I am working on a Maven-based Web Application that is running on Tomcat.
I am trying to add the log4j2 dependency to my maven project. However when I try to build my project the error at the bottom occurs. I tried to install the log4j dependency locally, however I couldn't get it to work neither. I wanted to reinstall Maven, but somehow I can only deactivate it. If you need more Information please tell me so I can provide it.
Output when I try to build the project:
cd C:\...\Blockchain; "JAVA_HOME=C:\\Program Files\\Java\\jdk1.8.0_161" cmd /c "\"\"C:\\Program Files\\NetBeans 8.2\\java\\maven\\bin\\mvn.bat\" -Dmaven.ext.class.path=\"C:\\Program Files\\NetBeans 8.2\\java\\maven-nblib\\netbeans-eventspy.jar\" -Dfile.encoding=UTF-8 install\""
Scanning for projects...
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Building Blockchain 1.0-SNAPSHOT
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Downloading: http://repo.maven.apache.org/maven2/org/apache/log4j-core/2.13.0/log4j-core-2.13.0.pom
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BUILD FAILURE
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Total time: 2.069s
Finished at: Mon May 11 21:50:01 CEST 2020
Final Memory: 8M/123M
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Failed to execute goal on project Blockchain: Could not resolve dependencies for project com.bowolfcoin:Blockchain:war:1.0-SNAPSHOT: Failed to collect dependencies for [com.owlike:genson:jar:1.5 (compile), org.apache:log4j-core:jar:2.13.0 (compile), javax:javaee-web-api:jar:7.0 (provided), org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.23 (compile), org.apache.tomcat:tomcat-jasper:jar:8.5.23 (compile), org.glassfish.jersey.containers:jersey-container-servlet:jar:2.0 (compile), org.bouncycastle:bcpkix-jdk15on:jar:1.56 (compile)]: Failed to read artifact descriptor for org.apache:log4j-core:jar:2.13.0: Could not transfer artifact org.apache:log4j-core:pom:2.13.0 from/to central (http://repo.maven.apache.org/maven2): Failed to transfer file: http://repo.maven.apache.org/maven2/org/apache/log4j-core/2.13.0/log4j-core-2.13.0.pom. Return code is: 501 , ReasonPhrase:HTTPS Required. -> [Help 1]
To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.
For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
Here is the full pom.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bowolfcoin</groupId>
<artifactId>Blockchain</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>Blockchain</name>
<properties>
<tomcat.version>8.5.23</tomcat.version>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.owlike</groupId>
<artifactId>genson</artifactId>
<version>1.5</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.apache</groupId>
<artifactId>log4j-core</artifactId>
<version>2.13.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>${tomcat.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcpkix-jdk15on</artifactId>
<version>1.56</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
I was able to build the project now. However I get the following error when I try to create a Logger object. In the following code, the getLogger() function is underlined red with the following error text:
Code:
package com.blockchain.api.services;
import com.blockchain.logic.DependencyManager;
import com.blockchain.logic.PendingTransactions;
import com.blockchain.models.Block;
import com.blockchain.models.Transaction;
import com.blockchain.utils.SHA3Helper;
import org.apache.logging.log4j.core.Logger;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
/**
*
* @author Bongi
*/
@Path("transactions")
public class TransactionService {
private static Logger logger = Logger.getLogger(Transaction.class);
Error
cannot find symbol
symbol: method getLogger(Class<Transaction>)
location: class Logger
