For how to resolve the NULL pointer exception in MyEclipse 10.7 deployment error

For how to resolve the NULL pointer exception in MyEclipse 10.7 deployment error

(1) The MyEclipse Servers view may not be opened in MyEclipse 10.7.0 in some cases.An attempt to open the view will cause NPE to be recorded.

Could not create the view: An unexpected exception was thrown. java.lang.NullPointerException at com.genuitec.eclipse.ast.deploy.core.Deployment.(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.ModuleDeployment.(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.WebDeployment.(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.Deployment.create(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.loadFromPreferences(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.init(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.getDefault(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer$ServerTreeContentProvider.inputChanged(Unknown Source) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:276) at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690) at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer.(Unknown Source) at com.genuitec.eclipse.ast.deploy.core.ui.ServerView.createPartControl(Unknown Source) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313) at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:534) at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270) at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473) at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1245) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:662) at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:570) at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568) . 

As follows:

(2) If the above error occurs, follow these three steps:

1. First, close the MyEclipse workspace.

2. Delete "/. metadata /. plugins/org. eclipse. core. runtime /. settings/com. genuitec. eclipse. ast. deploy. core. prefs"

This file. Some deployment project information is stored in this file. If the information of the deployed project is deleted, no error occurs.

3. Restart MyEclipse to solve the problem. The cute cat appears again!

When deploying and compiling a web project in myeclipse85, a null pointer exception is reported. Is any file missing? Confuse

If the JDK or JRE version is incorrect, switch to another version.

Myeclipse reports a null pointer, which is the case for every project.

1. Have you reinstalled JDK to reinstall the system? Check if JDK is still absent.
2. After reading the error message, the system prompts whether a filter is filtered out by a malicious user.
3. Another case is that you have not modified the referenced JAR package to import the servlet-api.jar Jar package.
Try again