My exceptions-java. lang. NullPointerException, nullpointerexception
I believe everyone is very familiar with this exception. I believe that everyone has met this exception in their programming career. During the development of 3.
Analysis of Java NULL pointer exceptions (1)
The Java language has an "exception mechanism" to handle special cases in the program. For example, if the divisor is zero, it is an "exception ".The NULL pointer exception java.
ZendStudioforEclipse's java. lang. NullPointerException solution. Of course, this item is very memory-consuming and will not be recommended for configuration. recently, I found that this error occurs when ZendStudioforEclipse is enabled after the PHP project is created. Aninterna is very memory-consuming, and it is not recommended if the configuration is almost c
original Aptana. Link file and the Aptana folder to start myeclipse.
2. Solve the Problem of Java. Lang. nullpointerexception error after enablingIn the displayed dialog box, java. Lang. nullpointerexception is returned. Cli
When any method is called for a null pointer in Java, a null pointer exception (java. lang. NullPointerException) is thrown ). Null Pointer exceptions are definitely the most difficult to find and debug in Java, and you will never
Java. lang. NullPointerException, pointerexception when listView. getChildAt (I)
BaseAdapter returns the component that can display the number of items on the current screen. Therefore, it uses listView. getChildAt (I );
The returned result is a widget that can be displayed on the current screen. You cannot use the listView. getChildAt (I) method to retrieve widg
empty string, it is a null object .), The println method of the out object cannot directly operate on the null object. Therefore, the JSP page where code segment 1 is located will throw a "java. lang. NullPointerException" exception.Even if the Object may be empty, some methods of java.
An error is reported when you use m2eclipse to import an existing Maven project.
Java. Lang. nullpointerexceptionAt org. Apache. Maven. plugin. defaultindescriptorcache $ cachekey. At org. Apache. Maven. plugin. defaultindescriptorcache. createkey (defaultplugindescriptorcache. Java: 62)At org. Apache. Maven. plugin. Interna
Today, when I was working on struts, I encountered the java. Lang. nullpointerexception: module 'null' not found error. I was depressed for a long time,
The Web. xml file is not configured./WEB-INF/struts-config2.xml
If this problem occurs, try this method! It is inconvenient to change eclipse, and it is inconvenient to find the struts plug-in 3.1.2. I still thin
ZendStudioforEclipse6.x can be regarded as the best php ide. of course, this item is very memory-consuming and will not be recommended for configuration.
Recently, this error occurs when Zend Studio for Eclipse is enabled after the PHP project is created.
An internal error occurred during: "Building PHP projects ..."
Of course, this item is very memory-consuming and will not be recommended for configuration.
Recently, this error occurs when Zend studio for eclipse is enabled after the PHP project is created.
An internal error occurred during: "Building PHP projects ..."Java. Lang. nullpointerexception
Annoying. php projects wi
Error series for Android development (1), java. lang. NullPointerException, at android. widget. ListView. setupChild, appwidgetlistview
Problem description: The Running code reports a null pointer error, java. lang. NullPointerException
Lab environment: JDK 1.6, Axis2-1.3, using SSL/TLS (one-way/two-way authentication), Tomcat 5.5/glassfish v2
When you use SSL/TLS to access the Web Service of axis2, the following error occurs:Exception in thread "Main" org. Apache. axis2.axisfault: Java. Lang. nullpointerexception
This error is caused by the use of transportsession in the created web service-i
When I was working on a project and calling data in isubitemdao, the problem of hibernate java. Lang. nullpointerexception always occurred, and the page cannot be displayed. Then I checked the following online and saw the following message:Check the configuration file.For example, in Struts-config, whether the action name and path are consistent with those regist
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