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Exception in thread “main” java.lang.NoClassDefFoundError: wrong name

由 孤人 提交于 2019-11-27 14:43:18
问题 My file directory: project/src/m2mcom/entities/AutomatedTelnetClient.java /web/Simple.java /org/apache/commons/net/telnet/TelnetClient.java The source code of the Simple.java: package m2mcom.web; import m2mcom.entities.AutomatedTelnetClient; import java.util.*; import java.io.*; public class Simple { public static void main(String [] args) { try { AutomatedTelnetClient telnet = new AutomatedTelnetClient(); String answer = telnet.request(); System.out.println(answer); } catch (Exception e) {

Adding Joda Time

由 …衆ロ難τιáo~ 提交于 2019-11-27 13:55:12
问题 I am building an app that uses time. I decided to use Joda time. I am trying to add joda time to my app. I have no experience with adding .jar files to the libs. I followed these steps(see bottom), or so I thought. My project is showing no errors, but when I run a simple test: DateTime test = new DateTime(); I get a force close and the following error: Could not find class 'org.joda.time.DateTime', referenced from method xxxx java.lang.NoClassDefFoundError: org.joda.time.DateTime These are

Android: NoClassDefFoundError android.os.AsyncTask

由 谁说我不能喝 提交于 2019-11-27 12:26:26
问题 Since a couple of weeks, I'm seeing more and more crashes of my app with the following exception Fatal Exception: java.lang.NoClassDefFoundError android.os.AsyncTask This code has run for month without any issue, and it seems now to fail on some devices (75% android 2.3.x and 25% android 4.0.3) It fails when I create a new instance of a class which extends AsyncTask. I create this class from the UI thread. How can that class be not found as it's defined within the SDK ? 回答1: Yes, looks like

javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/ConditionalTagSupport

由 こ雲淡風輕ζ 提交于 2019-11-27 12:08:37
问题 I am using sitemesh to decorate the pages. I am using a JSP page for this. The page worked fine until I used the <c:if> conditional tag. I have the jstl-impl-1.2.jar & sitemesh-3.0-alpha-1.jar files in the WEB-INF/lib folder. I have following tag library declarations in the jsp page: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %> <%@ taglib

java.lang.NoClassDefFoundError: android/graphics/drawable/Icon

由 六眼飞鱼酱① 提交于 2019-11-27 10:25:21
So far I got this error only for one user, who uses a rooted phone (SM-G900R7 Android 4.4.2). The error is like this: Fatal Exception: java.lang.NoClassDefFoundError: android/graphics/drawable/Icon at java.lang.Class.getDeclaredMethods(Class.java) at java.lang.Class.getDeclaredMethods(Class.java:656) at android.view.ViewDebug.getExportedPropertyMethods(ViewDebug.java:960) at android.view.ViewDebug.exportMethods(ViewDebug.java:1047) at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:997) at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:983) at android.view.ViewDebug.dumpView

Compiling and running with JavaFX 2.1

由 我只是一个虾纸丫 提交于 2019-11-27 08:26:20
I am trying a very simple use of JavaFX using a simple set of lines of code which I got from another stackoverflow page ( here ). But, the problem is clearly not with that code but with something more fundamental in the build and run process. Here is my code: import javafx.scene.media.Media; import javafx.scene.media.MediaPlayer; . . . Media medMsg = new Media("msg.mp3"); MediaPlayer medplMsg = new MediaPlayer(medMsg); medplMsg.play(); At first I couldn't get this to compile at all. Eventually I figured out that I needed to put -classpath c:\Program Files\Oracle\JavaFX 2.1 SDK\lib\rt\jfxrt.jar

Approach for fixing NoClassDefFoundError? [duplicate]

由 耗尽温柔 提交于 2019-11-27 07:45:26
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: NoClassDefFoundError - Eclipse and Android I'm seeing this question is getting asked a lot in many different contexts. Perhaps we can set some strategies for locating and fixing it? I'm noobish myself so all I can contribute are horror stories and questions, sorry... It seems this is thrown when a class is visible at compile time but not at run time... how can this happen? In my case I am developing an app that

Android: When do classes get unloaded by the system?

由 混江龙づ霸主 提交于 2019-11-27 07:44:48
问题 This is a very weird problem. My app that runs just fine but somehow if I leave my phone for an hour or two while my app is running, I get the following error when I come back to it later: java.lang.NoClassDefFoundError: yoga.database.Manager at yoga.YogaActivity.openDatabase(YogaActivity.java:294) at yoga.YogaActivity.initData(YogaActivity.java:275) at yoga.YogaActivity.onCreate(YogaActivity.java:102) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) at android

NoClassDefFoundError below SDK 21

由 可紊 提交于 2019-11-27 07:06:58
I just experienced an awkward bug in my App. On my Nexus 5/7, running android 5.0.1/5.0.2, everything works just fine. However if i try running the exact same code on a device with an earlier version (tested 4.4.4 and 4.3) I get the following error: 03-13 13:49:41.140 21714-21714/? E/dalvikvm﹕ Could not find class 'com.default.package.application.model.Appcomponent', referenced from method com.default.package.application.controller.DatabaseHandler.getScreenComponents 03-13 13:49:41.140 21714-21714/? E/dalvikvm﹕ Could not find class 'android.support.v7.app.ActionBarActivityDelegate$1',

Why NoClassDefFoundError caused by static field initialization failure?

由 可紊 提交于 2019-11-27 07:05:05
Here is a interesting java question. the following simple java program contains static field initialized by a method statically. Actually, I force the method which calculate the intiailize value to raise a NullPointException, When I access such a static field, a NoClassDefFoundError will raised. it seems the VM treat the Class is not complete. But when I access the Class, it still available; Does anyone knows why? class TestClass { public static TestClass instance = init(); public static TestClass init() { String a = null; a.charAt(0); //force a null point exception; return new TestClass(); }
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