Java NoClassDefFoundError: org/apache/commons/lang3/StringUtils
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NoClassDefFoundError: org/apache/commons/lang3/StringUtils
提问by Rachita Nanda
I'm trying to run the sample project with thislibrary and I get the following error:
我正在尝试使用此库运行示例项目，但出现以下错误：
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/commons/lang3/StringUtils
at com.github.devnied.emvnfccard.enums.EmvCardScheme.<init>(EmvCardScheme.java:97)
at com.github.devnied.emvnfccard.enums.EmvCardScheme.<clinit>(EmvCardScheme.java:32)
at com.github.devnied.emvnfccard.parser.EmvParser.readWithAID(EmvParser.java:277)
at com.github.devnied.emvnfccard.parser.EmvParser.readEmvCard(EmvParser.java:120)
at com.github.devnied.emvpcsccard.Main.main(Main.java:64)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang3.StringUtils
at java.net.URLClassLoader.run(Unknown Source)
at java.net.URLClassLoader.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 5 more
I've added commons-lang-2.6.jar& commons-lang3-3.1-sources.jarin libsand classpath
我在库和类路径中添加了commons-lang-2.6.jar& commons-lang3-3.1-sources.jar
Main class:
主要类：
public static void main(final String[] args) throws CardException {
Main pcsc = new Main();
CardTerminal ct = pcsc.selectCardTerminal();
Card c = null;
if (ct != null) {
c = pcsc.establishConnection(ct);
CardChannel channel = c.getBasicChannel();
PcscProvider provider = new PcscProvider(channel);
EmvParser parser = new EmvParser(provider, false);
parser.readEmvCard();
c.disconnect(false);
}
}
I have referred to the following links:
我参考了以下链接：
采纳答案by azurefrog
I have added commons-lang-2.6.jar & commons-lang3-3.1-sources.jar...
我添加了 commons-lang-2.6.jar & commons-lang3-3.1-sources.jar ...
Here's your problem: commons-lang-2.6.jardoesn't contain the org.apache.commons.lang3package, since that's part of version 3, and commons-lang3-3.1-sources.jarcontains the source code, not the byte code.
这是您的问题： commons-lang-2.6.jar不包含org.apache.commons.lang3包，因为它是版本 3 的一部分，并且commons-lang3-3.1-sources.jar包含源代码，而不是字节码。
You need to include commons-lang3-3.1.jarinstead.
您需要改为包含commons-lang3-3.1.jar。
回答by ?ɑ??????
If you're using Maven, put this inside your pom.xmlfile:
如果您使用的是Maven，请将其放入您的pom.xml文件中：
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
Don't forget Update Project
不要忘记更新项目
Apache Commons Lang ? Dependency Information - Last version 3.8 (Published: 20 August 2018)
Apache Commons Lang ? 依赖信息 - 最新版本 3.8（发布时间：2018 年 8 月 20 日）
Apache Maven
阿帕奇Maven
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.8</version>
</dependency>
Gradle/Grails
摇篮/圣杯
compile 'org.apache.commons:commons-lang3:3.8'
Apache Buildr
阿帕奇构建器
'org.apache.commons:commons-lang3:jar:3.8'
Apache Ivy
阿帕奇常春藤
<dependency org="org.apache.commons" name="commons-lang3" rev="3.8">
<artifact name="commons-lang3" type="jar" />
</dependency>
Groovy Grape
时髦的葡萄
@Grapes(
@Grab(group='org.apache.commons', module='commons-lang3', version='3.8')
)
Scala SBT
斯卡拉 SBT
libraryDependencies += "org.apache.commons" % "commons-lang3" % "3.8
Leiningen
莱宁根
[org.apache.commons/commons-lang3 "3.8"]
Reference:
参考：
https://commons.apache.org/proper/commons-lang/dependency-info.html
https://commons.apache.org/proper/commons-lang/dependency-info.html
回答by Mohan Narayanaswamy
When everything else is correct, rarely jar file gets corrupted. Ensure you don't see error something like below while compiling
当其他一切都正确时，很少有 jar 文件被损坏。确保在编译时没有看到类似下面的错误
[ERROR] error reading
C:\Users\Mohan\.m2\repository\org\apache\commons\commons-lang3.7\commons-lang3-3.7.jar;
ZipFile invalid LOC header (bad signature)
回答by kiran
Yo adding the below and update maven pronject worked like a charm
哟添加以下内容并更新 maven 项目就像一个魅力
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
回答by Shell_Leko
I was having this issue in IJ version 2016 after updating it to 2018.3.4 and clicking "Generate sources and update folders for all projects" at Maven options tab the issue went away
在将其更新到 2018.3.4 并在 Maven 选项选项卡上单击“为所有项目生成源代码和更新文件夹”后，我在 IJ 版本 2016 中遇到了这个问题，问题消失了
回答by smita
Adding below worked for me
添加以下对我有用
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>3.6.1</version>
</dependency>
