Merge branch 'master' into JAVA-47968

# Conflicts:
#	spring-boot-modules/spring-boot-keycloak-2/pom.xml

Author: Bipinkumar27

core-java-modules/core-java-concurrency-basic-4/src/test/java/com/baeldung/concurrent/busywaiting/BusyWaitingManualTest.java

@@ -0,0 +1,78 @@
+package com.baeldung.concurrent.busywaiting;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class BusyWaitingManualTest {
+
+    private static final Logger logger = LoggerFactory.getLogger(BusyWaitingManualTest.class);
+
+    @Test
+    void givenWorkerThread_whenBusyWaiting_thenAssertExecutedMultipleTimes() {
+        AtomicBoolean taskDone = new AtomicBoolean(false);
+        long counter = 0;
+
+        Thread worker = new Thread(() -> {
+            simulateThreadWork();
+            taskDone.set(true);
+        });
+
+        worker.start();
+
+        while (!taskDone.get()) {
+            counter++;
+        }
+
+        logger.info("Counter: {}", counter);
+        assertNotEquals(1, counter);
+    }
+
+    @Test
+    void givenWorkerThread_whenUsingWaitNotify_thenWaitEfficientlyOnce() {
+        AtomicBoolean taskDone = new AtomicBoolean(false);
+        final Object monitor = new Object();
+        long counter = 0;
+
+        Thread worker = new Thread(() -> {
+            simulateThreadWork();
+            synchronized (monitor) {
+                taskDone.set(true);
+                monitor.notify();
+            }
+        });
+
+        worker.start();
+
+        synchronized (monitor) {
+            while (!taskDone.get()) {
+                counter++;
+                try {
+                    monitor.wait();
+                } catch (InterruptedException e) {
+                    Thread.currentThread()
+                        .interrupt();
+                    fail("Test case failed due to thread interruption!");
+                }
+            }
+        }
+
+        assertEquals(1, counter);
+    }
+
+    private void simulateThreadWork() {
+        try {
+            Thread.sleep(500);
+        } catch (InterruptedException e) {
+            Thread.currentThread()
+                .interrupt();
+        }
+    }
+
+}

gradle-modules/gradle-customization/gradle-smithy/.gitattributes

@@ -0,0 +1,9 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+

gradle-modules/gradle-customization/gradle-smithy/.gitignore

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+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build

gradle-modules/gradle-customization/gradle-smithy/build.gradle

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+plugins {
+    id 'java-library'
+    id 'java-test-fixtures'
+    id 'application'
+    // Executes smithy-build process to generate client code
+    id 'software.amazon.smithy.gradle.smithy-base'
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+def smithyJavaVersion = project.property('smithyJavaVersion')
+
+// === Code generators ===
+dependencies {
+    smithyBuild "software.amazon.smithy.java.codegen:plugins:${smithyJavaVersion}"
+
+    // === Client Dependencies ===
+    implementation "software.amazon.smithy.java:aws-client-restjson:${smithyJavaVersion}"
+
+    // === Server Dependencies ===
+    implementation "software.amazon.smithy.java:server-netty:${smithyJavaVersion}"
+    implementation "software.amazon.smithy.java:aws-server-restjson:${smithyJavaVersion}"
+
+    // === Test Fixtures ===
+    testFixturesApi("org.junit.jupiter:junit-jupiter-api:5.5.2")
+    testFixturesImplementation("org.junit.jupiter:junit-jupiter-engine:5.5.2")
+}
+
+// Add generated client source code to the main sourceSet
+afterEvaluate {
+    def clientPath = smithy.getPluginProjectionPath(smithy.sourceProjection.get(), "java-client-codegen")
+    sourceSets.main.java.srcDir clientPath
+}
+
+// Add generated server source code to the main sourceSet
+afterEvaluate {
+    def serverPath = smithy.getPluginProjectionPath(smithy.sourceProjection.get(), "java-server-codegen")
+    sourceSets.main.java.srcDir serverPath
+}
+
+tasks.named('compileJava') {
+    dependsOn 'smithyBuild'
+}
+
+application {
+    mainClass = "com.baeldung.smithy.books.server.Main"
+}
+
+tasks.test {
+    useJUnitPlatform()
+}

gradle-modules/gradle-customization/gradle-smithy/gradle.properties

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+smithyGradleVersion=1.3.0
+smithyJavaVersion=0.0.1

gradle-modules/gradle-customization/gradle-smithy/gradle/wrapper/gradle-wrapper.jar

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists