我将一个java swing项目导入到netbeans 6.9中,当我试图清理和构建该项目时,显示了一条消息,但我无法运行该应用程序,尽管它已编译,请帮助。
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warning: [options] bootstrap class path not set in conjunction with -source 1.6
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use un
我无法从安卓工作室的市场上安装插件AppDynamics Android Agent Installer。我在异常堆栈跟踪下面。
java.lang.NoClassDefFoundError: com/android/tools/idea/gradle/parser/GradleBuildFile
at com.appdynamics.androidstudioplugin.installer.BuildGradleFinder.findBuildGradle(BuildGradleFinder.java:19)
at com.appdynamics.androidstudio
我需要一些关于如何使用ojdbc8 (我尝试过使用ojdbc6,ojdbc7也从未工作过)作为OSGi Bundle部署的一些线索,我可以使用Class.load()加载类,但是在运行时会得到以下错误:
java.net.MalformedURLException: unknown protocol: bundle
at java.net.URL.<init>(URL.java:421)
at java.net.URL.<init>(URL.java:310)
at java.net.URL.<init>(URL.java:333)
我知道这个问题很常见,所以我一直在网上疯狂地寻找解决方案,但都无济于事。我只是想从程序JAR中加载一个包含一些文本的文件。以下是我尝试阅读它的内容:
String text = "";
int read, N = 1024 * 1024;
char[] buffer = new char[N];
try {
InputStream is = this.getClass().getClassLoader().getResourceAsStream(
JavaVM WARNING: JAWT_GetAWT must be called after loading a JVM
Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: Can't load JAWT
at com.sun.jna.Native.getWindowHandle0(Native Method)
at com.sun.jna.Native$AWT.getComponentID(Native.java:1879)
at com.sun.jn
当我尝试启动Eclipse时,我得到了这个错误:
java.lang.UnsupportedClassVersionError: org/openqa/selenium/WebDriver : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(C
我正在尝试使用jBloomberg来获取股票报价。我得到了下面的异常。
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/assylias/jbloomberg/BloombergSession : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader
我的堆栈跟踪:
[java] 23 May 11 15:21:08, ERROR Failed to start new browser session, shutdown browser and clear all session data
[java] java.lang.IllegalArgumentException: Resource not found: /core
[java] at org.openqa.selenium.server.browserlaunchers.ResourceExtractor.extractResourcePath(ResourceEx
我在用爪哇制造太空入侵者。我试图让激光工作,但每当我移除激光,定时器(代码在里面)就会停止。我不明白这个错误。以下是错误:
Exception in thread "AWT-EventQueue-0" java.util.ConcurrentModificationException
at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1013)
at java.base/java.util.ArrayList$Itr.next(ArrayList.java:967
当我在初始化了机器人插件的情况下启动android时,我看到了以下错误:
Plugin 'org.robovm.intellij' failed to initialize and will be disabled. Please restart Android Studio.
com.intellij.diagnostic.PluginException: org/robovm/idea/components/RoboVmApplicationComponent : Unsupported major.minor version 51.0 [Plugin: org.rob
每当我将图像设置为图标时,我就会得到一个错误。下面是我的Addemployee代码:
错误是:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:217)
at InheritancePackage.AddEmployee.initComponents(AddEmployee.java:471)
at InheritancePackag
当我在rxjava中使用Retrofit时,一些机器抛出了OOM,这是日志:
java.lang.IllegalStateException: Fatal Exception thrown on Scheduler.Worker thread.
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:59)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
at java.util.concurrent.FutureT
我在操作栏得到了空指针异常。我使用的是getActionBar().Following错误.我正在扩展活动
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.peoplecloud.guggu/com.peoplecloud.guggu.activity.LandingActivity_}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThre
有谁知道如何开始在Java Swing中调试这个错误吗?
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.BoxLayout.preferredLayoutSize(BoxLayout.java:282)
at java.awt.Container.preferredSize(Container.java:1599)
at java.awt.Container.getPreferredSize(Container.java:1584)
C:\Program Files\Elastic\Elasticsearch\bin>.\elasticsearch.exe java.lang.UnsupportedClassVersionError: org/elasticsearch/bootstrap/Elasticsearch :不支持的major.minor版本52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at ja
我正在尝试安装Check样式,包括SevNTU Check样式扩展在IntelliJ中,如下所示
但是,当我添加配置文件sevntu-校验样式-默认-配置文件时出现了一个错误:
org.infernus.idea.checkstyle.exception.CheckStylePluginException: <html><b>The Checkstyle rules file could not be loaded.</b><br>
cannot initialize module TreeWalker - Unable to inst
我是编写Struts2测试用例的新手。在运行测试用例时,我得到了这个错误
java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/servlet/jsp/PageContext
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at j
我是Jboss Fuse和Jboss development Studio的新手。并且我必须使用ActiveMQ端点开发一条到Fuse ESB的路由。
我可以执行并测试和之前的演示。
然而,当我尝试执行更多的作为“本地驼峰上下文(没有测试)”时,我得到了以下错误:
[ERROR] Terminal initialization failed; falling back to unsupported
java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected
我的windows电脑有netbeans,JDK 7和JRE 7。我写了一个程序,jar文件不能在只有Java 6的MAC上运行。在MAC上安装Java 7是一件麻烦的事。有人能帮我运行这个文件吗?
堆栈跟踪:
: Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(Cl
在这个java异常中,我不明白类名前面的java/base和java/desktop字符串是什么意思: Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: /usr/lib/jvm/java-11-openjdk-11.0.ea.28-2.fc29.i386/lib/libawt_xawt.so
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2620)
at java
数据库使用正常,配置远程服务器后出现连接错误,不知道是否相关。
数据库URL (my为数据库名):
jdbc:mysql://localhost/my
测试连接时,错误信息:
Connection to dessert failed
java.sql.SQLException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
我刚刚在Android Studio中创建了一个新项目,然后收到一条错误消息。我的文件结构如下所示:
-MyApp
-.idea
-workspace.xml
我使用的是Windows 8.1操作系统,这是来自android studio的错误信息
java.lang.RuntimeException: Could not find a JavaToKotlinConversionProvider, even though one should be bundled with Studio
at com.android.tools.idea.npw.model.JavaToK
我刚刚开始测试。我通过docker在本地安装的。看起来SSL证书有问题。我甚至找到了,它似乎已经关闭了。我尝试注册android Emulator,但遇到以下问题:
javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:3