classnotfound

问题 I want to use reflection in java, I want to do that third class will read the name of the class as String from console. Upon reading the name of the class, it will automatically and dynamically (!) generate that class and call its writeout method. If that class is not read from input, it will not be initialized. I wrote that codes but I am always taking to " java.lang.ClassNotFoundException ", and I don't know how I can fix it. Can anyone help me? class class3 { public Object dynamicsinif

问题 I am using the following code in a servlet of my app java.awt.Image awtImg = java.awt.Toolkit.getDefaultToolkit().createImage(str1); When I run the application and call the servlet I get the following error java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11.XToolkit java.lang.Class.forName0(Native Method) java.lang.Class.forName(Class.java:169) java.awt.Toolkit$2.run(Toolkit.java:834) java.security.AccessController.doPrivileged(Native Method) java.awt.Toolkit

问题 So I ran into a problem today while working on my Android program. I have a class that turns that an XML string into a Java object (third party) and it works fine in as a regular java project but on Android I get this weird error: 06-21 22:44:26.402: DEBUG/App(259): java.lang.ClassNotFoundException: com.package.mycode.Class in loader dalvik.system.PathClassLoader@4001b500 06-21 22:44:26.402: DEBUG/App(259): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) I hide my

问题 I am using servicemix 4.4.1 with maven 3.0.4. I am very new to servicemix/java world - my main knowledge is c# / php. I have added the below to one of my routes: <bean id="dataSource" class="org.springframework.jdbc.datasource.SimpleDriverDataSource"> <property name="driverClass" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://10.10.10.29/ServiceMix"/> <property name="username" value="somet"/> <property name="password" value="somet"/> </bean> If i then deploy the

问题 I have some problems about Gson import in my project if I dependency like this: compile 'com.google.code.gson:gson:2.8.1' The compile is OK,but when I run my app, it has bean crashed,such as enter image description here I try to dump the apk and analyze it, I found there is Gson in the dex,but runtime crash. but when I download the gson.jar and put it into libs then make the dependency like this: compile fileTree(dir: 'libs', include: ['*.jar']) it fully worked. and I don't know why ? so help

问题 I'm new to MVC and Codeigniter and am trying to get a class working. I'm running CodeIgniter 2.1.0 and Doctrine 2.2.1 When my code calls the submit() function, I get Class 'Myclass_model' not found , and references to the line that includes: $u = new Myclass_model(); (See edit note at the bottom, now getting Class 'Doctrine_Record' not found in the model where it is extended) In my controller is the following code: public function submit() { if ($this->_submit_validate() === FALSE) { $this-

问题 I've tried cleaning my project several times, restarting Eclipse, going to Build path -> Export, making sure Android private libraries is ticked, and I've tried parsing through XML and Java files to find the error myself. I have also tried researching here on StackOverflow but to no avail. I've also checked if I was calling things before the onCreate method. I fear my manifest XML file might be causing an issue but I don't see anything wrong with it. Also a little information about the

问题 I am using Selenium WebDriver 3.0.1 in a Maven based project. This code snippet fails (does not compile): Actions myActions = new Actions(myWebDriver); because the org.openqa.selenium.interactions.Actions class is missing from the selenium-api-3.0.1.jar downloaded from maven. This is the relevant portion of the pom.xml: <dependency> <groupId>org.seleniumhq.selenium</groupId> <artifactId>selenium-firefox-driver</artifactId> <version>3.0.1</version> </dependency> <dependency> <groupId>org

问题 I first start up my WebSphere Application Server 8.5.5.0 with no applications deployed to it, it starts up fine, text is below. Launching defaultServer (WebSphere Application Server 8.5.5.0/wlp-1.0.3.20130510-0831) on Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_51-b13 (en_US) [AUDIT ] CWWKE0001I: The server defaultServer has been launched. [INFO ] CWWKE0002I: The kernel started after 1.714 seconds [INFO ] CWWKF0007I: Feature update started. [AUDIT ] CWWKZ0058I: Monitoring dropins for

问题 I am running into problems when I try to run the jar file created in IntelliJ. I followed the steps laid out here: How to build jars from IntelliJ properly? and searched far and wide for other people with the same problem using IntelliJ, and found no solution. In the menu Project Structure>Artifacts section I have the package and main class name, and I have also tried specifying the 'Class path' bit using a relative and absolute path both to the source file and the .class file (which seems