Question

安装步骤

下载并安装JDK 10.0.2
下载并解压缩Netbeans 9（Apache）
使用正确的JDK路径（“ C：\ ProgramFiles \ Java \ jdk-10.0.2”）更改netbeans.conf
配置系统变量和环境变量
以管理员身份启动Netbeans 64x
在Netbeans中获取java.lang.NullPointerException

我使用Windows 10作为操作系统，并且在Windows 7台式电脑上遵循了这些步骤，没有任何问题。

使用Windows 10笔记本电脑时，每次启动Netbeans时都会遇到相同的错误。

创建新项目有效，但仅默认项目模板（Java Modular Project和Java Free-Form Project）有效。打开现有项目适用于默认项目。没有默认模板的项目无法打开。

这是启动Netbeans 9后出现的错误。

java.lang.NullPointerException
    at org.netbeans.modules.editor.fold.ui.CodeFoldingSideBar.resolveBackColor(CodeFoldingSideBar.java:350)
    at org.netbeans.modules.editor.fold.ui.CodeFoldingSideBar.updateColors(CodeFoldingSideBar.java:365)
    at org.netbeans.modules.editor.fold.ui.CodeFoldingSideBar.access$200(CodeFoldingSideBar.java:99)
    at org.netbeans.modules.editor.fold.ui.CodeFoldingSideBar$2.preferenceChange(CodeFoldingSideBar.java:228)
    at org.netbeans.modules.editor.fold.ui.CodeFoldingSideBar.addNotify(CodeFoldingSideBar.java:284)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at org.netbeans.modules.editor.impl.CustomizableSideBar$WestSidebarHolder.addNotify(CustomizableSideBar.java:286)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4783)
    at java.desktop/javax.swing.JRootPane.addNotify(JRootPane.java:733)
    at java.desktop/java.awt.Container.addNotify(Container.java:2798)
    at java.desktop/java.awt.Window.addNotify(Window.java:786)
    at java.desktop/java.awt.Frame.addNotify(Frame.java:490)
    at java.desktop/java.awt.Window.pack(Window.java:824)
    at org.netbeans.modules.java.editor.JavaEditorWarmUpTask.run(JavaEditorWarmUpTask.java:269)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
    at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
    at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
[catch] at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

AppData中的日志文件：

第1部分：https://pastebin.com/m4Gv7S4Y 第2部分：https://pastebin.com/rRt8vC76

JDK 10.0.2的Netbeans 9 java.lang.NullPointerException问题

0 个答案: