Program: 28169
Project: 28169
Buggy source:
private Config buildConfiguration(){
  Config config=new Config();
  String hazelcastFilePath="String_Node_Str";
  URL serverConfigURL;
  try {
    if (overrideConfiguration != null && overrideConfiguration.getAlternateConfigFile() != null) {
      XmlConfigBuilder builder=new XmlConfigBuilder(overrideConfiguration.getAlternateConfigFile().toURL());
      config=builder.build();
      return config;
    }
    serverConfigURL=new URL(context.getServerConfigURL());
    File serverConfigFile=new File(serverConfigURL.getPath());
    hazelcastFilePath=serverConfigFile.getParentFile().getAbsolutePath() + File.separator + configuration.getHazelcastConfigurationFile();
    File file=new File(hazelcastFilePath);
    if (file.exists()) {
      config=ConfigLoader.load(hazelcastFilePath);
      if (config == null) {
        Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str",hazelcastFilePath);
        config=new Config();
      }
    }
 else {
      memberName=context.getInstanceName();
      MulticastConfig mcConfig=config.getNetworkConfig().getJoin().getMulticastConfig();
      config.getNetworkConfig().setPortAutoIncrement(true);
      mcConfig.setEnabled(true);
      if (overrideConfiguration != null) {
        mcConfig.setMulticastGroup(overrideConfiguration.getMulticastGroup());
        mcConfig.setMulticastPort(overrideConfiguration.getMulticastPort());
        config.getNetworkConfig().setPort(overrideConfiguration.getStartPort());
        if (overrideConfiguration.getMemberName() != null) {
          memberName=overrideConfiguration.getMemberName();
        }
        config.setLiteMember(overrideConfiguration.isLite());
        config.setLicenseKey(overrideConfiguration.getLicenseKey());
        GroupConfig gc=config.getGroupConfig();
        gc.setName(overrideConfiguration.getClusterGroupName());
        gc.setPassword(overrideConfiguration.getClusterGroupPassword());
      }
 else {
        mcConfig.setMulticastGroup(configuration.getMulticastGroup());
        mcConfig.setMulticastPort(Integer.valueOf(configuration.getMulticastPort()));
        config.getNetworkConfig().setPort(Integer.valueOf(configuration.getStartPort()));
        config.setLicenseKey(configuration.getLicenseKey());
        config.setLiteMember(Boolean.parseBoolean(configuration.getLite()));
        GroupConfig gc=config.getGroupConfig();
        gc.setName(configuration.getClusterGroupName());
        gc.setPassword(configuration.getClusterGroupPassword());
      }
      config.setProperty("String_Node_Str","String_Node_Str");
    }
  }
 catch (  MalformedURLException ex) {
    Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str",ex);
  }
catch (  IOException ex) {
    Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str" + hazelcastFilePath + "String_Node_Str",ex);
  }
  return config;
}

Fixed version (ground truth):
private Config buildConfiguration(){
  Config config=new Config();
  String hazelcastFilePath="String_Node_Str";
  URL serverConfigURL;
  try {
    if (overrideConfiguration != null && overrideConfiguration.getAlternateConfigFile() != null) {
      XmlConfigBuilder builder=new XmlConfigBuilder(overrideConfiguration.getAlternateConfigFile().toURL());
      config=builder.build();
      config.setClassLoader(clh.getCommonClassLoader());
      return config;
    }
    serverConfigURL=new URL(context.getServerConfigURL());
    File serverConfigFile=new File(serverConfigURL.getPath());
    hazelcastFilePath=serverConfigFile.getParentFile().getAbsolutePath() + File.separator + configuration.getHazelcastConfigurationFile();
    File file=new File(hazelcastFilePath);
    if (file.exists()) {
      config=ConfigLoader.load(hazelcastFilePath);
      if (config == null) {
        Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str",hazelcastFilePath);
        config=new Config();
      }
      config.setClassLoader(clh.getCommonClassLoader());
    }
 else {
      config.setClassLoader(clh.getCommonClassLoader());
      memberName=context.getInstanceName();
      MulticastConfig mcConfig=config.getNetworkConfig().getJoin().getMulticastConfig();
      config.getNetworkConfig().setPortAutoIncrement(true);
      mcConfig.setEnabled(true);
      if (overrideConfiguration != null) {
        mcConfig.setMulticastGroup(overrideConfiguration.getMulticastGroup());
        mcConfig.setMulticastPort(overrideConfiguration.getMulticastPort());
        config.getNetworkConfig().setPort(overrideConfiguration.getStartPort());
        if (overrideConfiguration.getMemberName() != null) {
          memberName=overrideConfiguration.getMemberName();
        }
        config.setLiteMember(overrideConfiguration.isLite());
        config.setLicenseKey(overrideConfiguration.getLicenseKey());
        GroupConfig gc=config.getGroupConfig();
        gc.setName(overrideConfiguration.getClusterGroupName());
        gc.setPassword(overrideConfiguration.getClusterGroupPassword());
      }
 else {
        mcConfig.setMulticastGroup(configuration.getMulticastGroup());
        mcConfig.setMulticastPort(Integer.valueOf(configuration.getMulticastPort()));
        config.getNetworkConfig().setPort(Integer.valueOf(configuration.getStartPort()));
        config.setLicenseKey(configuration.getLicenseKey());
        config.setLiteMember(Boolean.parseBoolean(configuration.getLite()));
        GroupConfig gc=config.getGroupConfig();
        gc.setName(configuration.getClusterGroupName());
        gc.setPassword(configuration.getClusterGroupPassword());
      }
      config.setProperty("String_Node_Str","String_Node_Str");
    }
  }
 catch (  MalformedURLException ex) {
    Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str",ex);
  }
catch (  IOException ex) {
    Logger.getLogger(HazelcastCore.class.getName()).log(Level.WARNING,"String_Node_Str" + hazelcastFilePath + "String_Node_Str",ex);
  }
  return config;
}