public void writeLines(Stream<? extends CharSequence> lines, String lineSeparator)
      throws IOException {
    writeLines(lines.iterator(), lineSeparator);
  }

  private void writeLines(Iterator<? extends CharSequence> lines, String lineSeparator)
      throws IOException {
    checkNotNull(lineSeparator);

    try (Writer out = openBufferedStream()) {
      while (lines.hasNext()) {

        PrintWriter pWriter = new PrintWriter(sWriter);

        error.printStackTrace(pWriter);

        System.err.println(
                "[error] " + content.toString() + System.lineSeparator() + System.lineSeparator() + sWriter.toString());
    }

    /**
     * @see org.apache.maven.plugin.logging.Log#error(java.lang.Throwable)
     */
    public void error(Throwable error) {

        super("Goal: " + goal + " already exists in the plugin descriptor for prefix: " + goalPrefix
                + System.lineSeparator() + "Existing implementation is: " + existingImplementation
                + System.lineSeparator() + "Conflicting implementation is: " + newImplementation);
    }

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

class ToolchainsBuildingExceptionTest {
    private static final String LS = System.lineSeparator();

    @Test
    void testNoProblems() {
        ToolchainsBuildingException e = new ToolchainsBuildingException(Collections.<Problem>emptyList());

        assertEquals(
                "2 problems were encountered while building the effective model for modelId" + System.lineSeparator()
                        + "    - [ERROR] message1" + System.lineSeparator()
                        + "    - [ERROR] message2",
                msg);
    }

 * local or remote repositories.
 */
public class MultipleArtifactsNotFoundException extends ArtifactResolutionException {
    private static final String LS = System.lineSeparator();

    private final List<Artifact> resolvedArtifacts;
    private final List<Artifact> missingArtifacts;

    /**
     * @param originatingArtifact the artifact that was being resolved

                    System.lineSeparator() + "Options:",
                    options,
                    HelpFormatter.DEFAULT_LEFT_PAD,
                    HelpFormatter.DEFAULT_DESC_PAD,
                    System.lineSeparator(),
                    false);
            pw2.flush();
            for (String s : sw.toString().split(System.lineSeparator())) {
                pw.accept(s);
            }

/**
 * Common elements of artifact metadata.
 *
 */
@Deprecated
public abstract class AbstractArtifactMetadata implements ArtifactMetadata {
    private static final String LS = System.lineSeparator();

    protected Artifact artifact;

    protected AbstractArtifactMetadata(Artifact artifact) {
        this.artifact = artifact;
    }

    public boolean storedInGroupDirectory() {
        return false;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 */
@Deprecated
public class ModelValidationResult {

    /** */
    private static final String LS = System.lineSeparator();

    /** */
    private List<String> messages;

    public ModelValidationResult() {
        messages = new ArrayList<>();
    }

    public int getMessageCount() {
        return messages.size();

            if (child != null) {
                children.add(child);
            }
        }

        if (children.isEmpty()) {
            return null;
        }

        String message = System.lineSeparator()
                + "The project " + (result.getProjectId().isEmpty() ? "" : result.getProjectId() + " ")
                + "(" + result.getPomFile() + ") has "