Add dd-openfeature SDK flag configuration and evaluation core

.github/CODEOWNERS

@@ -355,6 +355,7 @@
 **/kafka*/**/*Iast*                                                                          @DataDog/asm-java @DataDog/data-streams-monitoring @DataDog/apm-idm-java
 
 # @DataDog/feature-flagging-and-experimentation-sdk
+/dd-openfeature/              @DataDog/feature-flagging-and-experimentation-sdk
 /dd-smoke-tests/openfeature/  @DataDog/feature-flagging-and-experimentation-sdk
 /products/feature-flagging/   @DataDog/feature-flagging-and-experimentation-sdk
 

dd-openfeature/build.gradle.kts

@@ -0,0 +1,38 @@
+import datadog.gradle.configureCompiler
+import datadog.gradle.plugin.testJvmConstraints.TestJvmConstraintsExtension
+
+plugins {
+  `java-library`
+  idea
+  id("dd-trace-java.conventions.java")
+}
+
+description = "Datadog OpenFeature provider SDK."
+
+configure<TestJvmConstraintsExtension> {
+  minJavaVersion.set(JavaVersion.VERSION_11)
+}
+
+idea {
+  module {
+    jdkName = "11"
+  }
+}
+
+java {
+  toolchain {
+    languageVersion = JavaLanguageVersion.of(11)
+  }
+}
+
+dependencies {
+  api("dev.openfeature:sdk:1.22.0")
+  api(libs.jackson.core)
+
+  testImplementation(libs.bundles.junit5)
+  testImplementation(libs.bundles.mockito)
+}
+
+tasks.withType<JavaCompile>().configureEach {
+  configureCompiler(JavaVersion.VERSION_11)
+}

dd-openfeature/gradle.lockfile

@@ -0,0 +1,78 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+# To regenerate this file, run: ./gradlew :dd-openfeature:dependencies --write-locks
+ch.qos.logback:logback-classic:1.2.13=testCompileClasspath,testRuntimeClasspath
+ch.qos.logback:logback-core:1.2.13=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-core:2.20.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson:jackson-bom:2.20.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.github.javaparser:javaparser-core:3.25.6=codenarc
+com.github.spotbugs:spotbugs-annotations:4.10.4=compileClasspath,spotbugs
+com.github.spotbugs:spotbugs:4.10.4=spotbugs
+com.github.stephenc.jcip:jcip-annotations:1.0-1=spotbugs
+com.google.code.findbugs:jsr305:3.0.2=compileClasspath,spotbugs,testCompileClasspath,testRuntimeClasspath
+com.google.code.gson:gson:2.14.0=spotbugs
+com.google.errorprone:error_prone_annotations:2.48.0=spotbugs
+com.thoughtworks.qdox:qdox:1.12.1=codenarc
+commons-io:commons-io:2.21.0=spotbugs
+de.thetaphi:forbiddenapis:3.11=compileClasspath
+dev.openfeature:sdk:1.22.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+io.leangen.geantyref:geantyref:1.3.16=testRuntimeClasspath
+jaxen:jaxen:2.0.6=spotbugs
+net.bytebuddy:byte-buddy-agent:1.18.12=testCompileClasspath,testRuntimeClasspath
+net.bytebuddy:byte-buddy:1.18.12=testCompileClasspath,testRuntimeClasspath
+net.sf.saxon:Saxon-HE:12.10=spotbugs
+org.apache.ant:ant-antlr:1.10.14=codenarc
+org.apache.ant:ant-junit:1.10.14=codenarc
+org.apache.bcel:bcel:6.12.0=spotbugs
+org.apache.commons:commons-lang3:3.20.0=spotbugs
+org.apache.commons:commons-text:1.15.0=spotbugs
+org.apache.logging.log4j:log4j-api:2.26.1=spotbugs
+org.apache.logging.log4j:log4j-core:2.26.1=spotbugs
+org.apiguardian:apiguardian-api:1.1.2=testCompileClasspath,testRuntimeClasspath
+org.codehaus.groovy:groovy-ant:3.0.23=codenarc
+org.codehaus.groovy:groovy-docgenerator:3.0.23=codenarc
+org.codehaus.groovy:groovy-groovydoc:3.0.23=codenarc
+org.codehaus.groovy:groovy-json:3.0.23=codenarc
+org.codehaus.groovy:groovy-json:3.0.25=testCompileClasspath,testRuntimeClasspath
+org.codehaus.groovy:groovy-templates:3.0.23=codenarc
+org.codehaus.groovy:groovy-xml:3.0.23=codenarc
+org.codehaus.groovy:groovy:3.0.23=codenarc
+org.codehaus.groovy:groovy:3.0.25=testCompileClasspath,testRuntimeClasspath
+org.codenarc:CodeNarc:3.7.0=codenarc
+org.dom4j:dom4j:2.2.0=spotbugs
+org.gmetrics:GMetrics:2.1.0=codenarc
+org.hamcrest:hamcrest:3.0=testCompileClasspath,testRuntimeClasspath
+org.jacoco:org.jacoco.agent:0.8.15=jacocoAgent,jacocoAnt
+org.jacoco:org.jacoco.ant:0.8.15=jacocoAnt
+org.jacoco:org.jacoco.core:0.8.15=jacocoAnt
+org.jacoco:org.jacoco.report:0.8.15=jacocoAnt
+org.junit.jupiter:junit-jupiter-api:5.14.1=testCompileClasspath,testRuntimeClasspath
+org.junit.jupiter:junit-jupiter-engine:5.14.1=testRuntimeClasspath
+org.junit.jupiter:junit-jupiter-params:5.14.1=testCompileClasspath,testRuntimeClasspath
+org.junit.jupiter:junit-jupiter:5.14.1=testCompileClasspath,testRuntimeClasspath
+org.junit.platform:junit-platform-commons:1.14.1=testCompileClasspath,testRuntimeClasspath
+org.junit.platform:junit-platform-engine:1.14.1=testCompileClasspath,testRuntimeClasspath
+org.junit.platform:junit-platform-launcher:1.14.1=testRuntimeClasspath
+org.junit:junit-bom:5.14.1=testCompileClasspath,testRuntimeClasspath
+org.mockito:mockito-core:4.4.0=testCompileClasspath,testRuntimeClasspath
+org.mockito:mockito-junit-jupiter:4.4.0=testCompileClasspath,testRuntimeClasspath
+org.objenesis:objenesis:3.3=testCompileClasspath,testRuntimeClasspath
+org.opentest4j:opentest4j:1.3.0=testCompileClasspath,testRuntimeClasspath
+org.ow2.asm:asm-analysis:9.10.1=spotbugs
+org.ow2.asm:asm-commons:9.10.1=jacocoAnt,spotbugs
+org.ow2.asm:asm-tree:9.10.1=jacocoAnt,spotbugs
+org.ow2.asm:asm-util:9.10.1=spotbugs
+org.ow2.asm:asm:9.10.1=jacocoAnt,spotbugs
+org.slf4j:jcl-over-slf4j:1.7.30=testCompileClasspath,testRuntimeClasspath
+org.slf4j:jul-to-slf4j:1.7.30=testCompileClasspath,testRuntimeClasspath
+org.slf4j:log4j-over-slf4j:1.7.30=testCompileClasspath,testRuntimeClasspath
+org.slf4j:slf4j-api:2.0.17=spotbugsSlf4j
+org.slf4j:slf4j-api:2.0.18=compileClasspath,runtimeClasspath,spotbugs,testCompileClasspath,testRuntimeClasspath
+org.slf4j:slf4j-simple:2.0.17=spotbugsSlf4j
+org.spockframework:spock-bom:2.4-groovy-3.0=testCompileClasspath,testRuntimeClasspath
+org.spockframework:spock-core:2.4-groovy-3.0=testCompileClasspath,testRuntimeClasspath
+org.tabletest:tabletest-junit:1.2.2=testCompileClasspath,testRuntimeClasspath
+org.tabletest:tabletest-parser:1.2.1=testCompileClasspath,testRuntimeClasspath
+org.xmlresolver:xmlresolver:5.3.3=spotbugs
+empty=annotationProcessor,spotbugsPlugins,testAnnotationProcessor