Jni Error Has Occurred Please Check Your Installation and Try Again No Suh Class

A JNI mistake has occurred, please check your installation and attempt again in Eclipse x86 Windows 8.1

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A JNI error has occurred, please cheque your installation and try again in Eclipse x86 Windows viii.1

                              public class LoginCumReg implements ActionListener,KeyListener {         private JFrame grade;         private JTextField txtunm;         private JTextField txtnm;         private JTextField txteml;         private JButton cmdcreate;         individual JPasswordField txtpass;         private JPasswordField txtpassreg;         private JButton cmdok;         private JLabel lblunm;         private JLabel lblpass;         private JLabel lbleml;         private JLabel lblpassreg;         private JLabel lblnm;         private JPanel panel_1;     public LoginCumReg() {         // construct components         grade = new JFrame("Sign Up");         form.getContentPane().setFont(                 new Font("Plantagenet Cherokee", Font.BOLD, xviii));         txtunm = new JTextField(5);         txtunm.addKeyListener(this);         txtunm.setBounds(637, 55, 100, 25);         txtnm = new JTextField(5);         txtnm.setBounds(637, 228, 100, 25);         txteml = new JTextField(5);         txteml.setBounds(637, 264, 100, 25);         cmdcreate = new JButton("Create Business relationship");         cmdcreate.setBounds(527, 350, 188, 25);         txtpass = new JPasswordField(v);         txtpass.setBounds(637, 91, 100, 25);         txtpassreg = new JPasswordField(5);         txtpassreg.setBounds(637, 300, 100, 25);         cmdok = new JButton("OK");         cmdok.setBounds(527, 139, 100, 25);         lblunm = new JLabel("UserName");         lblunm.setBounds(527, 55, 73, 25);         lblpass = new JLabel("Password");         lblpass.setBounds(527, 91, 100, 25);         lbleml = new JLabel("Electronic mail ID");         lbleml.setBounds(527, 264, 100, 25);         lblpassreg = new JLabel("Password");         lblpassreg.setBounds(527, 300, 100, 25);         lblnm = new JLabel("Total Name");         lblnm.setBounds(527, 228, 100, 25);          // form.setResizable(false);          // accommodate size and set layout         grade.setPreferredSize(new Dimension(800, 450));          form.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);         form.getContentPane().setLayout(nil);          // add components         form.getContentPane().add(txtunm);         course.getContentPane().add(txtnm);         form.getContentPane().add(txteml);         form.getContentPane().add(cmdcreate);         course.getContentPane().add(txtpass);         course.getContentPane().add(txtpassreg);         form.getContentPane().add(cmdok);         class.getContentPane().add(lblunm);         form.getContentPane().add together(lblpass);         form.getContentPane().add(lbleml);         form.getContentPane().add together(lblpassreg);         form.getContentPane().add together(lblnm);          cmdcreate.setActionCommand("Create Account");         cmdcreate.addActionListener(this);         cmdok.setActionCommand("Login");          JPanel panel = new JPanel();         panel.setBounds(502, 29, 254, 154);         panel.setFont(new Font("Palatino Linotype", Font.PLAIN, 14));         panel.setBorder(new TitledBorder(new EtchedBorder(EtchedBorder.RAISED,                 null, null), "LOGIN", TitledBorder.LEADING, TitledBorder.TOP,                 null, naught));         panel.setBackground(SystemColor.controlHighlight);         grade.getContentPane().add together(panel);          panel_1 = new JPanel();         panel_1.setBounds(500, 204, 254, 186);         panel_1.setFont(new Font("Palatino Linotype", Font.Plain, 14));         panel_1.setBorder(new TitledBorder(new EtchedBorder(                 EtchedBorder.RAISED, null, nada), "SIGN UP",                 TitledBorder.LEADING, TitledBorder.Pinnacle, zilch, null));         panel_1.setBackground(SystemColor.controlHighlight);         form.getContentPane().add(panel_1);          JLabel lblNewLabel = new JLabel("New characterization");         lblNewLabel.setBounds(91, 139, 286, 101);         lblNewLabel.setIcon(new ImageIcon(                 "C:\\Users\\JAsh\\Desktop\\Projects\\JAsh.png"));         class.getContentPane().add(lblNewLabel);          JPanel panel_2 = new JPanel();         panel_2.setBounds(77, 118, 315, 145);         panel_2.setBorder(new EtchedBorder(EtchedBorder.RAISED,                 SystemColor.activeCaptionBorder, SystemColor.card));         panel_2.setBackground(SystemColor.controlHighlight);         form.getContentPane().add(panel_2);         cmdok.addActionListener(this);          class.setResizable(simulated);         form.pack();         grade.setVisible(true);         System.out.println("const..");     }      public static void main(String[] args) {         new LoginCumReg();     }      @Override     public void actionPerformed(ActionEvent ae) {         // TODO Machine-generated method stub          if (ae.getActionCommand().equals("Create Account")) {             new Registration(txtnm.getText(), txteml.getText(), new String(                     txtpassreg.getPassword()));             course.setVisible(false);         }          if (ae.getActionCommand().equals("Login")) {             try {                 if (txtunm.getText().equalsIgnoreCase("admin")                         && new String(txtpass.getPassword()).equals("admin")) {                     grade.setVisible(false);                     new Admin();                 } else {                     DataBase db = new DataBase();                     db.connect();                     String sql = "SELECT * FROM LOGIN WHERE USERNAME='"                             + txtunm.getText() + "'";                     ResultSet rs = db.getDDL(sql);                     boolean found = fake;                     while (rs.side by side()) {                         if (rs.getString("Password").equals(                                 new String(txtpass.getPassword()))) {                             institute = true;                             form.setVisible(false);                             Cord proper noun = rs.getString("FullName");                             Session.startSession(txtunm.getText(), name);                             new FacultyWelcome();                         }                     }                     if (!found)                         JOptionPane.showMessageDialog(new JFrame(),                                 "Invalid Credentials");                     db.shut();                 }             } catch (Exception e) {             }         }      }      @Override     public void keyPressed(KeyEvent arg0) {         // TODO Automobile-generated method stub     }      @Override     public void keyReleased(KeyEvent arg0) {         // TODO Auto-generated method stub      }      @Override     public void keyTyped(KeyEvent arg0) {         // TODO Auto-generated method stub     //  JOptionPane.showMessageDialog(new JFrame(), arg0.getKeyChar()+"-"+arg0.getKeyCode());      } }

The above code works perfectly on my friend's laptop and throws this error on my laptop. I have running the lawmaking on Eclipse Juno using Java vii. I accept too tested and run a lot java programs on my laptop all works well. This is the only programme which gives such an error. This is my final year project and I demand information technology to piece of work on my laptop, I will be greatful to anyone who helps

This question is tagged with java mysql eclipse java-native-interface

~ Asked on 2014-03-13 fourteen:09:47

35 Answers

Short answer: Right-click on the class that contains the principal method. Click on "Run As". Click on "Coffee Application". The keyboard shortcut is: Shift+Alt+Ten J (while belongings Shift and Alt, press X; then release Shift and Alt and press J).

Long respond: To exist honest, I am not 100% sure why this problem happens. It might exist considering of using a different jdk. I faced the same fault. The solution was easier than I imagined. I was used to running my lawmaking using Ctrl + F11. But when I ran it as a java application (the way I described in "short answer"), the problem was resolved. I am not certain if it solves other people's issues equally well, just it is worthwhile to try. :)

~ Answered on 2015-07-twenty eighteen:28:16

I accept been having this trouble for a while, only now I have figured it out.

It turns out that Java JDK 12 take both the JRE and the JDK within the bin binder of the Java 12 JDK. (I have always believed that JRE and JDK are different awarding, only it turns out things take changed)

My problem was that I had Java JDK 12 installed on my figurer

At the same time, I had Java viii (JRE) Installed on my calculator.

Then my estimator is getting confused.

With my command prompt environment setup to run Java and Javac commands:

I typed the follow commands:

              java -version

// this gave me Coffee 8

Afterwards that, I typed:

              javac -version

// this gave me Java 12

In other words, my program is getting compiled with Java 12 and I am trying to run with Coffee 8.

To solve the trouble, I uninstalled Java eight JRE from my reckoner.

Went dorsum to control prompt to check if "java -version" and "javac -version" is returning the same version number, and yep, it is returning Java 12.

Tried recompiling my program again, and running information technology. It Worked!!

It worked! Eureka!!

~ Answered on 2019-09-04 22:35:05

Running the jar from control line by:

              C:\folder\where\jar\stored>java -jar JarName.jar

I got information which fabricated the problem clearer:

main/Main has been compiled by a more recent version of the Coffee Runtime

enter image description here

In this instance jar was compiled with version newer than jre supports.

~ Answered on 2018-xi-29 10:04:05

Error: A JNI error has occurred, please cheque your installation and try again in Eclipse

Solution: Cheque your packet proper name as information technology may be colliding with the package proper name in coffee. Simply change the package name to resolve your issue. :)

~ Answered on 2017-08-16 12:01:56

I had similar issues when using 'java' at the beginning of the package name, e.g. java.jem.pc

Check your console output, I was receiving:

              Exception in thread "chief" java.lang.SecurityException: Prohibited package name: java.jem.pc

~ Answered on 2016-10-xix 23:02:59

In my case the effect was caused by the JDK version. To solve this I propose to get into your pom file and check the <jdk.version>one.7</jdk.version>.

Subsequently check java version in your cmd(windows) or terminal ( OSX or LINUX ) by typing : coffee -version.

Compare the version shown in the final\command prompt with what yous take in your pom file. Make certain they are the aforementioned. Then run your project over again.

~ Answered on 2017-10-thirteen 23:01:27

I solved it changing my 'Compiler compliance level'. In Eclipse:

Window -> Preferences -> Java -> Compiler

~ Answered on 2019-08-09 16:52:18

Hullo I faced similar problem with a project, in IntelliJ with Maven dependencies.

I solved information technology changing the dependencies scope from provided to compile.

IntelliJ:

File > project structure > Modules > Dependencies > scope (provide to compile)

~ Answered on 2018-08-22 xiv:41:55

You tin bank check the console commencement to encounter the bodily error message then keep by looking for answers for that fault.

My console shows the fault NoClassDefFound for the form jcommander. Your error will probably be different from mine. The crusade of my fault is that the form jcommander is not in my M2 repository, so I but have to add that dependency in my pom.xml. You tin can bank check if all the form dependencies are all alleged and added in your current config and project build.

NoClassDefFoundError

~ Answered on 2016-xi-23 09:11:34

It can happen if the JDK version is different.

try this with maven:

              <properties>     <jdk.version>1.eight</jdk.version> </properties>

under build->plugins:

              <plugin>      <groupId>org.apache.maven.plugins</groupId>     <artifactId>maven-compiler-plugin</artifactId>     <version>2.3.2</version>     <configuration>         <source>${jdk.version}</source>         <target>${jdk.version}</target>     </configuration>  </plugin>

~ Answered on 2017-06-12 15:xiii:47

I also faced the same upshot. Past looking at the panel that'south saying

java.lang.SecurityException issue.

the Solution is:

Check your package name of your project.

Hope your issue will be resolved. If not, then please impress your console trace for tracking the root crusade.

~ Answered on 2017-01-16 23:48:02

I take institute that calculation these lines of code to the pom.xml file of the maven projection solves similar problems for me:-

              <build>     <plugins>         <plugin>             <groupId>org.apache.maven.plugins</groupId>             <artifactId>maven-jar-plugin</artifactId>             <configuration>                 <archive>                     <manifest>                         <mainClass>com.packagename.MainClassName</mainClass>                     </manifest>                 </archive>             </configuration>         </plugin>          <plugin>             <groupId>org.apache.maven.plugins</groupId>             <artifactId>maven-shade-plugin</artifactId>             <version>ii.3</version>             <configuration>                 <createDependencyReducedPom>false</createDependencyReducedPom>             </configuration>             <executions>                 <execution>                     <stage>package</stage>                     <goals>                         <goal>shade</goal>                     </goals>                 </execution>             </executions>         </plugin>     </plugins> </build>

~ Answered on 2018-09-13 05:58:00

I experienced the same issue, even so in my case information technology was due to the Configuration settings in IntelliJ Thought.

Even though the project SDK (File -> Project Structure) was fix to Java 11, the JRE in the Run/Debug Configurations (Run -> Edit Configurations) was gear up to Coffee 8. After changing that to Java 11, it worked similar a charm.

~ Answered on 2019-07-03 09:17:02

POSSIBLE SOLUTION If NONE of these solutions worked for you so try this... I finally got mine working by deleting the 2 folders ".metadata" & ".recommenders" in the workspace folder. You can find your workspace folder path by clicking on "File">"Switch Workspace">"Other" in the Eclipse awarding'south toolbar.

Now I am a complete noob crying my way through an SE degree at San Jose State University. So I am just sharing what worked for me without knowing much cognition of why exactly. I do not know what harm or headaches, or even if both aforementioned folders needed to be deleted. But in the finish, it worked for me and information technology seems the application just recreates fresh versions of those folders anyways.

~ Answered on 2018-02-28 04:55:06

Check your console. It says java.lang.SecurityException event. Change your 'package proper noun'. I changed my package proper name from 'java.assessment' to 'assesment' and it worked for me. If somebody knows the root cause , let me know please.

~ Answered on 2017-07-03 07:07:41

I was facing the same issue and in my instance compiler compliance level was selected equally fourteen in my eclipse settings. In lodge to fix it, I changed it to the version of JDK on my machine i.e ane.8 and recompiled the project.

enter image description here

~ Answered on 2021-02-xx 07:47:09

I hope this helps somebody else. I was suffering with this while working on a project a few years ago and then a job in a newer project started declining a few days ago. I establish this post and was trying to call up what I had modified in my project and then I remembered that I had changed my maven pom and removed the entry for maven-jar-plugin. When yous build a jar whose purpose is to be executable, you lot need to include this then that sure entries get written into the manifest. I opened the old projection, copied that entry (with some modifications for project name) and it worked.

~ Answered on 2017-10-19 xix:36:01

Faced the same upshot in Netbeans eight.0.2. Make clean and Build Project solved this trouble.

~ Answered on 2018-06-01 09:28:11

The programs which has been written on ane version of jdk won't back up the JNI platform of another version of jdk. If in case we are using jdk10 and jdk8,eclipse configured for jdk10 and code written on jdk10. Now, i don't want to utilise jdk10 and started using jdk8 as jvm and tried to run the code which is written on jdk10, and then eclipse will through error of JNI. Then, to come up out of this error, please add the electric current JVM path to eclipse.ini file, after this copy the written code to clipboard and delete the projection in eclipse and create new projection and bank check in copied code and run.

~ Answered on 2018-06-27 08:34:43

In that location was no information in my Panel so that sent me searching for additional solutions and found these - unique to the solutions presented here. I encountered this with Eclipse Oxygen trying to run an old Ant build on a project.

Crusade i I had configured Eclipse to utilise an external Ant install which was version 1.ten.2 which patently had classes in information technology that were compiled with JDK ix. In Eclipse I got the JNI error described higher up (running the Ant build at the command line gave me the reknowned 'unsupported major.minor version' error - the Java I was using on the system was JDK 8).

The solution was to rollback to the embedded Eclipse version of Ant being 1.ten.1. I verified this every bit the correct solution past downloading Ant ane.10.1 separately and reconfiguring Eclipse to use the new ane.10.1 externally and it still worked.

Crusade 2 This tin can also happen when you have the Ant Runtime settings configured incorrectly in Eclipse'south Preferences. Depending on the version of Ant y'all're running you lot will need to add the tools.jar from the advisable JDK to the classpath used for the Ant Runtime (Home Entries). More specifically, without a proper configuration, Eclipse volition mutter when launching an Emmet target that the JRE version is less than a particular required version.

Substantially, 'proper configuration' ways aligning each of the configuration items in Eclipse for running Emmet so that they all work together. This involves the Ant Runtime Home entry (must signal to an Ant version that is compatible with your chosen JDK -- you tin't run Emmet with JDK 8 when it was compiled confronting JDK nine); specifying the tools.jar that belongs to the JDK yous desire to run Ant with in the Ant Runtime settings; and lastly setting the JRE environs of your build script to the JDK you want to run Ant with in the External Tools Configuration. All iii of these settings need to agree to avoid the error described above. You'll likewise demand to consider the attributes used in your javac tag to ensure the JDK yous're using is capable of executing as you've directed (i.e. JDK 7 tin't compile lawmaking using source and target version eight).

Moreover If you're actually simply trying to run an Ant build script to compile code to an older JDK (e.g. less than 8 for Oxygen), this article helped gain admission to run Ant against an older JDK. There are Ant plugin replacements for a scattering of versions of Eclipse, the instructions are brief and getting the correct plugin version for your particular Eclipse is important.

Or more simply you can use this very adept solution to do your legacy compile which doesn't crave replacing your Eclipse plugin but instead changing the javac tag in your build script (while using the latest JDK).

~ Answered on 2018-03-27 19:20:32

If the problem occurs while lanching an Ant, check your ANT HOME: information technology must point to the same eclipse folder you are running.

Information technology happened to me while I reinstalled a new eclipse version and deleted previouis eclipse fodler while keeping the previous ant abode: ant merely did non find any java library.

This in this example the reason is non a bad JDK version.

~ Answered on 2018-09-26 xiii:59:26

My consequence came from trying to disable the Maven nature from my project so deleting the pom.xml file. This is bad, very bad, don't do this. If you practice, change information technology back to a Maven project and hopefully you tin can either restore your old pom.xml file or create a new ane. As soon as I did that, it worked again.

EDIT: I recently ran across this trouble again and this time it was because I had duplicate libraries in my classpath. The i Maven added (which started with /M2_REPO/.... and then one I had added (which I should not have done). Fifty-fifty though Eclipse was reporting that it could not find the form, the bodily problem was that I had given it two libraries with the same class and it didn't know which one to use. One time I removed the second reference, it worked.

~ Answered on 2018-03-23 19:11:59

I have been running into the same mistake when I add together the following maven dependency in my project:

              <artifactId>aws-encryption-sdk-coffee</artifactId>

The error came up only when I ran the shade jar file produced past maven-shade-plugin. I was able to overcome the fault by using the jar produced by maven-assembly-plugin.

~ Answered on 2018-04-12 16:30:ten

I take faced the aforementioned issue due to packaged name was "Java" later rename package proper name it was non throwing an error.

~ Answered on 2019-01-16 06:59:23

In my instance, Eclipse was giving me this fault just I was getting classnotfoundexception on javax.servlet.http.HttpServletin the logs.

In my case, I was trying to outset a spring boot app with exclude module: 'spring-boot-starter-tomcat' in my build.gradle (since I'm deploying on Wildfly).

The solution was to comment this exclude out. The eclipse JNI error was very misleading and I would suggest fixing this.

~ Answered on 2019-07-12 20:05:52

You can try: right click on the project and and so click make clean. After this run the project.

It works for me.

~ Answered on 2018-06-24 17:32:28

had the same event. I had imported a newer version of json library (deleted the erstwhile one - just not removed it from the build path). Resolved it by removing the reference to the old one from the build path

~ Answered on 2019-07-19 08:55:16

When we get this error while running our java application, cheque if nosotros accept some form proper noun or bundle names starting with "java.", if then change the package proper noun. This is happening because your package name is colliding with java organization file names.

~ Answered on 2020-10-21 01:42:58

The accustomed reply did not resolve the issue, hence posting what worked for me.

Mistake/Result: While trying to run my application as a Java application or equally a Spring boot application, I am getting beneath error

A JNI mistake has occurred, please check your installation and endeavour again. A Coffee exception has occured.

too as getting this error on panel Exception in thread "main" java.lang.UnsupportedClassVersionError: com/instance/demo/IocApplication has been compiled past a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

What is the Root cause?

The reason for this fault is that

the Code is getting compiled on a higher version, in my case, information technology is version 11.. and
the code is getting executed on a lower version, in my case it is version 8.
ie: Java(JDK) compiled lawmaking on 11 , where as JRE version is 8.

Where did I configure JDK eleven and JRE 8 ?

I am using SpringToolSuite (STS). When I created the project, the JRE Organization library in the build path, which got added is the default JRE library version of 8 (1.8) But When I go to Project -> properties -> Java Compiler -> Compiler Compliance Level, information technology is by default having a selected version of 11

Solution:

Project -> properties -> Java Compiler -> Compiler Compliance Level

Set up the Compiler Compliance Level to 1.8 That'southward it. Now yous are compiling your code in 1.eight and executing the compiled lawmaking with a JRE 1.8.

~ Answered on 2021-01-31 11:17:xvi

All is not piece of work for me just Once I delete the ".metadata" & ".recommenders" of workspace and also delete the "bin" and "setting" folder and then later I re-import the same projection then It worked for me.

~ Answered on 2018-05-07 09:50:43

edit the ".classpath" and include below tag

<classpathentry kind="con" path="org.testng.TESTNG_CONTAINER"/>

this could solve your trouble.

~ Answered on 2017-08-05 05:54:22

I think this happen considering the name of your class is the aforementioned name of another class in the JDK . Help eclipse to decide which one you lot are trying to run by selecting the package your class is in . Become to run configuration select the project and the chief course.

When you press the search button to select the master class, y'all will discover options that have the same proper noun merely dissimilar package, select your form.

~ Answered on 2018-02-02 07:44:09

I faced a like problem and than got the solution in the parcel proper name. I kept the package proper name as java.basics. In the console I got a hint for that every bit it clearly said Prohibited package name. And then I changed package name and it worked.

~ Answered on 2016-04-09 20:20:xi

Using gradle the following also worked for me:

Package Explorer -> Right Click project -> Gradle -> Refresh Gradle Project

~ Answered on 2019-09-xxx 12:37:43

In Netbeans 8.0.two:

Right click on your packet.
Select "Backdrop".
Go to "Run" option.
Select master class by browsing your class name.
Click the "Ok" push.

~ Answered on 2018-06-09 06:29:12

Jni Error Has Occurred Please Check Your Installation and Try Again No Suh Class

A JNI mistake has occurred, please check your installation and attempt again in Eclipse x86 Windows 8.1

35 Answers

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