Merge branch 'master' into bael-16656

core-java-modules/multimodulemavenproject/daomodule/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.daomodule</groupId>
+    <artifactId>daomodule</artifactId>
+    <version>1.0</version>
+    <packaging>jar</packaging>
+    
+    <parent>
+        <groupId>com.baeldung.multimodulemavenproject</groupId>
+        <artifactId>multimodulemavenproject</artifactId>
+        <version>1.0</version>
+    </parent>
+    
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+    
+    <properties>
+        <maven.compiler.source>9</maven.compiler.source>
+        <maven.compiler.target>9</maven.compiler.target>
+    </properties>
+</project>

core-java-modules/multimodulemavenproject/daomodule/src/main/java/com/baeldung/daomodule/Dao.java

@@ -0,0 +1,11 @@
+package com.baeldung.daomodule;
+import java.util.List;
+import java.util.Optional;
+
+public interface Dao<T> {
+
+    Optional<T> findById(int id);
+
+    List<T> findAll();
+
+}

core-java-modules/multimodulemavenproject/daomodule/src/main/java/module-info.java

@@ -0,0 +1,3 @@
+module com.baeldung.daomodule {
+    exports com.baeldung.daomodule;
+}