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update to v9.6.30
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‎LICENSE.md‎

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This folder contains code samples ("Sample Code") for use with Dynamsoft Barcode Reader, a commercial software development kit licensed by Dynamsoft. The Sample Code may be modified and included in your end user software under the terms of the Dynamsoft Software License Agreement   https://www.dynamsoft.com/barcode-reader/license-agreement/ ("Commercial License"). Except as expressly stated in the Commercial License, no other rights are granted in the Sample Code. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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Copyright © 2003–2022 Dynamsoft. All rights reserved.
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Copyright © 2003–2023 Dynamsoft. All rights reserved.

‎README.md‎

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| [`SpeedFirstSettings`](samples/Performance/SpeedFirstSettings) | This is a Java sample that shows how to configure Dynamsoft Barcode Reader to read barcodes as fast as possible. The downside is that read-rate and accuracy might be affected. |
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| [`ReadRateFirstSettings`](samples/Performance/ReadRateFirstSettings) | This is a Java sample that shows how to configure Dynamsoft Barcode Reader to read as many barcodes as possible at one time. The downside is that speed and accuracy might be affected. It is recommended to apply these configurations when decoding multiple barcodes from a single image. |
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| [`AccuracyFirstSettings`](samples/Performance/AccuracyFirstSettings)` | This is a Java sample that shows how to configure Dynamsoft Barcode Reader to read barcodes as accurately as possible. The downside is that speed and read-rate might be affected. It is recommended to apply these configurations when misreading is unbearable. |
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| [`DecodeWithConcurrentInstance`](samples/DecodeWithConcurrentInstance)` | This sample demonstrates how to decode barcodes in concurrent instance mode. |
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## License
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The library requires a license to work, you use the API initLicense to initialize license key and activate the SDK.
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These samples use a free public trial license which require network connection to function. You can request a 30-day free trial license key from <a href="https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&utm_source=samples&package=java" target="_blank">Customer Portal</a> which works offline.
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These samples use a free public trial license which require network connection to function. You can request a 30-day free trial license key from <a href="https://www.dynamsoft.com/customer/license/trialLicense?architecture=dcv&product=dbr&utm_source=samples&package=java" target="_blank">Customer Portal</a> which works offline.
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To run sample `DecodeWithConcurrentInstance`, please contact us at https://www.dynamsoft.com/company/contact/ to get a concurrent instance license first.
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For more information, please refer to https://www.dynamsoft.com/license-server/docs/about/licensefaq.html.
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## Contact Us
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‎samples/DecodeWithConcurrentInstance/.gitignore‎

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HELP.md
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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### STS ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### IntelliJ IDEA ###
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.idea
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*.iws
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*.iml
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*.ipr
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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‎samples/DecodeWithConcurrentInstance/.mvn/wrapper/maven-wrapper.jar‎

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‎samples/DecodeWithConcurrentInstance/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.3.1.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.dynamsoft</groupId>
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<artifactId>concurrentInstanceTest</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>concurrentInstanceTest</name>
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<description>How to make concurrentInstanceLicense work? Let&apos;s have a try.</description>
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<properties>
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<java.version>11</java.version>
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<skipTests>true</skipTests>
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</properties>
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<repositories>
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<repository>
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<id>dbr</id>
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<url>https://download2.dynamsoft.com/maven/dbr/jar</url>
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</repository>
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</repositories>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>com.dynamsoft</groupId>
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<artifactId>dbr</artifactId>
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<version>9.6.30</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎samples/DecodeWithConcurrentInstance/src/main/java/com/dynamsoft/concurrentInstanceTest/ConcurrentInstanceTestApplication.java‎

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package com.dynamsoft.concurrentInstanceTest;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class ConcurrentInstanceTestApplication {
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public static void main(String[] args) {
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SpringApplication.run(ConcurrentInstanceTestApplication.class, args);
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}
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}

‎samples/DecodeWithConcurrentInstance/src/main/java/com/dynamsoft/concurrentInstanceTest/controller/DecodeController.java‎

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package com.dynamsoft.concurrentInstanceTest.controller;
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import com.dynamsoft.concurrentInstanceTest.zzUtil;
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import com.dynamsoft.concurrentInstanceTest.service.DecodeService;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.multipart.MultipartFile;
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import javax.annotation.Resource;
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@RestController
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@RequestMapping("/decode")
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public class DecodeController {
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@Resource
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DecodeService decodeService;
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@PostMapping(consumes = {"multipart/form-data"})
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String decode(@RequestParam("image")MultipartFile mpImage) throws Exception {
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var bytesImage = mpImage.getBytes();
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var results = decodeService.decode(bytesImage);
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return zzUtil.jsonMapper.writeValueAsString(results);
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}
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}

‎samples/DecodeWithConcurrentInstance/src/main/java/com/dynamsoft/concurrentInstanceTest/service/DecodeService.java‎

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package com.dynamsoft.concurrentInstanceTest.service;
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import com.dynamsoft.concurrentInstanceTest.zz3rdPart.DynamsoftBarcodeWrapper;
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import com.dynamsoft.dbr.TextResult;
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import org.springframework.stereotype.Service;
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@Service("decodeService")
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public class DecodeService {
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public TextResult[] decode(byte[] bytes) throws Exception {
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return DynamsoftBarcodeWrapper.decode(bytes);
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}
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}

‎samples/DecodeWithConcurrentInstance/src/main/java/com/dynamsoft/concurrentInstanceTest/zz3rdPart/DynamsoftBarcodeWrapper.java‎

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package com.dynamsoft.concurrentInstanceTest.zz3rdPart;
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import com.dynamsoft.dbr.BarcodeReader;
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import com.dynamsoft.dbr.TextResult;
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import java.io.*;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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import java.security.DigestInputStream;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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public class DynamsoftBarcodeWrapper {
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public static Exception initException = null;
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// For the sake of generality, spring's dependency injection mechanism is not used.
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static {
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// Contact us at https://www.dynamsoft.com/company/contact/ to get a concurrent instance license
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String license = "YOUR-LICENSE-KEY";
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int countForThisDevice = 1;
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int countForThisProcess = 1;
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try {
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BarcodeReader.setMaxConcurrentInstanceCount(countForThisDevice, countForThisProcess);
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BarcodeReader.initLicense(license);
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} catch (Exception ex) {
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ex.printStackTrace();
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initException = ex;
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}
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}
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public static TextResult[] decode(byte[] bytes) throws Exception {
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if(null != initException){ throw initException; }
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var reader = BarcodeReader.getInstance();
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if(reader == null)
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{
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try {
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BarcodeReader.initLicense("YOUR-LICENSE-KEY");
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} catch (Exception ex) {
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ex.printStackTrace();
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throw ex;
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}
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reader = BarcodeReader.getInstance();
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if(reader == null)
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{
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throw new Exception("Get Instance Failed.");
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}
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}
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var results = reader.decodeFileInMemory(bytes, "");
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reader.recycle();
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return results;
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}
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}

‎samples/DecodeWithConcurrentInstance/src/main/java/com/dynamsoft/concurrentInstanceTest/zzUtil.java‎

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package com.dynamsoft.concurrentInstanceTest;
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import com.fasterxml.jackson.databind.ObjectMapper;
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public class zzUtil {
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public static final ObjectMapper jsonMapper = new ObjectMapper();
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}

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