Intellij not finding my Spring Boot application

Question

Since I upgraded IntelliJ to Ultimate 2019.2, I suddenly started having the following problem:

/opt/jdk-11/bin/java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:43359,suspend=y,server=n -Dspring.profiles.active=dev -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -javaagent:/snap/intellij-idea-ultimate/159/plugins/Groovy/lib/agent/gragent.jar -javaagent:/snap/intellij-idea-ultimate/159/plugins/java/lib/rt/debugger-agent.jar -Dfile.encoding=UTF-8 -classpath /home/thomas/workspace/AddyCaddy/out/production/classes:/home/thomas/workspace/AddyCaddy/out/production/resources:/home/thomas/workspace/AddyCaddy/libs/heavyweight-util-1.11.jar:/home/thomas/workspace/AddyCaddy/libs/AddyCaddy-client-0.5.1-SNAPSHOT.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-actuator/2.1.5.RELEASE/4abebc4ec0ee87155bfa8daf6a9d63366308e58a/spring-boot-starter-actuator-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-data-jpa/2.1.5.RELEASE/f33f69b3744d07f832db6ab48eab227ccde9e922/spring-boot-starter-data-jpa-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.mariadb.jdbc/mariadb-java-client/1.5.9/75d4d6e4cdb9a551a102e92a14c640768174e214/mariadb-java-client-1.5.9.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-web/2.1.5.RELEASE/d46494b46a626cbd8f253066a2d7413412efc908/spring-boot-starter-web-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.h2database/h2/1.4.199/7bf08152984ed8859740ae3f97fae6c72771ae45/h2-1.4.199.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/net.sf.dozer/dozer/5.5.1/f2e52ef54166788ae29b5b4eec6fdb9cd580acab/dozer-5.5.1.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-aop/2.1.5.RELEASE/464cfb573009e724ea76ca404f106b1b19e759ff/spring-boot-starter-aop-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-jdbc/2.1.5.RELEASE/6f187e708a47b0d37552a01292ce649a97a0059d/spring-boot-starter-jdbc-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-devtools/2.1.5.RELEASE/82da693e16b112f535e2cb2682a29b23f7378dd0/spring-boot-devtools-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-json/2.1.5.RELEASE/cf880b4a4713b2a1aea21f929df718a0260aa29/spring-boot-starter-json-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter/2.1.5.RELEASE/74952d169c2da56f7794b3a88508e52005bb8f36/spring-boot-starter-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-actuator-autoconfigure/2.1.5.RELEASE/4e6774d2f4a70e62092dbaace39190f8b1df8083/spring-boot-actuator-autoconfigure-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/io.micrometer/micrometer-core/1.1.4/96eabfe2343a4a4676d215b2122cbbc4d4b6af9b/micrometer-core-1.1.4.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/javax.transaction/javax.transaction-api/1.3/e006adf5cf3cca2181d16bd640ecb80148ec0fce/javax.transaction-api-1.3.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/javax.xml.bind/jaxb-api/2.3.1/8531ad5ac454cc2deb9d4d32c40c4d7451939b5d/jaxb-api-2.3.1.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.hibernate/hibernate-core/5.3.10.Final/e608b854325005edbf43cb2b6041fdafd3f2eb57/hibernate-core-5.3.10.Final.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.data/spring-data-jpa/2.1.8.RELEASE/385ab53309b4f0dfb317c4753fe853821ff15c08/spring-data-jpa-2.1.8.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-aspects/5.1.7.RELEASE/15309277b9a18c8dae21272be3e57b69a67c41f6/spring-aspects-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-tomcat/2.1.5.RELEASE/49de1c20ea6b8c6920d0a66329f9bf980e4498eb/spring-boot-starter-tomcat-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.hibernate.validator/hibernate-validator/6.0.16.Final/ad9557c558972093c0567a2a1f224f318c00f650/hibernate-validator-6.0.16.Final.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-webmvc/5.1.7.RELEASE/686326ff513bf4e852b3ee359cf741d92ab82cfe/spring-webmvc-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-web/5.1.7.RELEASE/595dd528ec66eccc6cf4375ea3b56f3605fa1d1f/spring-web-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/commons-beanutils/commons-beanutils/1.9.1/d2662a4e018671ed061e9acca6299a31b7652f3c/commons-beanutils-1.9.1.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.apache.commons/commons-lang3/3.8.1/6505a72a097d9270f7a9e7bf42c4238283247755/commons-lang3-3.8.1.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.slf4j/jcl-over-slf4j/1.7.26/33fbc2d93de829fa5e263c5ce97f5eab8f57d53e/jcl-over-slf4j-1.7.26.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.zaxxer/HikariCP/3.2.0/6c66db1c636ee90beb4c65fe34abd8ba9396bca6/HikariCP-3.2.0.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.data/spring-data-commons/2.1.8.RELEASE/d68b9a9850ee21319469c40bdbdfe4eaaf29557/spring-data-commons-2.1.8.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-logging/2.1.5.RELEASE/b4fe11fb0e606b67b9fb2bd9ae4fe65b484445dd/spring-boot-starter-logging-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/ch.qos.logback/logback-classic/1.2.3/7c4f3c474fb2c041d8028740440937705ebb473a/logback-classic-1.2.3.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.apache.logging.log4j/log4j-to-slf4j/2.11.2/6d37bf7b046c0ce2669f26b99365a2cfa45c4c18/log4j-to-slf4j-2.11.2.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.slf4j/jul-to-slf4j/1.7.26/8031352b2bb0a49e67818bf04c027aa92e645d5c/jul-to-slf4j-1.7.26.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.slf4j/slf4j-api/1.7.26/77100a62c2e6f04b53977b9f541044d7d722693d/slf4j-api-1.7.26.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-autoconfigure/2.1.5.RELEASE/69ae2819b295603563b95f79abae53f2631c5b94/spring-boot-autoconfigure-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-actuator/2.1.5.RELEASE/eccd3c70cfbe9534db19fbdd6cbf86fab884c3c0/spring-boot-actuator-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot/2.1.5.RELEASE/939061a385b4e30e115978d78a7412fb984674df/spring-boot-2.1.5.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/javax.annotation/javax.annotation-api/1.3.2/934c04d3cfef185a8008e7bf34331b79730a9d43/javax.annotation-api-1.3.2.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-context/5.1.7.RELEASE/b4154d41a70c56eeca42974825fe64a8576642dd/spring-context-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-aop/5.1.7.RELEASE/8138b5e3dd01d514741de35d7f5050599c617509/spring-aop-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-orm/5.1.7.RELEASE/1e532795f730814b07961fbf5f14e14bd2507fcd/spring-orm-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-jdbc/5.1.7.RELEASE/d00069664e066c4021fa3de167ad755e4148f340/spring-jdbc-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-tx/5.1.7.RELEASE/d437d5d353312d94206b469b43e203eba1bdcec6/spring-tx-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-beans/5.1.7.RELEASE/14cd651e4aa3514e75710c9450c7a0c89413e63f/spring-beans-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-expression/5.1.7.RELEASE/7b47446553c83a5a7323d647f5c1793106b2948c/spring-expression-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.springframework/spring-core/5.1.7.RELEASE/280f821b9ed4dad9993f1d551d6e86557092ae58/spring-core-5.1.7.RELEASE.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.yaml/snakeyaml/1.23/ec62d74fe50689c28c0ff5b35d3aebcaa8b5be68/snakeyaml-1.23.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.datatype/jackson-datatype-jsr310/2.9.8/28ad1bced632ba338e51c825a652f6e11a8e6eac/jackson-datatype-jsr310-2.9.8.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.datatype/jackson-datatype-jdk8/2.9.8/bcd02aa9195390e23747ed40bf76be869ad3a2fb/jackson-datatype-jdk8-2.9.8.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.module/jackson-module-parameter-names/2.9.8/c4eef0e6e20d60fb27af4bc4770dba7bcc3f6de6/jackson-module-parameter-names-2.9.8.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.9.8/11283f21cc480aa86c4df7a0a3243ec508372ed2/jackson-databind-2.9.8.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.hdrhistogram/HdrHistogram/2.1.9/e4631ce165eb400edecfa32e03d3f1be53dee754/HdrHistogram-2.1.9.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.latencyutils/LatencyUtils/2.0.3/769c0b82cb2421c8256300e907298a9410a2a3d3/LatencyUtils-2.0.3.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.aspectj/aspectjweaver/1.9.4/9205229878f3d62fbd3a32a0fb6be2d6ad8589a9/aspectjweaver-1.9.4.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/javax.activation/javax.activation-api/1.2.0/85262acf3ca9816f9537ca47d5adeabaead7cb16/javax.activation-api-1.2.0.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.hibernate.common/hibernate-commons-annotations/5.0.4.Final/965a18fdf939ee75e41f7918532d37b3a8350535/hibernate-commons-annotations-5.0.4.Final.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.jboss.logging/jboss-logging/3.3.2.Final/3789d00e859632e6c6206adc0c71625559e6e3b0/jboss-logging-3.3.2.Final.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/javax.persistence/javax.persistence-api/2.2/25665ac8c0b62f50e6488173233239120fc52c96/javax.persistence-api-2.2.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/org.javassist/javassist/3.23.2-GA/c5afe660a95e87ceb518e4f5cf02f5c56b547683/javassist-3.23.2-GA.jar:/home/thomas/.gradle/caches/modules-2/files-2.1/net.bytebuddy/byte-buddy/1.9.12/39050dbbd36862ea87eb9a64158854b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org.addycaddy.AddycaddyApplication

Connected to the target VM, address: '127.0.0.1:43359', transport: 'socket'
Error: Could not find or load main class org.addycaddy.AddycaddyApplication
Caused by: java.lang.ClassNotFoundException: org.addycaddy.AddycaddyApplication
Disconnected from the target VM, address: '127.0.0.1:43359', transport: 'socket'

Process finished with exit code 1

I am running this by clicking the play button on the main function of org.addycaddy.AddycaddyApplication. I have had to remark the directory as the sources directory and the test sources as well. I re-imported my gradle.build. I tried rebuilding the project but it can't find items in my sources project either.

I also tried invalidating caches and restarting. No change.

I can't think of anything else to try.

Answer 1

If you're facing issues with IntelliJ IDEA and need to resolve them, you can try the following steps:

1. Close IntelliJ IDEA.
2. Navigate to the directory containing your source code.
3. Delete the .idea directory and .iml file from the source code directory.
4. Reopen IntelliJ IDEA.
5. Go to File > New > Project from existing sources, I have provided the screen shot below.

6. Select the project and import it as either a Maven or Gradle project, depending on your setup.

This should help reset the project structure and resolve any issues related to the IDE configuration. I’ve provided a screenshot below for reference.

Answer 2

I encountered a similar issue while using IntelliJ IDEA 2021.2, where some artifacts weren't being recognized in the pom.xml file.

To resolve the problem, I followed these steps:

1. Closed the project in IntelliJ.
2. Reopened the project.
3. updated the dependencies via maven.

After doing this, everything worked as expected, and the missing artifacts were successfully recognized.