error java lang nullpointerexception unexpected error

Tomcat cannot be started. The following error occurs: Java. Lang. noclassdeffounderror: ORG/Apache/Juli/logging/logfactory. 15:58:46 | category: Tomcat | label: Juli Java Lang Apache org | font size subscription Some time ago, I saw several beta versions of tomcat7.0 release

An error occurred in the production environment of the latest project: At org. hibernate. impl. sessionfactoryimpl. Get (sessionfactoryimpl. Java: 339)At org. hibernate. impl. sessionfactoryimpl. getquery (sessionfactoryimpl. Java: 411)At org. hibernate. impl. sessionimpl. getqueries (sessionimpl. Java: 884)At org. h

This document was written by a renxiong on the Internet. It is very useful and saved. An error occurs when you use axis2_codegen_wizard. When you click Finish in the last step, an error is reported-java. Lang. Reflect. invocationtargetexception. I checked the online information and found many reasons for this problem.

When developing Android WebService, users generally use the WebService server when they accept the returned values. Soapobject = (soapobject) envelope. getresponse (); this is used to accept the returned value, but this method usually produces Java. lang. classcastexception: Org. ksoap2.serialization. soapprimitive. Based on my actual operations and help from others, I finally solved this problem. Use

Caused by: Java. Lang. illegalargumentexception: error at: 0 can't find referenced pointcut Solution: 1. Version issues. View your version. My jar package for jdk1.7 is for aspectjweaver-1.6.6.jar and aspectjrt-1.6.6.jar 2. Spelling is incorrect.CodeThere is an error. You can refer to my. 3. If not. You can l

Java. lang. classcastexception: org.apache.struts.action.actionmessageorg.apache.struts.taglib.html. errorstag. dostarttag (errorstag. java: 215) Org. apache. JSP. login_jsp. _ jspx_meth_html_005ferrors_005f0 (login_jsp.java: 173) Org. apache. JSP. login_jsp. _ jspx_meth_html_005fform_005f0 (login_jsp.java: 115) Org. apache. JSP. login_jsp. _ jspservice (login_js

When you use a jxl package to operate an Excel file, an error occurs when copying a large number of cells. The information is as follows: 1 Java. Lang. arrayindexoutofboundsexception: 441 2 Jxl. Biff. indexmapping. getnewindex (indexmapping. Java: 68 ) 3 Jxl. Biff. formattingrecords. rationalize (f

Atitit. Exception in thread "main" java. lang. Error: Unresolved compilation problem:, atitit Atitit. Exception in thread "main" java. lang. Error: Unresolved compilation problem: 1.1. check whether a class file is generated and

An error occurred while exporting jxl Excel: Java. Lang. arrayindexoutofboundsexception: 31 Java. Lang. arrayindexoutofboundsexception: 31At jxl. Biff. indexmapping. getnewindex (indexmapping. Java: 68)At jxl. Biff. formattingrec

Java. lang. NoSuchFieldError: RAW_XML_FILE_HEADER, call XWPFTemplate to dynamically merge and generate a new docx document. An error is reported, xwpftemplatedocx When using org. apache. when poi dynamically merges the office file into a new file based on the form content and the last attachment, the local debugging is completely OK, but this

Caused by: java. lang. ClassNotFoundException: org. apache. poi. ss. formula. udf. UDFFinder, poiformula get Error Caused by: java. lang. ClassNotFoundException: org. apache. poi. ss. formula. udf. UDFFinder I receive this error

An error occurs when I create another SSH project tonight. java. Lang. nosuchmethoderror: anlr. Collections. Ast. Getline () I And the error is strange. This is the first query.Code, No problems Request. setattribute ("countrylist", countryservice. getresult ("from country", null )); However, when the code is w

Javax. servlet. ServletException: java. lang. NoClassDefFoundError: javax/el/ELResolver error solution, Today, you don't need eclipse, myeclipse, or other development tools. When writing a JSP page (a little dead), you suddenly encounter problems that you have never encountered before. The error is as follows: HTTP Sta

ECLIPSE android layout page file error troubleshooting Exception raised during rendering: java. lang. System. arraycopy ([CI [CII) V, page file Manually add or drag controls to the layout. After edittext is added, the layout is not easy to use and other controls are easy to use. Then let's talk about the following section. Exception raised during rendering:

) java.net.URLClassLoader.findClass(URLClassLoader.java:188) java.lang.ClassLoader.loadClass(ClassLoader.java:306) java.lang.ClassLoader.loadClass(ClassLoader.java:299) sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276) java.lang.ClassLoader.loadClass(ClassLoader.java:299) java.lang.ClassLoader.loadClass(ClassLoader.java:251) java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactor

Package java. Lang; /**** The subclass of throwable indicates a serious problem and cannot be applied.ProgramSolve in Catch Block* Therefore, it does not need to be intercepted in the catch block or listed in the throws list of the method. It can also be compiled** Comment by liqiang**/Public class error extends throwable {Static final long serialversionuid = 4

Caused by: Java. Lang. classnotfoundexception: XXXXX In loader Dalvik. system. pathclassloader [/data/APP/xxxx.apk] I think we often encounter classnotfoundexception exceptions due to negligence. In Android development, this exception is nothing more than telling you that the class is not found. Why did it fail to be found? In fact, there are two situations: 1. When you start an activity, you may forget to

Ndk make: *** no rule can be created $ Ndk/ndk-build The above error is generally because Android. mk in your JNI file contains spaces that are not suitable. There may be many reasons for this problem.If this problem occurs, check the Android. mk file and remove all useless spaces. ========================================================== ====================================== Android Ubuntu JNI so error