Java.lang.class is a runtime representation of classes and interfaces.
Questions tagged [java.lang.class]
97 questions
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While attempting to set up a raspberry pi minecraft server, im getting an error message that states my Java Runtime version is too high
It reads: "Error: LinkageError occurred while loading main class net.minecraft.bundler.Main
java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the Java Runtime (class file version 61.0),…
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error occurs when an Activity is unable to start due to an InflateException
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.myapp/com.example.myapp.MainActivity}: android.view.InflateException: Binary XML file line #17: Binary XML file line #17: Error inflating class…
CoreGyan
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"System" could not be resolved even though imports are correct
When I compile my JSP page, it does not seem to work since it doesn't resolve the System class. I need to get the time in milliseconds so I can input it in the DB
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error…
Reverb God
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- 1
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JMX java.lang:,type=GarbageCollector interpretation
Have set up collection of java GC data points into an elastic cluster from jolokia/JMX of a Jboss server, but attempting to browse descriptions in the jolokia's jmx console doesn't tell much on how to interpret the data collected like what are unit…
Steffen Winther Sørensen
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Java error: java.lang.NoClassDefFoundError with Maven on VSCODE
Hello i'm currently learning java i'm taking a course and we're diving into Maven proyects. The thing is that i'm getting an error when i tried to run a simple "Hello World" and my teacher couldn't find a solution
This is the code
package bmt;
/**
…
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JavaFX java.lang.reflect.InvocationTargetException issue PROJECT SETUP ISSUE
Hello I am new in JavaFx, I'm trying to build a login/signup application, I think my code is correct and my big issue is a NULL statement or a project setup that I can't see to fix. I tried to follow most of the answers in similar questions but I…
Drive Knight
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Cannot instantiate interface
When I tried to run my project(no build errors)there was an exception:
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationListener :…
Alishetty Nihal
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- 4
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Class.forName + ExceptionInInitializerError + static initialization + weird Array init
I recently "inherited" a project and tried to get an instance of a service running locally. I encountered - and fixed - some problems with code similar to...
class A {
// ...
public void doSomething() {
// ...
Class foo =…
seventy2eleven
- 98
- 8
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How does Class Class actually represent other Classes and interfaces in java?
I've been trying to understand that how the Class Class actually works in java but everywhere I look all it says is that its references represent the Classes and Interfaces in a running java application but nowhere I've managed to find that how…
ansme
- 413
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- 11
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Mocking java.lang.Class getDeclaredMethod(String name, ...Class args) with Mockito not working
I am trying to mock the getDeclaredMethod on a java .class object of a certain defined java type:
AccessRulesMethods accessRulesMock = mock(AccessRulesMethods.class);
Method mockMethod =…
Saverio Mirko Viola
- 85
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Not sure why code returning an Illegal exception related with input data on java 8
I have written the code below.
I made a database, with type "Integer" to accept number values, string to accept "Letter" values and "Date" to accept Date values.
Once i run it, i get the above captioned error on the JOptionPane dialog box, and after…
Philip Mugendi
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Unable to execute a java code in eclipse ide
Sample Code:
package pack.java;
import java.util.*;
public class Bye {
public static void main(String args[]) {
int a=3,b=5;
System.out.println("The sum is:"+(a+b));
}
}
I am unable to execute any code in the eclipse ide. I am…
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How to dump or write modified java.lang.Class using reflection to file?
I'm trying to update the method annotation value in a java file at runtime. I'm able to update the value and finally, I got the changes. But don't know how to write the updated source code to file. I'm assuming all changes are present in forName. So…
kumar
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java.lang.ClassNotFoundException while executing DB connection statements
I have set of DB connection statements in my java file which takes the driver name, url, username and password from my property file and then try to make a connection. But I am keep getting error exactly in this try block . My code is
try {
…
Sankar
- 11
- 2
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Netbeans IDE runtime exception
Good day,
I am self-taught with the help of a few free online courses in Java and very new to everything.
I'm struggling to run a code that's meant to send emails with a set content using my PC as localhost. using Netbeans IDE, I keep getting the…
