Java. lang. ExceptionInInitializerError exception,
During the development process today, Baidu encountered an exception in java. lang. ExceptionInInitializerError.
If an unexpected exception occurs in the static initialization program, the ExceptionInInitializerError is thrown, indicating that an exception occurs durin
When I did the graphic verification code, I randomly found a segment of code from the Internet. The result showed this exception. The details are as follows:
(
4361578
MS) [HTTP
-
8080
-
Processor25] error: org. Apache. Catalina. Core. containerbase. [Catalina]. [localhost]. [
/
Xixibar]. [JSP] # invoke: servlet. Service ()
For
Servlet JSP threw exception
Java. Lang. illegalstateexception: getoutputstream
Exception in thread "Main" Java. Lang. securityexception: Class "org. Eclipse. SWT. Widgets. ufccomposite"'s signer information does not match signer information of other classes in the spackame
Under what circumstances can this exception occur?When you define a class in your own program that is the same as the built-in system (such as JDK and other libraries.For example, defineJava.
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 released. I didn't test it because it was not stable
Use struts1, And the actionform class is as follows:
Private string menutype; private clientuser user;... corresponding get and set methods...
The action class is as follows:
Public actionforward execute (actionmapping mapping, actionform form, httpservletrequest request, httpservletresponse response) {system. out. println ("========= enter the userinfoaction class =========="); userinfoform = (userinfoform) form ;}
However, when submitting a form, you may encounter the following problems:
====
This problem occurs when Tomcat is started when struts2 + hibernate + spring is set up.
Severe: Error Handling ing application listener of class org. springframework. Web. Context. contextloaderlistenerJava. Lang. classnotfoundexception: org. springframework. Web. Context. contextloaderlistenerAt org. Apache. Catalina. loader. webappclassloader. loadclass (webappclassloader. Java: 1358)At org. Apache. Catal
, such as JBoss and WebLogic, share the same principle.
I. java. lang. outofmemoryerror: The full name of permgen space is permanent generation space, which refers to the permanent storage area of the memory. This memory is mainly used by JVM to store class and meta information, when a class is loaded, it will be placed in the permgen space. It is different from the heap region where the class instance is s
When classloader is used to load resources, the following errors often occur:
Exception in thread "Main" Java. Lang. noclassdeffounderror: COM/tools/resultAt java. Lang. Class. getdeclaredconstructors0 (native method)At java. Lang
The error details are as follows::
[6/27/13 15: 54: 49: 679 CST] 00000043 systemout o error-An error occurred while obtaining the instance of the specified object [appendixmgr! Check the configuration file! -Com. TRS. dreamfactory. createobjectbyid (dreamfactory. java: 79) Org. springframework. beans. factory. beancreationexception: Error creating bean with name 'appendixmgr 'defined in file [/opt/IBM/WebSphere/appserver/profiles/invalid rv06/installe
Tomcat outofmemoryerror (permgen space) Solution
Recently I have been familiar with a project that has been developed for several years. I need to port the database from MySQL to Oracle. First, I need to point the JDBC connection to MySQL and package it into tomcat to run it. There is no problem, however, when the JDBC connection is directed to Oracle, Tomcat continuously throws Java. lang. outofmemoryerro
IntentService exception: java. lang. InstantiationException:, intentservice
public MyIntentService() { super(nameStr); }
JavalangInstantiationException in java reflection: exception, solved
The error KEY is used for instantiation, and the VALUE is used for instantiation.String val = prop. getProperty (name );ObjectPool. put (name, createObje
Today I encountered such a problem and solved it. I know what is going on.
Java. lang class IllegalArgumentExceptionjava. lang. Object java. lang. Throwable java. lang. Exception
Sometimes this problem occurs when the program is running. Here, it is caused by the path problem,
Let's see what I changed.
Protected object getobj (string beanname) {
Here, because I used the original method to obtain the path. XML also configures the path listening, but sometimes it cannot be obtained, which may cause such problems,
I hope you can pay more attention to it.
Severe: servlet. Service () for servlet assoecservlet threw exceptionJava. Lang
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