java lang illegalstateexception

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 complete. Recently, this error occurs when Ze

Java. Lang. illegalargumentexception: Can't find neither a featuretype nor a coverageinfo named... Solution see http://jira.codehaus.org/browse/GEOS-3337 Only on layers we have uploaded ourselves, getfeatureinfoRequest when clicking on a feature yields the following, instead ofTable. Java. Lang. illegalargumentex

Java. Lang. noclassdeffounderror: COM/opensymphony/xwork2/util/textutils This exception occurs when struts 2.1.8 is used with strut2 JSON plug .. Java. Lang. noclassdeffounderror: COM/opensymphony/xwork2/util/textutils The reason is that the JSON plug-in version is not suitable ..Some say that the JSON plug 3.3 is u

Java. Lang. classcastexceptionKeyword: classcastexception1. Problem: Java. Lang. classcastexceptionSolution: downward conversion or forced conversion. My problem is that an error is reported when an interface is manually generated for a class. Finally, I use eclipse to automatically generate. 2. Problem: One-to-least

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 because of version differences between poi (3.9) and poi-ooxml (3.10. Check your version.

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 the size of the class is 1. 1.2. Observe the ide source file. There is a red cross on the

Java. lang. UnsatisfiedLinkError: % 1 is not a valid Win32 application ., Not a 32-bit valid application When JNA calls the dll library, the following error occurs: //// // Introduce the DLL library through JNA // /// *** ID_FprCap.dll fingerprint collection, fingerprint device initialization, setting, etc. */public interface ID_FprCap extends StdCallLibrary {ID_Fpr fpr = ID_Fpr.INSTANCE; ID_FprCap fprCap =

Java. lang. ClassCastException occurs during Spring aop testing. springexception The Code is as follows: public class UserTest { private static UserServiceImpl userService ; @BeforeClass public static void iniUserService(){ ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml") ; userService = (UserServiceImpl) applicationContext.g

Exception in thread "com. mchange. v2.async. threadpoolasynchronousrunner $ poolthreaD-#2 "Java. Lang. noclassdeffounderror: cocould not initialize class com. MySQL. JDBC. connectionimpl Sqlclientinfoexception is only available in JDK 6.0 The solution to the error is as follows: According to the error message, the "Java/SQL/sqlclientinfoexception" informa

Symptom: It can be compiled by using eclipse and other IDE development tools, but can be run. However, it can be compiled by saving dos in notepad and cannot be run. The error "exception in thread" Main "Java. lang. noclassdeffounderror ". Solution: 1. It is impossible to set environment variables incorrectly because integrated development tools can run 2. I wrote a simple "helloworld" again in no

09-13 15:19:57. 282: E/androidruntime (8054): caused by: Java. Lang. Reflect. invocationtargetexception 09-13 15:19:57. 282: E/androidruntime (8054): At com. ailk. View. Excel. viewexcel_ailk. 09-13 15:19:57. 282: E/androidruntime (8054): At java. Lang. Reflect. constructor. constructnative (native method) 09-13 15:1

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 (formattingrecords.

Java. lang. IllegalArgumentException: The observer is null. Final Solution, isnullJava. lang. IllegalArgumentException: The observer is null. Final Solution When using data adaptation: java.lang.IllegalArgumentException: The observer is null.at android.database.Observable.unregisterObserver(Observable.java:64)at android.widget.BaseAdapter.unregisterDataSetObserv

Java. Lang. noclassdeffounderror: cocould not initialize class net. SF. cglib. Proxy. Enhancer2009-09-16 Spring, hibernate, and Struts class libraries automatically imported by myeclipseProblems found when publishing to Tomcat:Java. Lang. noclassdeffounderror: cocould not initialize class net. SF. cglib. Proxy. EnhancerSessionfactory bean creation fa

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 error is always reported in the Linux environment.

Tomcat startup Exception in Struts2: Exception starting filter struts2, a java. lang. ClassNotFoundException, struts2filter When writing a small example of struts2 + hibernate integration, start the Tomcat server and report: Severe: Exception starting filter struts2Java. lang. ClassNotFoundException: org. apache. struts2.dispatcher. ng. filter. StrutsPrepareAndEx

Description of the software package java. lang: provides basic classes for Program Design Using Java programming language. The most important Class is Object (it is the root of the Class hierarchy) and Class (its instance represents the Class in the running application ).It is usually necessary to regard the value of the basic type as an object. The wrapper type

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. Compared with the code generation plug-in of axis2, the solution was found on a foreign fo

Classcastexception, literally, is a type conversion error, which is usually an error during forced type conversion. Next, analyze the causes of classcastexception, and provide a solution to this exception. How does this exception occur? Let's give a more vivid example. Animal indicates animals, dog indicates dogs, cat indicates cats, and animal subclasses. See the followingCode: Animal a1 = new dog (); // 1 Animal a2 = new CAT (); // 2 Dog d1 = (DOG) A1; // 3 Dog D2 = (DOG) A2; //

I recently encountered more than N errors when I configured the android Development Environment on Ubuntu. Let's talk about it. If there is a similar error, just modify it. So far, the ADT version has been upgraded to 18. When the SDK version is upgraded to 4.0.3, the ADT version is required to be 17 or later. If any problem occurs after the upgrade, it may be caused by the JDK version. Please note that, adt17 requires that the JDK version be in JDK 1.6 or later. When the ADT version is 17