Kettle java组件getting feilds ...please wait问题

叁歲伎倆 2022-11-16 13:51 341阅读 0赞

## 问题 ##

一个未预期的错误发生在Spoon: probable cause:在停止Spoon前，请先关闭其它spoon窗口!  
java.lang.NullPointerException  
at org.pentaho.di.ui.trans.steps.userdefinedjavaclass.UserDefinedJavaClassDialog.treeDblClick(UserDefinedJavaClassDialog.java:1557)  
at org.pentaho.di.ui.trans.steps.userdefinedjavaclass.UserDefinedJavaClassDialog.access$400(UserDefinedJavaClassDialog.java:122)  
at org.pentaho.di.ui.trans.steps.userdefinedjavaclass.UserDefinedJavaClassDialog$5.handleEvent(UserDefinedJavaClassDialog.java:419)  
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)  
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)  
at org.pentaho.di.ui.trans.steps.userdefinedjavaclass.UserDefinedJavaClassDialog.open(UserDefinedJavaClassDialog.java:576)  
at org.pentaho.di.ui.spoon.delegates.SpoonStepsDelegate.editStep(SpoonStepsDelegate.java:127)  
at org.pentaho.di.ui.spoon.Spoon.editStep(Spoon.java:8766)  
at org.pentaho.di.ui.spoon.trans.TransGraph.editStep(TransGraph.java:3217)  
at org.pentaho.di.ui.spoon.trans.TransGraph.mouseDoubleClick(TransGraph.java:783)  
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)  
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)  
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)  
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)  
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1366)  
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:8022)  
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9277)  
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:692)  
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)  
at java.lang.reflect.Method.invoke(Method.java:498)  
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)

## 解决方案 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTM1NzMzMg_size_16_color_FFFFFF_t_70]  
点击“测试类”，保存即可。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTM1NzMzMg_size_16_color_FFFFFF_t_70]: /images/20221022/4424b80578a844b6a77416ce3cc25afa.png