Program: 16076
Project: 16076
Buggy source:
private void test(String... args){
  for (int i=0; i < args.length; i++) {
    if ("String_Node_Str".equals(args[i])) {
      url=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      driver=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      user=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      password=args[++i];
    }
  }
  System.out.println("String_Node_Str" + driver + "String_Node_Str"+ url+ "String_Node_Str"+ user+ "String_Node_Str"+ password);
  try {
    System.out.println("String_Node_Str");
    Random random=new Random();
    boolean wasRunning=false;
    for (int i=0; i < 3000; i++) {
      if (i > 1000 && connections.size() > 1 && tables.size() > 1) {
        System.out.println("String_Node_Str" + connections.size() + "String_Node_Str"+ tables.size());
        wasRunning=true;
      }
      if (connections.size() < 1) {
        openConnection();
      }
      if (tables.size() < 1) {
        createTable(random);
      }
      int p=random.nextInt(100);
      if ((p-=2) <= 0) {
        if (connections.size() < 5) {
          openConnection();
        }
      }
 else       if ((p-=1) <= 0) {
        if (connections.size() > 1) {
          Connection conn=connections.remove(random.nextInt(connections.size()));
          if (random.nextBoolean()) {
            conn.close();
          }
        }
      }
 else       if ((p-=10) <= 0) {
        createTable(random);
      }
 else       if ((p-=20) <= 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table + "String_Node_Str");
          }
 else           if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table + "String_Node_Str");
          }
 else {
            stat.execute("String_Node_Str" + table);
          }
        }
      }
 else       if ((p-=5) < 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table);
          }
 else {
            stat.execute("String_Node_Str" + table);
            System.out.println("String_Node_Str" + table);
            tables.remove(table);
          }
        }
      }
 else       if ((p-=30) <= 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          stat.execute("String_Node_Str" + table + "String_Node_Str");
        }
      }
 else {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          stat.execute("String_Node_Str" + table + "String_Node_Str"+ table);
        }
      }
    }
    System.out.println("String_Node_Str" + wasRunning);
    System.out.println("String_Node_Str");
  }
 catch (  Throwable e) {
    System.out.println("String_Node_Str" + openCount + "String_Node_Str"+ url+ "String_Node_Str"+ e.toString());
    e.printStackTrace(System.out);
    System.out.println("String_Node_Str");
  }
}

Fixed version (ground truth):
private void test(String... args){
  for (int i=0; i < args.length; i++) {
    if ("String_Node_Str".equals(args[i])) {
      url=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      driver=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      user=args[++i];
    }
 else     if ("String_Node_Str".equals(args[i])) {
      password=args[++i];
    }
  }
  System.out.println("String_Node_Str" + driver + "String_Node_Str"+ url+ "String_Node_Str"+ user+ "String_Node_Str"+ password);
  try {
    System.out.println("String_Node_Str");
    Random random=new Random();
    boolean wasRunning=false;
    for (int i=0; i < 200; i++) {
      if (connections.size() > 1 && tables.size() > 1) {
        System.out.println("String_Node_Str" + connections.size() + "String_Node_Str"+ tables.size());
        wasRunning=true;
      }
      if (connections.size() < 1) {
        openConnection();
      }
      if (tables.size() < 1) {
        createTable(random);
      }
      int p=random.nextInt(100);
      if ((p-=2) <= 0) {
        if (connections.size() < 5) {
          openConnection();
        }
      }
 else       if ((p-=1) <= 0) {
        if (connections.size() > 1) {
          Connection conn=connections.remove(random.nextInt(connections.size()));
          if (random.nextBoolean()) {
            conn.close();
          }
        }
      }
 else       if ((p-=10) <= 0) {
        createTable(random);
      }
 else       if ((p-=20) <= 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table + "String_Node_Str");
          }
 else           if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table + "String_Node_Str");
          }
 else {
            stat.execute("String_Node_Str" + table);
          }
        }
      }
 else       if ((p-=5) < 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          if (random.nextBoolean()) {
            stat.execute("String_Node_Str" + table);
          }
 else {
            stat.execute("String_Node_Str" + table);
            System.out.println("String_Node_Str" + table);
            tables.remove(table);
          }
        }
      }
 else       if ((p-=30) <= 0) {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          stat.execute("String_Node_Str" + table + "String_Node_Str");
        }
      }
 else {
        if (tables.size() > 0) {
          Connection conn=connections.get(random.nextInt(connections.size()));
          Statement stat=conn.createStatement();
          String table=tables.get(random.nextInt(tables.size()));
          stat.execute("String_Node_Str" + table + "String_Node_Str"+ table);
        }
      }
    }
    System.out.println("String_Node_Str" + wasRunning);
    System.out.println("String_Node_Str");
  }
 catch (  Throwable e) {
    System.out.println("String_Node_Str" + openCount + "String_Node_Str"+ url+ "String_Node_Str"+ e.toString());
    e.printStackTrace(System.out);
    System.out.println("String_Node_Str");
  }
}