Program: 32245
Project: 32245
Buggy source:
/** 
 * {@inheritDoc} 
 */
@Override public void execute() throws MojoExecutionException, MojoFailureException {
  try {
    checkUncommittedChanges();
    final String releaseBranches=executeGitCommandReturn("String_Node_Str","String_Node_Str","String_Node_Str" + gitFlowConfig.getReleaseBranchPrefix() + "String_Node_Str");
    String releaseVersion=null;
    if (StringUtils.isBlank(releaseBranches)) {
      throw new MojoFailureException("String_Node_Str");
    }
 else     if (StringUtils.countMatches(releaseBranches,gitFlowConfig.getReleaseBranchPrefix()) > 1) {
      throw new MojoFailureException("String_Node_Str");
    }
 else {
      releaseVersion=releaseBranches.trim().substring(releaseBranches.lastIndexOf(gitFlowConfig.getReleaseBranchPrefix()) + gitFlowConfig.getReleaseBranchPrefix().length());
    }
    if (StringUtils.isBlank(releaseVersion)) {
      throw new MojoFailureException("String_Node_Str");
    }
    gitCheckout(releaseBranches.trim());
    if (!skipTestProject) {
      mvnCleanTest();
    }
    gitCheckout(gitFlowConfig.getProductionBranch());
    gitMergeNoff(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    if (!skipTag) {
      gitTag(gitFlowConfig.getVersionTagPrefix() + releaseVersion,"String_Node_Str");
    }
    gitCheckout(gitFlowConfig.getDevelopmentBranch());
    gitMergeNoff(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    final String currentVersion=getCurrentProjectVersion();
    String nextSnapshotVersion=null;
    try {
      final DefaultVersionInfo versionInfo=new DefaultVersionInfo(currentVersion);
      nextSnapshotVersion=versionInfo.getNextVersion().getSnapshotVersionString();
    }
 catch (    VersionParseException e) {
      if (getLog().isDebugEnabled()) {
        getLog().debug(e);
      }
    }
    if (StringUtils.isBlank(nextSnapshotVersion)) {
      throw new MojoFailureException("String_Node_Str");
    }
    mvnSetVersions(nextSnapshotVersion);
    gitCommit("String_Node_Str");
    if (installProject) {
      mvnCleanInstall();
    }
    if (!keepBranch) {
      gitBranchDelete(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    }
  }
 catch (  CommandLineException e) {
    getLog().error(e);
  }
}

Fixed version (ground truth):
/** 
 * {@inheritDoc} 
 */
@Override public void execute() throws MojoExecutionException, MojoFailureException {
  try {
    checkUncommittedChanges();
    final String releaseBranches=gitFindBranches(gitFlowConfig.getReleaseBranchPrefix());
    String releaseVersion=null;
    if (StringUtils.isBlank(releaseBranches)) {
      throw new MojoFailureException("String_Node_Str");
    }
 else     if (StringUtils.countMatches(releaseBranches,gitFlowConfig.getReleaseBranchPrefix()) > 1) {
      throw new MojoFailureException("String_Node_Str");
    }
 else {
      releaseVersion=releaseBranches.trim().substring(releaseBranches.lastIndexOf(gitFlowConfig.getReleaseBranchPrefix()) + gitFlowConfig.getReleaseBranchPrefix().length());
    }
    if (StringUtils.isBlank(releaseVersion)) {
      throw new MojoFailureException("String_Node_Str");
    }
    gitCheckout(releaseBranches.trim());
    if (!skipTestProject) {
      mvnCleanTest();
    }
    gitCheckout(gitFlowConfig.getProductionBranch());
    gitMergeNoff(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    if (!skipTag) {
      gitTag(gitFlowConfig.getVersionTagPrefix() + releaseVersion,"String_Node_Str");
    }
    gitCheckout(gitFlowConfig.getDevelopmentBranch());
    gitMergeNoff(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    final String currentVersion=getCurrentProjectVersion();
    String nextSnapshotVersion=null;
    try {
      final DefaultVersionInfo versionInfo=new DefaultVersionInfo(currentVersion);
      nextSnapshotVersion=versionInfo.getNextVersion().getSnapshotVersionString();
    }
 catch (    VersionParseException e) {
      if (getLog().isDebugEnabled()) {
        getLog().debug(e);
      }
    }
    if (StringUtils.isBlank(nextSnapshotVersion)) {
      throw new MojoFailureException("String_Node_Str");
    }
    mvnSetVersions(nextSnapshotVersion);
    gitCommit("String_Node_Str");
    if (installProject) {
      mvnCleanInstall();
    }
    if (!keepBranch) {
      gitBranchDelete(gitFlowConfig.getReleaseBranchPrefix() + releaseVersion);
    }
  }
 catch (  CommandLineException e) {
    getLog().error(e);
  }
}