Why, after building the jar in it (in the jar), the manifest does not state the Main-Class: Main although there is this line in the IDEA in Monifest?

In IDEA it is written like this: Manifest-Version: 1.0

Main-Class: Main

in the jar file it is written like this:

Manifest-Version: 1.0 Implementation-Title: MySQL Connector/J Bundle-SymbolicName: com.mysql.cj Implementation-Version: 8.0.12 Built-By: pb2user Specification-Vendor: Oracle Corporation Bundle-ManifestVersion: 2 Specification-Title: JDBC Implementation-Vendor-Id: com.mysql Bundle-Vendor: Oracle Corporation Import-Package: javax.net.ssl;javax.crypto;resolution:=optional,javax. xml.parsers;javax.xml.stream;javax.xml.transform;javax.xml.transform. dom;javax.xml.transform.sax;javax.xml.transform.stax;javax.xml.transf orm.stream;org.w3c.dom;org.xml.sax;org.xml.sax.helpers;resolution:=op tional,javax.sql;javax.naming;javax.naming.spi;javax.transaction.xa;r esolution:=optional,javax.management;resolution:=optional,com.mchange .v2.c3p0;version="[0.9.1.2,1.0.0)";resolution:=optional,org.jboss.res ource.adapter.jdbc;org.jboss.resource.adapter.jdbc.vendor;resolution: =optional,org.slf4j;resolution:=optional,com.google.protobuf;javax.se curity.auth.callback;javax.security.sasl;resolution:=optional Implementation-Vendor: Oracle Ant-Version: Apache Ant 1.8.2 Export-Package: com.mysql.cj.jdbc;version="8.0.12";uses:="javax.manage ment,javax.naming,javax.naming.spi,javax.net.ssl,javax.sql,javax.tran saction.xa,javax.xml.parsers,javax.xml.stream,javax.xml.transform,jav ax.xml.transform.dom,javax.xml.transform.sax,javax.xml.transform.stax ,javax.xml.transform.stream,org.xml.sax",com.mysql.cj;version="8.0.12 ",com.mysql.cj.protocol;version="8.0.12",com.mysql.cj.protocol.result ;version="8.0.12",com.mysql.cj.result;version="8.0.12",com.mysql.cj.p rotocol.a;version="8.0.12",com.mysql.cj.protocol.a.authentication;ver sion="8.0.12",com.mysql.cj.protocol.a.result;version="8.0.12",com.mys ql.cj.protocol.x;version="8.0.12",com.mysql.cj.x.protobuf;version="8. 0.12",com.mysql.cj.log;version="8.0.12",com.mysql.cj.util;version="8. 0.12",com.mysql.cj.jdbc.util;version="8.0.12",com.mysql.cj.jdbc.excep tions;version="8.0.12",com.mysql.cj.exceptions;version="8.0.12",com.m ysql.cj.jdbc.ha;version="8.0.12",com.mysql.cj.jdbc.interceptors;versi on="8.0.12",com.mysql.cj.jdbc.integration.c3p0;version="8.0.12";uses: ="com.mchange.v2.c3p0",com.mysql.cj.jdbc.integration.jboss;version="8 .0.12";uses:="org.jboss.resource.adapter.jdbc,org.jboss.resource.adap ter.jdbc.vendor",com.mysql.cj.configurations;version="8.0.12",com.mys ql.cj.conf;version="8.0.12",com.mysql.cj.conf.url;version="8.0.12",co m.mysql.jdbc;version="8.0.12";uses:="com.mysql.cj.jdbc",com.mysql.cj. jdbc;version="8.0.12",com.mysql.cj.jdbc.jmx;version="8.0.12",com.mysq l.cj.jdbc.result;version="8.0.12",com.mysql.cj.xdevapi;version="8.0.1 2";uses:="com.google.protobuf,javax.security.auth.callback,javax.secu rity.sasl",com.mysql.cj.admin;version="8.0.12",com.mysql.cj.jdbc.admi n;version="8.0.12" Bundle-Version: 8.0.12 Bundle-Name: Oracle Corporation's JDBC and XDevAPI Driver for MySQL Bundle-ClassPath: . Created-By: 1.8.0_92-b14 (Oracle Corporation) Specification-Version: 4.2

Why maven does not want to register in jar Main-Class: Main? How to fix?

  • Are you running Oracle and trying to add a main class to the MySQL JDBC driver? - Sergey Gornostaev
  • I still do not understand what is Orakl. I compiled the code using the maven project. I created it in the jar file to launch the application by clicking on the jar. But it does not start, I looked inside the jar in the manifest and there is no Main-Class: Main line, I added it manually and the jar started, but when the IDE code is changed again, the Main-Class: Main line inside the jar disappears. I think something needs to be done in IDEA, but I do not know. - sema207
  • The application has a code to connect to the database. - sema207
  • In the Manifesto in IDEA it is written so Manifest-Version: 1.0 Main-Class: Main - sema207

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