Java 例外初始化错误，如何精确定位错误位置

我得到了

例外初始化错误
。我被告知“
getException（）
方法现在被称为原因，可以通过
Throwable.getCause（）
方法以及前面提到的“遗留方法”进行访问。“调用
getCause（）
”
我如何将这些方法应用到我的代码中以发现错误？例如，我是否将其放在类的开头？周围是一个try-catch？是否有我可以看到的示例？谢谢

编辑：好的，这是整个错误日志：

CacheEntry[file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar]: updateAvailable=false,lastModified=Sat Mar 22 11:39:02 PDT 2014,length=225068
0
CacheEntry[file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar]: updateAvailable=false,lastModified=Sat Mar 22 11:39:02 PDT 2014,length=225068
Trace level set to 5: all ... completed.ui: Pushing modality for applet ID 14 with dialog sun.plugin.util.PluginSysUtil$DummyDialog[dialog0,-100,-100,132x38,layout=java.awt.BorderLayout,APPLICATION_MODAL,title=,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,3,25,126x10,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
basic: Dialog type is not candidate for embedding
ui: Pushing modality for applet ID 14 with dialog javax.swing.JDialog[dialog1,425,258,516x190,layout=java.awt.BorderLayout,TOOLKIT_MODAL,title=Application Error,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,3,25,510x162,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
basic: PluginMain.unregisterApplet: 14 from mananger sun.plugin2.applet.Applet2Manager@1d9024f
preloader: Construct preloader delegate
preloader: Setting default preloader and progress monitor for non JNLP applets
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@124f232
preloader: Installing progress monitor true
basic: Plugin2ClassLoader.addURL parent called for file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar
network: Cache entry found [url: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar
cache: Resource file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar has expired.
network: ResponseCode for file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar : 200
network: Encoding for file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar : null
CacheEntry[file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar]: updateAvailable=false,lastModified=Sat Mar 22 11:39:02 PDT 2014,length=225068
cache: Reading Signers from 5 file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar | C:\Users\Camtronius\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\50\7023cb32-6e9bc9fb.idx
network: No certificate info for unsigned JAR file: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar
cache: Done readSigners(file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar)
cache:  Read manifest for file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar: read=194 full=194
preloader: Using preloader class: null com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter@d4ba66
preloader: Using default preloader
preloader: Requested to use preloader class: null
ruleset: Non-jnlp rule id: 
        title: sonomaroller/SonomaRoller
        location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
        jar location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar
        jar version: null
        isArtifact: true
ruleset: finding Deployment Rule Set for 
        title: sonomaroller/SonomaRoller
        location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
        jar location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/sonomaroller/SonomaRoller.jar
        jar version: null
        isArtifact: true
ruleset: no rule applies, returning Default Rule
network: Created version ID: 1.7.0.51
network: Created version ID: 1.7.0.51
network: Created version ID: 1.7.0.51
network: Created version ID: 1.7.0.51
ruleset: Non-jnlp rule id: 
        title: sonomaroller/SonomaRoller
        location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
        jar location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/
        jar version: null
        isArtifact: true
ruleset: finding Deployment Rule Set for 
        title: sonomaroller/SonomaRoller
        location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
        jar location: file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/
        jar version: null
        isArtifact: true
ruleset: no rule applies, returning Default Rule
security: SSV validation:
    running: 1.7.0_51
    requested: null
    range: null
    javaVersionParam: null
    Rule Set version: null
network: Created version ID: 1.7.0.51
network: Created version ID: 1.7.0.51
security: continue with running version
network: Created version ID: 1.7.0.51
network: Created version ID: 1.7
network: Created version ID: 2.2.51
security:  --- parseCommandLine converted : 
into:
[]
preloader: Added pending event 1: AppletInitEvent[type=CallConstructor]
preloader: Delivering: AppletInitEvent[type=CallConstructor]
preloader: Skipped all (0) download events prior to null
preloader: Start progressCheck thread
preloader: GrayBox: parent = sun.plugin2.main.client.PluginEmbeddedFrame[frame2,0,0,550x550,layout=java.awt.BorderLayout,title=,resizable,normal]
basic: exception: java.lang.reflect.InvocationTargetException.
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.runOnEDTAndWait(Unknown Source)
    at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.instantiateApplet(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
    at com.sun.deploy.uitoolkit.impl.awt.OldPluginAWTUtil.invokeAndWait(Unknown Source)
    ... 5 more
Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "exitVM.0")
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at sun.plugin2.applet.AWTAppletSecurityManager.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkExit(Unknown Source)
    at javax.swing.JFrame.setDefaultCloseOperation(Unknown Source)
    at sonomaroller.SonomaRoller.<init>(SonomaRoller.java:19)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter$1.run(Unknown Source)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$200(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
preloader: Delivering: ErrorEvent[url=file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/ label=java.lang.reflect.InvocationTargetException cause=java.lang.reflect.InvocationTargetException
basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter@124f232
preloader: Preloader shutdown after ErrorEvent
preloader: Stop progressCheck thread
ui: Show default error panel
security: Reset deny session certificate store
basic: PluginMain.unregisterApplet: 15 from mananger sun.plugin2.applet.Applet2Manager@18f9ba9

CacheEntry[文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar]：updateAvailable=false，lastModified=2014年3月22日星期六11:39:02 PDT，长度=225068
0
CacheEntry[文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar]：updateAvailable=false，lastModified=2014年3月22日星期六11:39:02 PDT，长度=225068
跟踪级别设置为5:all…completed.ui：使用对话框sun.plugin.util.PluginSysUtil$DummyDialog[dialog0，-100，-100132x38，layout=java.awt.BorderLayout，APPLICATION_model，title=，defaultCloseOperation=HIDE_ON_CLOSE，rootPane=javax.swing.JRootPane[，3,25126x10，layout=javax.swing.JRootPane$RootLayout，alignmentX=0.0，alignmentY=0.0，border=，flags=16777673，maximumSize=，minimumSize=，preferredSize=]，rootPaneCheckingEnabled=true]
基本：对话框类型不是嵌入的候选类型
ui：使用对话框javax.swing.JDialog为小程序ID 14推送模态[Dialog1425258516x190，layout=java.awt.BorderLayout，TOOLKIT\u模态，title=Application Error，defaultCloseOperation=HIDE\u ON\u CLOSE，rootPane=javax.swing.JRootPane[，3,25510x162，layout=javax.swing.JRootPane$RootLayout，alignmentX=0.0，alignmentY=0.0，border=，flags=16777673，maximumSize=，minimumSize=，preferredSize=]，rootPaneCheckingEnabled=true]
基本：PluginMain.unregistereapplet:14来自mananger sun.plugin2.applet。Applet2Manager@1d9024f
预加载程序：构造预加载程序委托
预加载程序：为非JNLP小程序设置默认预加载程序和进度监视器
基本：添加进度侦听器：sun.plugin.util。ProgressMonitorAdapter@124f232
预加载程序：安装进度监视器为true
basic:Plugin2ClassLoader.addURL为文件调用的父项：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar
网络：找到缓存项[url:file:/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar，版本：null]prevalidated=false/0
缓存：添加内存缓存项：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar
缓存：资源文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar已过期。
网络：文件响应代码：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar:200
网络：文件编码：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar:null
CacheEntry[文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar]：updateAvailable=false，lastModified=2014年3月22日星期六11:39:02 PDT，长度=225068
缓存：从5个文件中读取签名者：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar | C:\Users\Camtronius\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\50\7023cb32-6e9bc9fb.idx
网络：未签名JAR文件没有证书信息：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.JAR
cache:Done readSigners（文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar）
缓存：读取文件的清单：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar:Read=194 full=194
预加载程序：使用预加载程序类：null com.sun.deploy.uitoolkit.impl.awt。AWTAppletAdapter@d4ba66
预加载程序：使用默认预加载程序
预加载程序：请求使用预加载程序类：null
规则集：非jnlp规则id:
标题：索诺玛洛勒/索诺玛洛勒
位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
jar位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar
jar版本：null
事实：是的
规则集：查找的部署规则集
标题：索诺玛洛勒/索诺玛洛勒
位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
jar位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/SonomaRoller/SonomaRoller.jar
jar版本：null
事实：是的
规则集：没有适用的规则，返回默认规则
网络：已创建版本ID:1.7.0.51
网络：已创建版本ID:1.7.0.51
网络：已创建版本ID:1.7.0.51
网络：已创建版本ID:1.7.0.51
规则集：非jnlp规则id:
标题：索诺玛洛勒/索诺玛洛勒
位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
jar位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/
jar版本：null
事实：是的
规则集：查找的部署规则集
标题：索诺玛洛勒/索诺玛洛勒
位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/AppletTest.html
jar位置：文件：/C:/Users/Camtronius/Documents/NetBeansProjects/SonomaRoller/build/classes/
jar版本：null
事实：是的
规则集：没有适用的规则，返回默认规则
安全性：SSV验证：
运行：1.7.0_51
请求：空
范围：空
javaVersionParam:null
统治
public class ExceptionFinder {

    public static void main(String[] args) {

        try {
            UIManager.setLookAndFeel("sasa");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Caused by: java.security.AccessControlException: access denied 
    ("java.lang.RuntimePermission" "exitVM.0")

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);