diff --git a/test/groovy/ArtifactSetVersionTest.groovy b/test/groovy/ArtifactSetVersionTest.groovy
index 139a3d90e..8748a7035 100644
--- a/test/groovy/ArtifactSetVersionTest.groovy
+++ b/test/groovy/ArtifactSetVersionTest.groovy
@@ -51,7 +51,7 @@ class ArtifactSetVersionTest extends BasePiperTest {
     private JenkinsShellCallRule shellRule = new JenkinsShellCallRule(this)
     private JenkinsWriteFileRule jwfr = new JenkinsWriteFileRule(this)
     private JenkinsStepRule stepRule = new JenkinsStepRule(this)
-    private JenkinsEnvironmentRule jer = new JenkinsEnvironmentRule(this)
+    private JenkinsEnvironmentRule environmentRule = new JenkinsEnvironmentRule(this)
 
     @Rule
     public RuleChain ruleChain = Rules
@@ -64,7 +64,7 @@ class ArtifactSetVersionTest extends BasePiperTest {
         .around(jwfr)
         .around(dockerExecuteRule)
         .around(stepRule)
-        .around(jer)
+        .around(environmentRule)
 
     @Before
     void init() throws Throwable {
@@ -88,8 +88,8 @@ class ArtifactSetVersionTest extends BasePiperTest {
     void testVersioning() {
         stepRule.step.artifactSetVersion(script: stepRule.step, juStabGitUtils: gitUtils, buildTool: 'maven', gitSshUrl: 'myGitSshUrl')
 
-        assertEquals('1.2.3-20180101010203_testCommitId', jer.env.getArtifactVersion())
-        assertEquals('testCommitId', jer.env.getGitCommitId())
+        assertEquals('1.2.3-20180101010203_testCommitId', environmentRule.env.getArtifactVersion())
+        assertEquals('testCommitId', environmentRule.env.getGitCommitId())
 
         assertThat(shellRule.shell, hasItem("mvn --file 'pom.xml' --batch-mode -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn versions:set -DnewVersion=1.2.3-20180101010203_testCommitId -DgenerateBackupPoms=false"))
         assertThat(shellRule.shell.join(), stringContainsInOrder([
@@ -105,7 +105,7 @@ class ArtifactSetVersionTest extends BasePiperTest {
     void testVersioningWithoutCommit() {
         stepRule.step.artifactSetVersion(script: stepRule.step, juStabGitUtils: gitUtils, buildTool: 'maven', commitVersion: false)
 
-        assertEquals('1.2.3-20180101010203_testCommitId', jer.env.getArtifactVersion())
+        assertEquals('1.2.3-20180101010203_testCommitId', environmentRule.env.getArtifactVersion())
         assertThat(shellRule.shell, hasItem("mvn --file 'pom.xml' --batch-mode -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn versions:set -DnewVersion=1.2.3-20180101010203_testCommitId -DgenerateBackupPoms=false"))
         assertThat(shellRule.shell, not(hasItem(containsString('commit'))))
     }
@@ -120,7 +120,7 @@ class ArtifactSetVersionTest extends BasePiperTest {
     @Test
     void testVersioningWithTimestamp() {
         stepRule.step.artifactSetVersion(script: stepRule.step, juStabGitUtils: gitUtils, buildTool: 'maven', timestamp: '2018')
-        assertEquals('1.2.3-2018_testCommitId', jer.env.getArtifactVersion())
+        assertEquals('1.2.3-2018_testCommitId', environmentRule.env.getArtifactVersion())
     }
 
     @Test
@@ -133,15 +133,15 @@ class ArtifactSetVersionTest extends BasePiperTest {
     @Test
     void testVersioningWithCustomTemplate() {
         stepRule.step.artifactSetVersion(script: stepRule.step, juStabGitUtils: gitUtils, buildTool: 'maven', versioningTemplate: '${version}-xyz')
-        assertEquals('1.2.3-xyz', jer.env.getArtifactVersion())
+        assertEquals('1.2.3-xyz', environmentRule.env.getArtifactVersion())
     }
 
     @Test
     void testVersioningWithTypeAppContainer() {
         nullScript.commonPipelineEnvironment.setAppContainerProperty('gitSshUrl', 'git@test.url')
-        jer.env.setArtifactVersion('1.2.3-xyz')
+        environmentRule.env.setArtifactVersion('1.2.3-xyz')
         stepRule.step.artifactSetVersion(script: stepRule.step, juStabGitUtils: gitUtils, buildTool: 'docker', artifactType: 'appContainer', dockerVersionSource: 'appVersion')
-        assertEquals('1.2.3-xyz', jer.env.getArtifactVersion())
+        assertEquals('1.2.3-xyz', environmentRule.env.getArtifactVersion())
         assertEquals('1.2.3-xyz', jwfr.files['VERSION'])
     }
 
diff --git a/test/groovy/CloudFoundryDeployTest.groovy b/test/groovy/CloudFoundryDeployTest.groovy
index cbb3db108..735fa7f92 100644
--- a/test/groovy/CloudFoundryDeployTest.groovy
+++ b/test/groovy/CloudFoundryDeployTest.groovy
@@ -33,7 +33,7 @@ class CloudFoundryDeployTest extends BasePiperTest {
     private JenkinsWriteFileRule jwfr = new JenkinsWriteFileRule(this)
     private JenkinsDockerExecuteRule jedr = new JenkinsDockerExecuteRule(this)
     private JenkinsStepRule stepRule = new JenkinsStepRule(this)
-    private JenkinsEnvironmentRule jer = new JenkinsEnvironmentRule(this)
+    private JenkinsEnvironmentRule environmentRule = new JenkinsEnvironmentRule(this)
     private JenkinsReadYamlRule readYamlRule = new JenkinsReadYamlRule(this)
 
     private writeInfluxMap = [:]
@@ -53,7 +53,7 @@ class CloudFoundryDeployTest extends BasePiperTest {
         .around(shellRule)
         .around(jwfr)
         .around(jedr)
-        .around(jer)
+        .around(environmentRule)
         .around(new JenkinsCredentialsRule(this).withCredentials('test_cfCredentialsId', 'test_cf', '********'))
         .around(stepRule) // needs to be activated after jedr, otherwise executeDocker is not mocked
 
diff --git a/test/groovy/GaugeExecuteTestsTest.groovy b/test/groovy/GaugeExecuteTestsTest.groovy
index 4fed21c9b..f369f37e5 100644
--- a/test/groovy/GaugeExecuteTestsTest.groovy
+++ b/test/groovy/GaugeExecuteTestsTest.groovy
@@ -13,7 +13,7 @@ class GaugeExecuteTestsTest extends BasePiperTest {
     private JenkinsStepRule stepRule = new JenkinsStepRule(this)
     private JenkinsLoggingRule loggingRule = new JenkinsLoggingRule(this)
     private JenkinsShellCallRule shellRule = new JenkinsShellCallRule(this)
-    private JenkinsEnvironmentRule jer = new JenkinsEnvironmentRule(this)
+    private JenkinsEnvironmentRule environmentRule = new JenkinsEnvironmentRule(this)
     private ExpectedException thrown = ExpectedException.none()
 
     @Rule
@@ -22,7 +22,7 @@ class GaugeExecuteTestsTest extends BasePiperTest {
         .around(new JenkinsReadYamlRule(this))
         .around(shellRule)
         .around(loggingRule)
-        .around(jer)
+        .around(environmentRule)
         .around(stepRule)
         .around(thrown)
 
diff --git a/test/groovy/KarmaExecuteTestsTest.groovy b/test/groovy/KarmaExecuteTestsTest.groovy
index d49598f0c..fcce88c4a 100644
--- a/test/groovy/KarmaExecuteTestsTest.groovy
+++ b/test/groovy/KarmaExecuteTestsTest.groovy
@@ -13,7 +13,7 @@ class KarmaExecuteTestsTest extends BasePiperTest {
     private JenkinsStepRule stepRule = new JenkinsStepRule(this)
     private JenkinsLoggingRule loggingRule = new JenkinsLoggingRule(this)
     private JenkinsShellCallRule shellRule = new JenkinsShellCallRule(this)
-    private JenkinsEnvironmentRule jer = new JenkinsEnvironmentRule(this)
+    private JenkinsEnvironmentRule environmentRule = new JenkinsEnvironmentRule(this)
     private ExpectedException thrown = ExpectedException.none()
 
     @Rule
@@ -22,7 +22,7 @@ class KarmaExecuteTestsTest extends BasePiperTest {
         .around(new JenkinsReadYamlRule(this))
         .around(shellRule)
         .around(loggingRule)
-        .around(jer)
+        .around(environmentRule)
         .around(stepRule)
         .around(thrown)
 
diff --git a/test/groovy/PipelineRestartStepsTest.groovy b/test/groovy/PipelineRestartStepsTest.groovy
index f9acb9a7a..6d4c471fc 100644
--- a/test/groovy/PipelineRestartStepsTest.groovy
+++ b/test/groovy/PipelineRestartStepsTest.groovy
@@ -11,14 +11,14 @@ import static org.junit.Assert.assertThat
 
 class PipelineRestartStepsTest extends BasePiperTest {
 
-    private JenkinsErrorRule jer = new JenkinsErrorRule(this)
+    private JenkinsErrorRule errorRule = new JenkinsErrorRule(this)
     private JenkinsLoggingRule loggingRule = new JenkinsLoggingRule(this)
     private JenkinsStepRule stepRule = new JenkinsStepRule(this)
 
     @Rule
     public RuleChain chain = Rules.getCommonRules(this)
         .around(new JenkinsReadYamlRule(this))
-        .around(jer)
+        .around(errorRule)
         .around(loggingRule)
         .around(stepRule)