable<T> task, int maxRetries, long initialDelayMillis) throws Exception {
+        int attempt = 0;
+        while (true) {
+            try {
+                return task.call();  // Try to execute the task
+            } catch (Exception e) {
+                attempt++;
+                if (attempt > maxRetries) {
+                    throw new Exception("All retry attempts failed", e);
+                }
+
+                long backoffTime = initialDelayMillis * (1L << (attempt - 1));  // Exponential backoff
+                System.out.println("Attempt " + attempt + " failed: " + e.getMessage());
+                System.out.println("Retrying in " + backoffTime + "ms...");
+
+                Thread.sleep(backoffTime);
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        try {
+            String result = retry(() -> {
+                // Simulate network call that fails randomly
+                if (Math.random() < 0.7) {
+                    throw new RuntimeException("Network error!");
+                }
+                return "Success!";
+            }, 5, 1000);  // Retry up to 5 times, starting with 1 second delay
+
+            System.out.println("Final Result: " + result);
+        } catch (Exception e) {
+            System.err.println("Operation failed after retries: " + e.getMessage());
+        }
+    }
+}