exception in thread main java lang error unresolved compilation problem

) atOrg.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean ( Abstractadvisorautoproxycreator.java: the) atOrg.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary ( Abstractautoproxycreator.java:359) atOrg.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization ( Abstractautoproxycreator.java:322) atOrg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.appl

There are two main types of errors that occur in this error Dependent package Duplication Number of methods over 65K For the first kind of error, it may be that the Build.gradle wrotecompile fileTree(dir: ‘libs‘, include: [‘*.jar‘])This way, while adding a separate dependencyFor the second cause of the error, using Multidex packaging can solv

The deployment of Java EE was recently learned without the help of deployment in eclipse, but rather by modifying the Server.xml fileAdd a context PathAt the beginning, every time I was prompted,Exception Starting filter BackservletfilterJava.lang.ClassNotFoundException:tmall.filter.BackServletFilterBut I looked at Tomcat's logs error log localhost.xxxx.log found

floats on the surface: When an iterator is obtained, the expectedmodcount is equal to the Modcount value, but at the same time as the iteration, the Cachemap.remove (key) of line 55th causes the Modcount value to increment by 1, resulting in modcount! = Expectedmodcount, then throws Concurrentmodificationexception exception.ResultsIt is concluded from the above conclusion that:In the process of Hashtable iteration, in addition to the operation in the iterator, when the map object has a structur

The former saw a programming learning Method- Rubber Duck Debugging Method , is to take a small yellow duck.Talk to him in person, tell him about your programming ideas, if you don't have a rubber duck or a girlfriend who can listen to you java,c,cpp, front end, Io, system kernel, assembly, data structure, computer network, then blogging is also a good way to comb your own ideas.The basic idea of Java is th

A server 500 exception occurs and, if handled by default, jumps to the Tomcat default exception page after the exception is captured, as shown in the following illustration. Regardless of which Web site is the same, Tomcat also allows custom styling to meet the needs of customization. That is, the configuration in the Web.xml file: First, the log

parsing:APR 1:29:08 PM org.apache.catalina.core.StandardWrapperValve invokeSEVERE:Servlet.service () for Servlet [ Appservlet] In the context with the path [/bsettle] threw exception [Request processing failed; nested exception is Org.apache.poi . POIXMLException:org.apache.poi.openxml4j.exceptions.InvalidFormatException:Package should contain a content type Part [M1.13]] with root causeorg.apache.poi.open

Reprint: The difference between error and exception in 7990485javaThe parent classes of the error class and the exception class are throwable classes, the difference being:The error class generally refers to problems related to virtual machines, such as system crashes, virtu

Eclipse solves the Unhandled event loop exception error when editing the java file. eclipseunhandled You can try: It has nothing to do with Baidu anti-virus. It is a problem with the myeclipse editor. Myeclipse-> window-> preferences-> general-> editors-> file associationsSelect JSP and select the follo

　　　　Description of the error:Under the Kafka installation directory, execute $ bin/zookeeper-server-start.sh config/zookeeper.properties Unrecognized VM option ' usecompressedoops 'Error:clould not create the Java vritual machine.ERROR:A Fatal exception has occurres. Program would exit.　　Workaround:Locate bin/kafka-run-class.sh file, use Vim to open, this version of Me is in line 115113 # JVM Performance O

As a flex development tool for Visual Studio Plug-ins, the ensemble company's Tofino is really attractive, and the installation files that contain the compilation environment are 122M in total, compared to flex Builder. Moreover, for a. NET programmer who is familiar with the VS development environment, it is much easier to use such plug-ins for flex development. Download the installation files from the official website and choose 122M installation p

() {while (true) {r.consume (); }} public class Producerconsumer {public static void main (string[] args) {Resource r=new Resource (); Producer producer=new Producer (R); Consumer consumer=new Consumer (R); Thread T0=new thread (producer); Thread T1=new thread (producer);

java resolves byte 2 of an exception 2-byte UTF-8 sequence Invalid problem Recently done the project, encountered an exception 2 bytes of the UTF-8 sequence of bytes 2 invalid problem, the Internet to find the next data, here to record the solution, have encountered the sam

();}}The difference between the two is a monitorthis, a monitor lock object.The more special cases are:Synchronized Publi static execute () {　　}The class object is locked by a. Class object.Inconsistencies in the following are mainly seen in the synchronized lock on "A",Constant string objects are globally unique throughout the life cycle, therefore, the global effect of "a" is not only in the sub-class, but in a timely manner any synchronized ("a") will have a synchronous effect, which violate

Threads3*use of thread concurrency Sync lock synchronized (Object) {}4*/5 Public classTHREAD05 {6 Public Static voidMain (string[] args) {7 //define a ticket window8Ticketwindow tw1=NewTicketwindow ();9 Ten //start at the same time with three threads OneThread t1=NewThread (TW1); AThread t2=NewThread (TW1); -Thread t3=NewThread (TW1); - the T1.start (); - T2.start ();

Thread synchronizationIn the multi-threaded programming environment, it may look at the code that is not the problem after thousands of tens or more times, there are some looking at the strange problem, the reason is that there may be two or more threads into the same piece of business processing code to cause the judgment to fail. To solve this

Analytical:a.arraylist can store null values, or they can store duplicate values, without any effect on the collection. B. Once the instantiation does not change its size, this is the attribute of the array. The capacity of a collection is self-expanding. C.arraylist can store duplicate values and have no effect on the collectionD.arraylist No capacity This attribute, translated is the meaning of capacity, ArrayList capacity will automatically expand without giving value, the default value is te

Straight to the topic, the Java Connection virtual machine error, the code is as follows: public class Testping {public static void Main (string[] args) {Jedis Jedis = new Jedis ("192.168.201.128", 6379);System.out.println (Jedis.ping ());}} To run the error, the console information is as follows: Exception in

Java Problem Summary 21--private use instances and manually set the errorPackage Java831;public class Testprivate {public static void main (string[] args) {person p= new person ();p. Setage (1120); System.out.println (P.getage ());}} class Person{private int age;public void setage (int i) {if (i>130 | | iExecution Result:Exception in thread "main" Java.lang.Runti