No Such Method Error Java 6
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No Such Method Error Ljava/lang/string
what can cause it, and what should one do to fix it? java main nosuchmethoderror share|improve this question edited Mar 24 '13 at 1:23 community wiki 4 revs, 3 users 81%Stephen C Just guessing they're calling a function that doesn't exist, but the compiler is supposed to stop you if you were to do that. –eternalmatt Mar 23 '11 at 15:04 Wikification complete. –Tim Post♦ Mar 23 '11 at 15:07 @eternalmatt - This is a case that nosuchmethoderror runtime the compiler cannot deal with. See my answer for details. –Stephen C Oct 8 '14 at 6:09 add a comment| 7 Answers 7 active oldest votes up vote 28 down vote accepted When you use the java command to run a Java application from the command line, e.g., java some.AppName arg1 arg2 ... the command loads the class that you nominated, and then looks for the entry point method called main. More specifically, it is looking for a method that is declared as follows: package some; public class AppName { ... public static void main(String[] args) { // body of main method follows ... } } The specific requirements for the entry point method are: The method must be in the nominated class. The name of the method must be "main" with exactly that capitalization1. The method must be public. The method must be static 2. The method's return type must be void. The method must have exactly one argument and the type of that argument must be String[] 3. (The String[] argument is used to pass the arguments from the command line, and is required even if your application takes no command line arguments.) If any one of the above requirements is not satisfied, the java command will fail with the message: java.lang.NoSuchMethodError: main Exception in thread “main” If you encounter this error, check that you have a main method and that it satisfies all 6 of the requirements listed above. 1 - One really obscure varia
Method java.lang Class NoSuchMethodError java.lang.Object
Java.lang.nosuchmethoderror V
java.lang.Throwable java.lang.Error java.lang.LinkageError java.lang.IncompatibleClassChangeError java.lang.NoSuchMethodError All Implemented Interfaces: Serializable
Java Lang Nosuchmethoderror Init
public class NoSuchMethodError extends IncompatibleClassChangeError Thrown if an application tries to call a specified method http://stackoverflow.com/questions/5407250/causes-of-java-lang-nosuchmethoderror-main-exception-in-thread-main of a class (either static or instance), and that class no longer has a definition of that method. Normally, this error is caught by the compiler; this error can only https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodError.html occur at run time if the definition of a class has incompatibly changed. Since: JDK1.0 See Also:Serialized Form Constructor Summary Constructors Constructor and Description NoSuchMethodError() Constructs a NoSuchMethodError with no detail message. NoSuchMethodError(Strings) Constructs a NoSuchMethodError with the specified detail message. Method Summary Methods inherited from classjava.lang.Throwable addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString Methods inherited from classjava.lang.Object clone, equals, https://www.javacodegeeks.com/2012/08/java-exception-java-lang.html NoSuchMethodError About Ganesh Bhuddhan Java Exception: java lang NoSuchMethodError Posted by: Ganesh Bhuddhan in Core Java August 6th, 2012 If you have a look at the error message java.lang.NoSuchMethodError you may understand that the Java Virtual Machine is trying to indicate us that the method you invoked is not available in the class or in an interface.
You no such could have also seen this error thrown when executing a class that has no public static void main() method.To know the reason behind this read this post.When you try to invoke a method that is no longer available in a class then at the compile time itself you will be shown an error message "cannot find symbol". So no such method you may think how come this error is thrown when launching a program or an application.I have explained the fact behind this issue using the following programs.Let's have a class Nomethod and Pro1 as follows,Nomethod class:import java.util.*; class Nomethod{ public static void main(String args[]){ Pro1 s=new Pro1(); s.display(); } } Pro1 class:class Pro1{ public void display(){ System.out.println("I am inside display"); } } When you execute this program it will work fine without showing any errors.Now look at what happens when i change the class Pro1 as follows and compile this class alone.Example1:class Pro1 { } Example2:class Pro1{ public int void display(){ System.out.println("I am inside display"); return 1; // for example i have included a statement like this } } Now if you execute the class Nomethod without recompiling it then you will be embarrassed by this java.lang.NoSuchMethodError at run-time.1. If you change the class Pro1 as shown in Example1,then this exception will be thrown because there is no method display() available in that class.2. If you consider the Example2 this er