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Fatal error compiling: invalid target release: 11 during pushing to heroku

im trying to deploy my back end application to heroku
bun when I run this command
git push --force heroku-be-app splitting-staging-be:master
im getting this error
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/com/thoughtworks/qdox/qdox/2.0-M9/qdox-2.0-M9.jar (317 kB at 7.6 MB/s)
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 24 source files to /tmp/build_4e875976/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.593 s
[INFO] Finished at: 2020-12-21T15:28:14Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project backend: Fatal error compiling: invalid target release: 11 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
! ERROR: Failed to build app with Maven
We're sorry this build is failing! If you can't find the issue in application code,
please submit a ticket so we can help: https://help.heroku.com/
! Push rejected, failed to compile Java app.
! Push failed
This is my pom 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>vs</groupId>
<artifactId>backend</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>backend</name>
<description>Main server voor van streek project</description>
<properties>
<java.version>15</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>5.4.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>jakarta.mail</artifactId>
<version>1.6.5</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>15</source> <!-- maven.compiler.source -->
<target>15</target> <!-- maven.compiler.target -->
</configuration>
</plugin>
</plugins>
</build>
</project>

I solved this problem by adding a new file system.properties and the content added to the file is java.runtime.version=11 (For me I am using JDK 11).
java.runtime.version=11

I would try focusing on why maven complains about invalid release 11 (Fatal error compiling: invalid target release: 11).
As seen in your pom.xml config you clearly intend to use version 15, so I would suggest to investigate why there is a problem with version 11.
Check $JAVA_HOME environment variable, system.properties file, etc.
Also try debug route suggested in official docs or a Q&A on a similar topic.

You must use the specific version of Java supported by Heroku. The following versions supported are:
Java 7 - 1.7.0_292
Java 8 - 1.8.0_282
Java 11 - 11.0.10
Java 13 - 13.0.6
Java 15 - 15.0.2
Set a java.runtime.version property of the system.properties file, create a system.properties file if one does not already exist.
java.runtime.version = SUPPORTED_VERSION
Read more in heroku-java-support

This is what I have experienced today.
I have been using jdk 1.8, and then have to install jdk 1.11.
But, after running mvnw through my shell script file dep.sh, it failed to build jar.
#!/bin/bash
MVN=$(pwd)/mvnw
echo "[1/2] Building app.jar ..."
$MVN clean package -Dmaven.test.skip=true
dep.sh calls mvnw script file with goal clan package
Error
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile
(default-compile) on project dictation:
Fatal error compiling: invalid target release: 11 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
My pom.xml is configured with jdk 1.11. But it does not solve the build error.
<project ...>
<properties>
<java.version>11</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>11</source><!-- 1.11 not working -->
<target>11</target><!-- 1.11 not working -->
</configuration>
</plugin>
</plugins>
</build>
</project>
build failure
When I installed jdk 1.8, JAVA_HOME was set to /my/jdk/1.8/dir, which is used for bundling jar.
I set JAVA_HOME to /my/jdk/1.111/dir in dep.sh, it works without error.
#!/bin/bash
JAVA_HOME="/C/Program Files/Java/jdk-11.0.9"
MVN=$(pwd)/mvnw
echo "[1/2] Building app.jar ..."
$MVN clean package -Dmaven.test.skip=true

create system.properties file and Add java.runtime.version=11

Shippable "Failed to execute goal org.codehaus.mojo:cobertura-maven-plugin:2.7:instrument"

I am currently doing a software engineering module where we learn about CI and TDD. As an assignment we must create a Java project using maven, JUnit, and Shippable. My files include three java classes (Student, Course, and Module classes) and a simple test for each that tests getters and setters.
I am using:
Apache NetBeans 12.0
Maven (default is 3.6.3 but I added a plugin for 3.8)
Openjdk11
My pom 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.nuig</groupId>
<artifactId>assignment1</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/joda-time/joda-time -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.10.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<name>assignment1</name>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>11</release> <!--or <release>10</release>-->
</configuration>
</plugin>
</plugins>
</build>
</project>
And shippable.yml file:
language: java
jdk:
- openjdk11
after_success:
- mvn clean verify
- mvn clean cobertura:cobertura
- mvn test
When I build the code in netbeans, it builds and passes the tests fine. But once I push and go to shippable console, it keeps failing at mvn clean cobertura:cobertura with the following error:
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.165 s
[INFO] Finished at: 2020-10-11T00:26:35Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:cobertura-maven-plugin:2.7:instrument (default-cli) on project assignment1: Execution default-cli of goal org.codehaus.mojo:cobertura-maven-plugin:2.7:instrument failed: Plugin org.codehaus.mojo:cobertura-maven-plugin:2.7 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:0 at specified path /usr/lib/jvm/java-11-openjdk-amd64/../lib/tools.jar -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
I am really unfamiliar with all these technologies and I have already tried several suggestions from answers to similar questions but to no vail.
Would anyone be able to help with this issue? Much appreciated.

Maven error "Cannot resolve project dependencies:" -- "org.eclipse.jst.web_sdk.feature.feature.group"

I was following the instructions at Import into Eclipse and Set up Development Environment when I got to the step that says
Run the setup.sh script if you havn't created the target platform: sh setup.sh.
It is to be run in terminal on macOS.
I received the following error messages:
[ERROR] Cannot resolve project dependencies:
[ERROR] Software being installed: com.amazonaws.eclipse.devide raw:1.0.0.'SNAPSHOT'/format(n[.n=0;[.n=0;[-S]]]):1.0.0-SNAPSHOT
[ERROR] Missing requirement: com.amazonaws.eclipse.devide raw:1.0.0.'SNAPSHOT'/format(n[.n=0;[.n=0;[-S]]]):1.0.0-SNAPSHOT requires 'org.eclipse.jst.web_sdk.feature.feature.group 0.0.0' but it could not be found
[ERROR]
[ERROR] See http://wiki.eclipse.org/Tycho/Dependency_Resolution_Troubleshooting for help.
[ERROR] Cannot resolve dependencies of MavenProject: com.amazonaws.eclipse:com.amazonaws.eclipse.devide:1.0.0-SNAPSHOT # /Users/shinehah/git/aws-toolkit-eclipse-java-ee-and-report/releng/com.amazonaws.eclipse.devide/pom.xml: See log for details -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MavenExecutionException
It looks like I need to add "org.eclipse.jst.web_sdk.feature.feature.group" as a dependency, but I'm not able to find that module to download.
This is what is in the pom.xml file originally:
<project>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.amazonaws.eclipse</groupId>
<artifactId>com.amazonaws.eclipse.releng</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>com.amazonaws.eclipse.devide</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>eclipse-repository</packaging>
<build>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-p2-repository-plugin</artifactId>
<version>${tycho.version}</version>
<configuration>
<includeAllDependencies>true</includeAllDependencies>
</configuration>
</plugin>
</plugins>
</build>
</project>
This is the pom.xml file after I added content to it:
<project>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.amazonaws.eclipse</groupId>
<artifactId>com.amazonaws.eclipse.releng</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>com.amazonaws.eclipse.devide</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>eclipse-repository</packaging>
<dependencies>
<dependency>
<groupId>com.amazonaws.eclipse</groupId>
<artifactId>org.eclipse.jst.web_sdk.feature.feature.group</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-p2-repository-plugin</artifactId>
<version>${tycho.version}</version>
<configuration>
<includeAllDependencies>true</includeAllDependencies>
</configuration>
</plugin>
</plugins>
</build>
</project>
This is a screenshot of the Project Explorer in Eclipse. I don't have any projects, just this workspace.
This is the pane titled "Markers" at the bottom of the Eclipse IDE:
What do I need to do to successfully run "sh setup.sh" as the step instructs?

This project is different from other project. it is an eclipse plugin project. First of all, after cloning this project, go to command prompt pointing to the directory of this plugin project and run the following command.
mvn clean package.
Once the build is successful, import as plugin project in eclipse. This is the normal way of importing eclipse plugin project. It is recommended to go through the ReadMe.md file in the github link. https://github.com/aws/aws-toolkit-eclipse
I will suggest, first go through the following helpful links about tycho and how to configure and develop eclipse plugin.
https://wiki.eclipse.org/Developing_Tycho
https://www.vogella.com/tutorials/EclipseTycho/article.html
You can also refer to the following stackoverflow link.
Dependencies from pom.xml not considered by Eclipse in Tycho Project

Releasing a java based git project using maven release command

I have a Git project on Bitbucket and I am trying to release it using mvn release:prepare command but I am getting following exception.
I understand that it is asking for my password but not sure where and how to specify it.
Error Log:
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 20.355 s
[INFO] Finished at: 2015-10-20T12:17:04-04:00
[INFO] Final Memory: 13M/166M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-release-plugin:2.3.2:prepare (default-cli) on project git-cicd-demo: Unable to tag SCM
[ERROR] Provider message:
[ERROR] The git-push command failed.
[ERROR] Command output:
[ERROR] bash: /dev/tty: No such device or address
[ERROR] error: failed to execute prompt script (exit code 1)
[ERROR] fatal: could not read Password for 'https://nitalchandel#bitbucket.org': Invalid argument
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
pom.xml
<?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.study.git.cicd</groupId>
<artifactId>git-cicd-demo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<!-- VCS integration -->
<scm>
<connection>scm:git:https://nitalchandel#bitbucket.org/nitalchandel/git-cicd-demo.git</connection>
<url>https://nitalchandel#bitbucket.org/nitalchandel/git-cicd-demo</url>
<developerConnection>scm:git:https://nitalchandel#bitbucket.org/nitalchandel/git-cicd-demo.git</developerConnection>
</scm>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.5.201505241946</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

You should be able to specify your password on the command line:
mvn release:prepare -Dpassword=qwerty ...
See here for the full set of options for release:prepare.

Failed to collect Maven dependencies in Java HelloWorld when deploying to heroku

I'm playing with Java and heroku following the heroku guide.
But with few modifications. In this case I use JDK 1.7, Jetty 8.1.2.v20120308 and Maven dependencies plugin 2.7 (Because it seems, 2.4 couldn't be built)
All is built ok locally with
mvn package
but when I use
git push heroku master
to deploy on heroku, I get this message:
[ERROR] Failed to execute goal on project helloart: Could not resolve dep
endencies for project main.java:helloart:jar:1.0-SNAPSHOT: Failed to collect dep
endencies for [org.eclipse.jetty:jetty-servlet:jar:8.1.2.v20120308 (compile), ja
vax.servlet:servlet-api:jar:2.5 (compile)]: Failed to read artifact descriptor f
or org.eclipse.jetty:jetty-servlet:jar:8.1.2.v20120308: Could not transfer artif
act org.eclipse.jetty:jetty-parent:pom:19 from/to centralMirror (http://s3posito
ry.heroku.com/jvm/): Error transferring file: Server returned HTTP response code
: 503 for URL: http://s3pository.heroku.com/jvm/org/eclipse/jetty/jetty-parent/1
9/jetty-parent-19.pom -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the
-e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, ple
ase read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/Depende
ncyResolutionException
! Failed to build app with Maven
! Heroku push rejected, failed to compile Java app
To git#heroku.com:aqueous-castle-5897.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git#heroku.com:aqueous-castle-5897.git'
I read about the error at http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException, but it seems I must configure a settings.xml file (on heroku?) If this is the solution, how could I do it?
If not... any other idea?
This is my pom.xml
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>main.java</groupId>
<version>1.0-SNAPSHOT</version>
<artifactId>helloart</artifactId>
<dependencies>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
<version>8.1.2.v20120308</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals><goal>copy-dependencies</goal></goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
This is my system.properties
java.runtime.version=1.7
Thank you!
Have a nice day!

Since the pom seems to be in maven central, this sounds like a heroku issue that you should contact heroku support on. You can open a ticket to Heroku support at https://help.heroku.com/.