fix: resolve Java CouchDB index deployment and add ledger-queries Java implementation

README.md

@@ -37,7 +37,7 @@ transfer an asset in a more realistic transfer scenario.
 |  **Smart Contract** | **Description** | **Tutorial** | **Smart contract languages** | **Application languages** |
 | -----------|------------------------------|----------|---------|---------|
 | [Basic](asset-transfer-basic) | The Basic sample smart contract that allows you to create and transfer an asset by putting data on the ledger and retrieving it. This sample is recommended for new Fabric users. | [Writing your first application](https://hyperledger-fabric.readthedocs.io/en/latest/write_first_app.html) | Go, JavaScript, TypeScript, Java | Go, TypeScript, Java |
-| [Ledger queries](asset-transfer-ledger-queries) | The ledger queries sample demonstrates range queries and transaction updates using range queries (applicable for both LevelDB and CouchDB state databases), and how to deploy an index with your chaincode to support JSON queries (applicable for CouchDB state database only). | [Using CouchDB](https://hyperledger-fabric.readthedocs.io/en/latest/couchdb_tutorial.html) | Go, JavaScript | Java, JavaScript |
+| [Ledger queries](asset-transfer-ledger-queries) | The ledger queries sample demonstrates range queries and transaction updates using range queries (applicable for both LevelDB and CouchDB state databases), and how to deploy an index with your chaincode to support JSON queries (applicable for CouchDB state database only). | [Using CouchDB](https://hyperledger-fabric.readthedocs.io/en/latest/couchdb_tutorial.html) | Go, JavaScript, Java, TypeScript | Java, JavaScript |
 | [Private data](asset-transfer-private-data) | This sample demonstrates the use of private data collections, how to manage private data collections with the chaincode lifecycle, and how the private data hash can be used to verify private data on the ledger. It also demonstrates how to control asset updates and transfers using client-based ownership and access control. | [Using Private Data](https://hyperledger-fabric.readthedocs.io/en/latest/private_data_tutorial.html) | Go, TypeScript, Java | TypeScript |
 | [State-Based Endorsement](asset-transfer-sbe) | This sample demonstrates how to override the chaincode-level endorsement policy to set endorsement policies at the key-level (data/asset level). | [Using State-based endorsement](https://github.com/hyperledger/fabric-samples/tree/main/asset-transfer-sbe) | Java, TypeScript | JavaScript |
 | [Secured agreement](asset-transfer-secured-agreement) | Smart contract that uses implicit private data collections, state-based endorsement, and organization-based ownership and access control to keep data private and securely transfer an asset with the consent of both the current owner and buyer. | [Secured asset transfer](https://hyperledger-fabric.readthedocs.io/en/latest/secured_asset_transfer/secured_private_asset_transfer_tutorial.html)  | Go | TypeScript |

asset-transfer-ledger-queries/chaincode-java/.gitattributes

@@ -0,0 +1,6 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# These are explicitly windows files and should use crlf
+*.bat           text eol=crlf
+

asset-transfer-ledger-queries/chaincode-java/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+.gradle/
+build/
+bin/

asset-transfer-ledger-queries/chaincode-java/Dockerfile

@@ -0,0 +1,31 @@
+# the first stage
+FROM gradle:9-jdk25 AS gradle_build
+
+# copy the build.gradle and src code to the container
+COPY src/ src/
+COPY build.gradle ./
+
+# Build and package our code
+RUN gradle --no-daemon build shadowJar -x checkstyleMain -x checkstyleTest
+
+
+# the second stage of our build just needs the compiled files
+FROM eclipse-temurin:25-jre
+ARG CC_SERVER_PORT=9999
+
+# Setup tini to work better handle signals
+ENV TINI_VERSION=v0.19.0
+ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /tini
+RUN chmod +x /tini
+
+RUN addgroup --system javauser && useradd -g javauser javauser
+
+# copy only the artifacts we need from the first stage and discard the rest
+COPY --chown=javauser:javauser --from=gradle_build /home/gradle/build/libs/chaincode.jar /chaincode.jar
+COPY --chown=javauser:javauser docker/docker-entrypoint.sh /docker-entrypoint.sh
+
+ENV PORT=$CC_SERVER_PORT
+EXPOSE $CC_SERVER_PORT
+
+USER javauser
+ENTRYPOINT [ "/tini", "--", "/docker-entrypoint.sh" ]

asset-transfer-ledger-queries/chaincode-java/build.gradle

@@ -0,0 +1,91 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+plugins {
+    id 'com.gradleup.shadow' version '9.2.2'
+    id 'application'
+    id 'checkstyle'
+    id 'jacoco'
+}
+
+group 'org.hyperledger.fabric.samples'
+version '1.0-SNAPSHOT'
+
+dependencies {
+    implementation 'org.hyperledger.fabric-chaincode-java:fabric-chaincode-shim:2.5.+'
+    implementation 'org.json:json:+'
+    implementation 'com.owlike:genson:1.6'
+    testImplementation platform('org.junit:junit-bom:5.14.0')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+    testImplementation 'org.assertj:assertj-core:3.27.6'
+    testImplementation 'org.mockito:mockito-core:5.20.0'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+repositories {
+    mavenCentral()
+    maven {
+        url 'https://jitpack.io'
+    }
+}
+
+compileJava {
+    options.release = 11
+}
+
+application {
+    mainClass = 'org.hyperledger.fabric.contract.ContractRouter'
+}
+
+checkstyle {
+    toolVersion '8.21'
+    configFile file("config/checkstyle/checkstyle.xml")
+}
+
+checkstyleMain {
+    source ='src/main/java'
+}
+
+checkstyleTest {
+    source ='src/test/java'
+}
+
+jacocoTestReport {
+    dependsOn test
+}
+
+jacocoTestCoverageVerification {
+    violationRules {
+        rule {
+            limit {
+                minimum = 0.9
+            }
+        }
+    }
+
+    finalizedBy jacocoTestReport
+}
+
+test {
+    useJUnitPlatform()
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+}
+
+shadowJar {
+    archiveBaseName = 'chaincode'
+    archiveVersion = ''
+    archiveClassifier = ''
+
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
+    mergeServiceFiles()
+
+    manifest {
+        attributes 'Main-Class': 'org.hyperledger.fabric.contract.ContractRouter'
+    }
+}
+
+check.dependsOn jacocoTestCoverageVerification
+installDist.dependsOn check

asset-transfer-ledger-queries/chaincode-java/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists