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Reading properties files "inStream parameter is null"

I have read property files before and I realize there are many links on the topic but I think my properties file is not getting packaged correctly due to plug-ins. My Eclipse project has a properties file in src/main/resources called environment.properties. I have tried reading it through a method, even trying to declare the method as both static and non-static at different times:
static Properties properties = new Properties();
public void getClassPathProperties() {
LOGGER.debug("getClassPathProperties Enter");
try (final InputStream input = Utils.class.getClassLoader().getResourceAsStream("environment.properties")) {
properties.load(input);
LOGGER.debug("properties found:");
for (Object key : properties.keySet()) {
LOGGER.debug("" + ((String) key) + "=" + properties.getProperty((String) key));
}
} catch (Exception e) {
LOGGER.error("Unable to find environment.properties on classpath to Utils.class");
e.printStackTrace();
}
LOGGER.debug("getClassPathProperties Exit");
}
I tried the static declaration first but also tried non-static when a few posts mentioned it works until being declared as a static. I have also tried placing the environment.properties file manually within the the JAR file in different places without success. From Eclipse the exception is:
14:33:52.676 [main] ERROR com.goprecise.ams.handlers.utils.Utils - Unable to find environment.properties on classpath to Utils.class
java.lang.NullPointerException: inStream parameter is null
at java.base/java.util.Objects.requireNonNull(Objects.java:246)
at java.base/java.util.Properties.load(Properties.java:403)
and from the Maven command line an NPE on Properties.load() is reported (the LOGGER.error() message is from the code shown). The pom.xml is:
<?xml version="1.0"?>
... header ...
<properties>
<version.org.kie>7.48.0.Final-redhat-00004</version.org.kie>
<version.org.powermock>1.7.4</version.org.powermock>
<version.junit>4.12</version.junit>
<version.org.slf4j>1.7.26</version.org.slf4j>
<java.module.name>${project.name}</java.module.name>
</properties>
<dependencyManagement>
<dependencies>
... depeendencies
</dependencies>
</dependencyManagement>
<dependencies>
... many more dependencies
</dependencies>
<build>
<sourceDirectory>${project.build.directory}/generated-sources/java</sourceDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>false</filtering>
<includes>
<include>*.png</include>
</includes>
</resource>
<resource>
<directory>${project.build.directory}/maven-shared-archive-resources</directory>
<filtering>true</filtering>
<includes>
<include>*.part</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>templating-maven-plugin</artifactId>
<version>1.0.0</version>
<executions>
<execution>
<id>filter-src</id>
<goals>
<goal>filter-sources</goal>
</goals>
<configuration>
<sourceDirectory>${basedir}/src/main/java</sourceDirectory>
<outputDirectory>${project.build.directory}/generated-sources/java</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<id>copy-repository-resources</id>
<phase>compile</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<encoding>UTF-8</encoding>
<resources>
<resource>
<directory>target/generated-sources/annotations</directory>
<includes>
<include>repoindex.html</include>
<include>*.wid</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
<outputDirectory>target/classes</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<annotationProcessors>
<annotationProcessor>org.jbpm.process.workitem.core.util.WidProcessor</annotationProcessor>
</annotationProcessors>
<compilerArgs>
<arg>-AwidName=${project.artifactId}</arg>
<arg>-AgenerateTemplates=true</arg>
<arg>-AgenerateWids=true</arg>
<arg>-AwidsResources=${project.artifactId}.wid:widtemplate.st</arg>
<arg>-AtemplateResources=kie-deployment-descriptor.xml:kie-ddtemplate.st,serviceinfo.json:serviceinfo.st,repoindex.html:repoindex.part,index.html:indextemplate.st,${project.artifactId}.bpmn2:defaultprocess.st</arg>
</compilerArgs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.3.0</version>
<configuration>
<!-- root module has no assembly so ignore it -->
<ignoreMissingDescriptor>true</ignoreMissingDescriptor>
<descriptors>
<descriptor>${project.basedir}/assembly/assembly.xml</descriptor>
</descriptors>
<archive>
<addMavenDescriptor>false</addMavenDescriptor>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.22.2</version>
<executions>
<execution>
<id>integration-test-execution</id>
<phase>verify</phase>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<groupId>${project.groupId}</groupId>
<artifactId>${project.artifactId}</artifactId>
<version>${project.version}</version>
<builddir>${project.build.directory}</builddir>
</systemPropertyVariables>
<failIfNoTests>false</failIfNoTests>
<test>${it.test}</test>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
<argLine>${failsafe.arg.line}</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.commonjava.maven.plugins</groupId>
<artifactId>project-sources-maven-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<id>project-sources</id>
<goals>
<goal>archive</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
<configuration>
<includes>
<include>**/*Test.java</include>
</includes>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
</excludes>
<argLine>-Xmx1024m -Dfile.encoding=UTF-8</argLine>
<systemPropertyVariables>
<apple.awt.UIElement>true</apple.awt.UIElement>
<org.uberfire.nio.git.daemon.enabled>false</org.uberfire.nio.git.daemon.enabled>
<org.uberfire.nio.git.ssh.enabled>false</org.uberfire.nio.git.ssh.enabled>
<org.uberfire.sys.repo.monitor.disabled>true</org.uberfire.sys.repo.monitor.disabled>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<id>default-jar</id>
</execution>
<!-- No OSGi manifestEntries for <goal>jar</goal>: if it supported, then felix has already added them -->
<execution>
<id>test-jar</id>
<goals>
<goal>test-jar</goal>
</goals>
<configuration>
<skipIfEmpty>true</skipIfEmpty>
<excludes>
<exclude>**/logback-test.xml</exclude>
<exclude>**/jndi.properties</exclude>
</excludes>
<archive>
<manifestEntries>
<Bundle-SymbolicName>${java.module.name}.tests</Bundle-SymbolicName>
<Bundle-Version>
${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}.${osgi.snapshot.qualifier}
</Bundle-Version>
<Bundle-Name>${project.name}</Bundle-Name>
<Bundle-Vendor>${project.organization.name}</Bundle-Vendor>
</manifestEntries>
</archive>
</configuration>
</execution>
</executions>
<configuration>
<archive>
<manifest>
<addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-remote-resources-plugin</artifactId>
<version>1.5</version>
<configuration>
<resourceBundles>
<resourceBundle>org.jbpm.contrib:template-resources:${version.org.kie}</resourceBundle>
</resourceBundles>
</configuration>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
I want the code in the JAR to find the properties at run-time: if the property file does not belong in src/main/resources (the typical place) where does it belong? If a plug-in is interfering with this how can I configure the plugin to enable my reading properties (or would simply moving the file enable it to be read)?

It's the declaration:
<resource>
<directory>src/main/resources</directory>
...
<includes>
<include>*.png</include> <!-- just this one isn't enough -->
</includes>
</resource>
If you (re-)declare the resources explicitely it's not cummulative with the defaults, i.e. the defaults are overriden. Have a look at your target/classes and you will find just PNG images there.
See resources:[testR|r]esources:
Always uses the project.build.[testR|r]esources element to specify the resources to copy.
and POM Reference, Super POM:
<project>
...
<build>
...
<resources>
<resource>
<directory>${project.basedir}/src/main/resources</directory>
</resource>
</resources>
<testResources>
<testResource>
<directory>${project.basedir}/src/test/resources</directory>
</testResource>
</testResources>
which means: Take all from these dirs by default but take nothing from these dirs if overridden (unless you include it when overriding).

So the property file also needs to be added to src/test/java because it is being called from test cases. Two separate JARs are actually created in the target directory:
ams-pam-workitemhandlers-2.0.1.1.jar
ams-pam-workitemhandlers-2.0.1.1-tests.jar
I think the application will find the resource file in src/main/resources or I will have to move it out but the test cases definitely find it in src/test/resources.

Bind a file inside a maven built EAR

Below is my project structure.
I require to copy a file from the location \MainProject\src\non-packaged-resources to the \MainProject\sub-project2\sub-project2-web\src\main\resources location on building the MainProject.
Below is the build section of the pom file of my sub-project2-web but the file is not copied while building.
<build>
<finalName>sub-project2-web</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<warSourceExcludes>**/.copyarea.db</warSourceExcludes>
<packagingExcludes>**/.copyarea.db</packagingExcludes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>copy-resources</id>
<!-- here the phase you need -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>/src/main/resources</outputDirectory>
<resources>
<resource>
<directory>/src/non-packaged-resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
When observing the build log, it skips the file being copied with the below error
skip non existing resourceDirectory
But the maven build gets successful.
Goal is to bind the file which exists inside the \MainProject\src\non-packaged-resources to all the ears (sub-project1.ear, sub-project2.ear) on building the maven project. First I am trying to test this in the sub-project2-web only.
Please advice on how to provide correct paths based on this requirement.
I am using maven 2.2.1 version (project is built on this.)

Define the paths with reference to your project base directory as follows.
<outputDirectory>${project.basedir}/sub-project2/sub-project2-web/src/main/resources</outputDirectory>
<directory>${project.basedir}/src/non-packaged-resources</directory>
Then add it in the pom.xml file in the maven-resources-plugin.
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>copy-resources</id>
<!-- here the phase you need -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.basedir}/sub-project2/sub-project2-web/src/main/resources</outputDirectory>
<resources>
<resource>
<directory>${project.basedir}/src/non-packaged-resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>

Based on the above answer I found the correct way to get the locations of the parent and the base directories. Below worked for me.
<build>
<finalName>sub-project2-web</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<warSourceExcludes>**/.copyarea.db</warSourceExcludes>
<packagingExcludes>**/.copyarea.db</packagingExcludes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>copy-resources</id>
<!-- here the phase you need -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.basedir}/src/main/resources</outputDirectory>
<resources>
<resource>
<directory>${project.parent.parent.basedir}/src/non-packaged-resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>

Maven - How to place a single resource file on a separate location from the other resource files?

So I created a windows batch file that i would like to include on my build using Maven. I placed it in the src/main/resources folder. When I do a mvn clean install, my resources end up on a folder named conf in the same directory as the jar file.
Basically I would like to have the windows batch file on the same directory as my jar, with my other resource files in the conf folder.
+ conf/
... my resource files
- myjar.jar
- myBatchFile.bat
here is a snippet of the maven plugin that does it:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>install</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/conf</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.csv</include>
<!-- include my batch file -->
<include>**/*.bat</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
AS EXPECTED, my batch file went inside the conf folder.
Question: Is there a way to have the batch file sit beside my jar, while all other resource files inside conf?

Try to change your configuration to the following:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>install</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/conf</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.csv</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
<execution>
<id>copy-batch</id>
<phase>install</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<!-- include my batch file -->
<include>**/*.bat</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
We are basically adding a further execution of the same plugin for the same phase which will take care of specific batch file and its copy while removing the batch inclusion from the previous execution.

Maven-resources-plugin how to execute the same phase and goal with different configuration

I have many subfolder in my src/test/resources and what I want to do is filter each subfolder with a specific filter file which resides in src/test/filters:
I tried something like this:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>default-testResources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testResources</goal>
</goals>
<configuration>
<resources>
<resource>
<outputDirectory>${basedir}/target/annonce</outputDirectory>
<directory>${basedir}/src/test/resources/annonce</directory>
<filtering>true</filtering>
</resource>
</resources>
<filters>
<filter>${basedir}/src/test/filters/annonce/filter.properties</filter>
</filters>
</configuration>
</execution>
<execution>
<id>default-testResources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testResources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/profil</outputDirectory>
<overwrite>true</overwrite>
<resources>
<resource>
<directory>${basedir}/src/test/resources/profil</directory>
<filtering>true</filtering>
</resource>
</resources>
<filters>
<filter>${basedir}/src/test/filters/profil/filter.properties</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
But I get the error that said that the id should be unique. I tried to use for the second execution copy-resources id and goal but it's not working, so I wonder if there is any ideas?

Simply change one of the ids
org.apache.maven.plugins
maven-resources-plugin
2.6
<execution>
<id>default-testAnnonce</id>
...
</execution>
<execution>
<id>default-testProfil</id>
...
</execution>
</executions>

How can I configure maven resources plugin with a few copy tasks?

I have two copy tasks that I want to do with maven-resources-plugin. For example I need to copy config.yml from src/main/resources to root folder and to copy all folder contents from /src/main/resources/examples to src/examples.
root
/src
/main
/resources --> config.yml (to root)
/examples --> all folder contents (to /src/examples)
The only one solution I've found is this:
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/config.yml</include>
</includes>
</resource>
<!-- <resource>
<directory>src/main/resources/examples</directory>
</resource> -->
</resources>
</configuration>
</execution>
</executions>
</plugin>
but I can add only one destination folder.

You can create another execution with different ID and configuration:
<execution>
<id>copy-resources-2</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
...
</configuration>
</execution>