clean up unused import & do not import *

src/main/java/org/csanchez/jenkins/plugins/kubernetes/ContainerLivenessProbe.java

@@ -3,10 +3,9 @@
 import hudson.Extension;
 import hudson.model.AbstractDescribableImpl;
 import hudson.model.Descriptor;
-import hudson.util.FormValidation;
 import org.jenkinsci.Symbol;
 import org.kohsuke.stapler.DataBoundConstructor;
-import org.kohsuke.stapler.QueryParameter;
+
 import java.io.Serializable;
 
 /**

src/main/java/org/csanchez/jenkins/plugins/kubernetes/ContainerTemplate.java

@@ -26,7 +26,6 @@
 import jenkins.model.Jenkins;
 import org.kohsuke.stapler.QueryParameter;
 
-import javax.annotation.Nonnull;
 
 public class ContainerTemplate extends AbstractDescribableImpl<ContainerTemplate> implements Serializable {
 

src/main/java/org/csanchez/jenkins/plugins/kubernetes/InProvisioning.java

@@ -10,7 +10,6 @@
 import hudson.ExtensionList;
 import hudson.ExtensionPoint;
 import hudson.model.Label;
-import hudson.model.Node;
 
 /**
  * Collects the Kubernetes agents currently in provisioning.

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubectlBuildWrapper.java

@@ -36,12 +36,9 @@
 import org.kohsuke.stapler.QueryParameter;
 
 import javax.annotation.Nonnull;
-import java.io.BufferedReader;
 import java.io.InputStream;
-import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.io.IOException;
-import java.nio.charset.StandardCharsets;
 import java.security.Key;
 import java.security.KeyStore;
 import java.security.KeyStoreException;
@@ -51,7 +48,6 @@
 import java.security.cert.X509Certificate;
 import java.util.Collections;
 import java.util.Set;
-import java.util.stream.Collectors;
 
 import static com.google.common.collect.Sets.newHashSet;
 

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesCloud.java

@@ -1,6 +1,5 @@
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import static java.nio.charset.StandardCharsets.*;
 
 import java.io.IOException;
 import java.net.ConnectException;
@@ -71,6 +70,7 @@
 import io.fabric8.kubernetes.client.KubernetesClientException;
 import jenkins.model.Jenkins;
 import jenkins.model.JenkinsLocationConfiguration;
+import static java.nio.charset.StandardCharsets.UTF_8;
 
 /**
  * Kubernetes cloud provider.

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesFactoryAdapter.java

@@ -1,10 +1,7 @@
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import static java.nio.charset.StandardCharsets.*;
 
-import java.io.BufferedReader;
 import java.io.InputStream;
-import java.io.InputStreamReader;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.security.Key;
@@ -15,9 +12,7 @@
 import java.security.cert.CertificateEncodingException;
 import java.security.cert.X509Certificate;
 import java.util.Collections;
-import static java.util.logging.Level.*;
 import java.util.logging.Logger;
-import java.util.stream.Collectors;
 
 import javax.annotation.CheckForNull;
 
@@ -46,6 +41,10 @@
 import org.kohsuke.accmod.Restricted;
 import org.kohsuke.accmod.restrictions.NoExternalUse;
 
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.logging.Level.FINE;
+
 /**
  * @author <a href="mailto:nicolas.deloof@gmail.com">Nicolas De Loof</a>
  *

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesLauncher.java

@@ -24,7 +24,6 @@
 
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import static java.util.logging.Level.*;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -53,6 +52,7 @@
 import io.fabric8.kubernetes.client.Watch;
 import io.fabric8.kubernetes.client.dsl.LogWatch;
 import io.fabric8.kubernetes.client.dsl.PrettyLoggable;
+import static java.util.logging.Level.INFO;
 
 /**
  * Launches on Kubernetes the specified {@link KubernetesComputer} instance.

src/main/java/org/csanchez/jenkins/plugins/kubernetes/PodTemplateBuilder.java

@@ -24,9 +24,6 @@
 
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import static org.csanchez.jenkins.plugins.kubernetes.KubernetesCloud.*;
-import static org.csanchez.jenkins.plugins.kubernetes.PodTemplateUtils.*;
-
 import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -71,6 +68,9 @@
 import io.fabric8.kubernetes.api.model.VolumeBuilder;
 import io.fabric8.kubernetes.api.model.VolumeMount;
 import io.fabric8.kubernetes.api.model.VolumeMountBuilder;
+import static org.csanchez.jenkins.plugins.kubernetes.KubernetesCloud.JNLP_NAME;
+import static org.csanchez.jenkins.plugins.kubernetes.PodTemplateUtils.combine;
+import static org.csanchez.jenkins.plugins.kubernetes.PodTemplateUtils.substituteEnv;
 
 /**
  * Helper class to build Pods from PodTemplates

src/main/java/org/csanchez/jenkins/plugins/kubernetes/PodTemplateUtils.java

@@ -1,10 +1,5 @@
 package org.csanchez.jenkins.plugins.kubernetes;
 
-import static hudson.Util.*;
-import static java.nio.charset.StandardCharsets.*;
-import static java.util.stream.Collectors.*;
-import static org.csanchez.jenkins.plugins.kubernetes.ContainerTemplate.*;
-
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -65,6 +60,12 @@
 import io.fabric8.kubernetes.client.KubernetesClient;
 import io.fabric8.kubernetes.client.KubernetesClientException;
 
+import static hudson.Util.replaceMacro;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.stream.Collectors.toList;
+import static java.util.stream.Collectors.toMap;
+import static org.csanchez.jenkins.plugins.kubernetes.ContainerTemplate.DEFAULT_WORKING_DIR;
+
 public class PodTemplateUtils {
 
     private static final Logger LOGGER = Logger.getLogger(PodTemplateUtils.class.getName());

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/ContainerExecDecorator.java

@@ -16,7 +16,6 @@
 
 package org.csanchez.jenkins.plugins.kubernetes.pipeline;
 
-import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.*;
 
 import java.io.ByteArrayOutputStream;
 import java.io.Closeable;
@@ -58,6 +57,8 @@
 import io.fabric8.kubernetes.client.dsl.ExecWatch;
 import io.fabric8.kubernetes.client.dsl.Execable;
 import okhttp3.Response;
+import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.EXIT;
+import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.NEWLINE;
 
 /**
  * This decorator interacts directly with the Kubernetes exec API to run commands inside a container. It does not use

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/ContainerExecProc.java

@@ -1,6 +1,5 @@
 package org.csanchez.jenkins.plugins.kubernetes.pipeline;
 
-import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.*;
 
 import java.io.ByteArrayOutputStream;
 import java.io.Closeable;
@@ -21,6 +20,9 @@
 import hudson.Proc;
 import io.fabric8.kubernetes.client.dsl.ExecWatch;
 import jenkins.util.Timer;
+import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.CTRL_C;
+import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.EXIT;
+import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Constants.NEWLINE;
 
 /**
  * Handle the liveness of the processes executed in containers, wait for them to finish and process exit codes.

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/ContainerLogStepExecution.java

@@ -19,16 +19,23 @@
 import hudson.model.TaskListener;
 import hudson.util.LogTaskListener;
 import io.fabric8.kubernetes.client.KubernetesClient;
-import io.fabric8.kubernetes.client.dsl.*;
+import io.fabric8.kubernetes.client.dsl.ContainerResource;
+import io.fabric8.kubernetes.client.dsl.ExecWatch;
+import io.fabric8.kubernetes.client.dsl.LogWatch;
+import io.fabric8.kubernetes.client.dsl.PrettyLoggable;
+import io.fabric8.kubernetes.client.dsl.TailPrettyLoggable;
+import io.fabric8.kubernetes.client.dsl.TimeTailPrettyLoggable;
 import org.jenkinsci.plugins.workflow.steps.StepContext;
 import org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution;
 
-import java.io.*;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import java.io.PrintStream;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import static org.csanchez.jenkins.plugins.kubernetes.pipeline.Resources.closeQuietly;
-
 public class ContainerLogStepExecution extends SynchronousNonBlockingStepExecution<String> {
     private static final long serialVersionUID = 5588861066775717487L;
     private static final transient Logger LOGGER = Logger.getLogger(ContainerLogStepExecution.class.getName());

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/EvictingQueue.java

@@ -16,7 +16,6 @@
 
 package org.csanchez.jenkins.plugins.kubernetes.pipeline;
 
-import static com.google.common.base.Preconditions.*;
 
 import java.io.Serializable;
 import java.util.ArrayDeque;
@@ -29,6 +28,9 @@
 import com.google.common.collect.ForwardingQueue;
 import com.google.common.collect.Iterables;
 
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
  * COPIED FROM GUAVA until it is upgraded in Jenkins core
  * 

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/KubernetesDeclarativeAgent.java

@@ -2,7 +2,6 @@
 
 import org.apache.commons.lang.StringUtils;
 import org.csanchez.jenkins.plugins.kubernetes.ContainerTemplate;
-import org.csanchez.jenkins.plugins.kubernetes.KubernetesCloud;
 import org.jenkinsci.Symbol;
 import org.jenkinsci.plugins.pipeline.modeldefinition.agent.DeclarativeAgent;
 import org.jenkinsci.plugins.pipeline.modeldefinition.agent.DeclarativeAgentDescriptor;

src/main/java/org/csanchez/jenkins/plugins/kubernetes/pipeline/PodTemplateStepExecution.java

@@ -1,6 +1,6 @@
 package org.csanchez.jenkins.plugins.kubernetes.pipeline;
 
-import static java.util.stream.Collectors.*;
+import static java.util.stream.Collectors.toList;
 
 import java.util.HashSet;
 import java.util.Set;

src/main/java/org/csanchez/jenkins/plugins/kubernetes/volumes/HostPathVolume.java

@@ -29,7 +29,6 @@
 
 import hudson.Extension;
 import hudson.model.Descriptor;
-import io.fabric8.kubernetes.api.model.HostPathVolumeSource;
 import io.fabric8.kubernetes.api.model.Volume;
 import io.fabric8.kubernetes.api.model.VolumeBuilder;