public void sleep(long duration) {
    long start = System.currentTimeMillis();
    while(true) {
        if (System.currentTimeMillis() - start >= duration)
            break;
    }
}
By imaN NeO, 2018-10-28 09:35:15
bool calculateLeapYear(uint8_t year) {
    if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
        return true;
    } else {
        return false;
    }
}

uint8_t and a useless if.

By eha, 2023-06-19 23:01:57
function renderGroupSelectedSuccessors() {
    var index = 0;
    if (tempSuccessorsGroupsList != null && tempSuccessorsGroupsList.length > 0) {
        var groups = tempSuccessorsGroupsList.splice(0, PageSettings.lazyRenderItemsPerPage);
        var groupSuccessors = '';
        for (var i = 0; i < groups.length; i++) {
            if (index % 10 == 0) {
                groupSuccessors += '<div style="float: left;"><ul>';
            }
            groupSuccessors += '<li><a data-groupid="'+groups[i].GroupID+'">' + groups[i].GroupName + '</a></li>';            
            index++;
            if (index % 10 == 0 || i == groups.length - 1) {
                groupSuccessors += '</ul></div>';
            }
        }
        $('#divGroupSuccessorsList').append(groupSuccessors);
        SetCheckBoxState();
        setTimeout(renderGroupSelectedSuccessors, 50);
    }
}

Where does the data come from? Where does it go? Why isn't this an endless recursive loop? Why has this worked for three years?

By Anonymous, 2019-05-10 13:20:47
private HashMap<String, Tuple6<float[], String[], String[], String[], String[], String>> memberNameChangedToProtectTheInnocent = null;
By Anonymous, 2017-12-12 12:13:22
		roots.push(resolver(Config.root, `${pageDir}${path.sep}${page}${path.sep}${page}.html`));
By Anonymous, 2023-04-01 10:39:37
reduc_ind = list(xrange(1, len(x.get_shape())))
By Anonymous, 2017-08-14 18:37:29
boolean isUserAuthorized = user.isSuperAdmin();
if (!isUserAuthorized) {
    isUserAuthorized = isUserAdminOfEntity1();
}
if (!isUserAuthorized) {
    isUserAuthorized = isUserAdminOfEntity2();
}
if (!isUserAuthorized) {
    throw new AccessDeniedException("Authenticated user is not admin ");
}
By tralaladidou, 2019-05-07 16:37:32
var div = '<div class="imgdiv" '+(user[5] ? 'style="display: flex; flex-direction: column; padding: 10px; justify-content: flex-end; background-image: url(\''+user[5]+'\');"' : '')+'>'
        + (usersVideos[userId] && <?= ($authuser ? 'true' : 'false') ?> ? '<i class="f7-icons icon-acc" onclick="videoShow('+user[uID]+')" style="color: white; font-size: 50px; margin-bottom: 5px; cursor: pointer; text-align: left;">play_round</i>' : '')
        + (iam && page=='home' ? '<div> <input id="video-input" onchange="uploadVideo(files)" type="file" accept="video/*" style="display: none; width: 80%; height: 100px; margin: auto; padding-top: 20px;"/> </div> <p class="action_cont" style="padding: 0; padding-top: 12;"> <a class="act_btn" onmousedown=document.getElementById("video-input").click() href="javascript:void(0)" style="text-decoration: none; margin: auto; width: calc(100% - 26px); text-align: center;"> ' + (myMods['video'] ? 'Загрузить новое видео' : 'Добавить видео-превью' ) + ' </a> </p>' : '')
+ '</div>'

JS + CSS + PHP + HTML

By Anon, 2018-08-24 18:30:12
 if (!String.IsNullOrEmpty(Client.CLADDR1))
            {
                if (Client.CLADDR1 == "NULL")
                {
By Anonymous, 2017-06-29 12:33:24


public static MyClass {
    private static volatile ProcessManager singleton = null;
    
    public static ProcessManager getInstance() throws Exception {
        if (singleton == null) {
            synchronized (MyClass.class) {
                if (singleton == null) {
                    singleton = new ProcessManager();
                }
            }
        }
        return singleton;
    }
}

The double-checking was invented prior to Java5.

The purpose is if the field isn't null, you don't have to synchronize. But since the java memory model specification was cleaned up and Synchronize/Volatile were given much better specification and semantics it is totally useless boilerplate that you should only write if you have to support Java4. There is a Google Tech Talk that covers this.

By cody, 2017-12-12 08:02:01
	// Check if marked for deletion and run finalizers
	if k8sutil.IsMarkedForDeletion(instance.ObjectMeta) {
		return r.checkFinalizers(ctx, log, instance)
	}
By Anonymous, 2019-12-31 15:25:32
  /** 
   * Deserializes the contents of the incoming message buffer {@code b}. 
   * 
   * @return deserialised object
   * @throws UnsupportedEncodingException If the named charset is not supported
   */
  Object r() throws UnsupportedEncodingException{
    int i=0, n, t=b[j++];
    if(t<0)
      switch(t){
        case -1:
          return rb();
        case (-2):
          return rg();
        case -4:
          return b[j++];
        case -5:
          return rh();
        case -6:
          return ri();
        case -7:
          return rj();
        case -8:
          return re();
        case -9:
          return rf();
        case -10:
          return rc();
        case -11:
          return rs();
        case -12:
          return rp();
        case -13:
          return rm();
        case -14:
          return rd();
        case -15:
          return rz();
        case -16:
          return rn();
        case -17:
          return ru();
        case -18:
          return rv();
        case -19:
          return rt();
      }
    if(t>99){
      if(t==100){
        rs();
        return r();
      }
      if(t<104)
        return b[j++]==0&&t==101?null:"func";
      if(t>105)
        r();
      else
        for(n=ri();i<n;i++)
          r();
      return "func";
    }
    if(t==99)
      return new Dict(r(),r());
    j++;
    if(t==98)
      return new Flip((Dict)r());
    n=ri();
    switch(t){
      case 0:
        Object[] L=new Object[n];
        for(;i<n;i++)
          L[i]=r();
        return L;
      case 1:
        boolean[] B=new boolean[n];
        for(;i<n;i++)
          B[i]=rb();
        return B;
      case 2: {
        UUID[] G=new UUID[n];
        for(;i<n;i++)
          G[i]=rg();
        return G;
      }
      case 4:
        byte[] G=new byte[n];
        for(;i<n;i++)
          G[i]=b[j++];
        return G;
      case 5:
        short[] H=new short[n];
        for(;i<n;i++)
          H[i]=rh();
        return H;
      case 6:
        int[] I=new int[n];
        for(;i<n;i++)
          I[i]=ri();
        return I;
      case 7:
        long[] J=new long[n];
        for(;i<n;i++)
          J[i]=rj();
        return J;
      case 8:
        float[] E=new float[n];
        for(;i<n;i++)
          E[i]=re();
        return E;
      case 9:
        double[] F=new double[n];
        for(;i<n;i++)
          F[i]=rf();
        return F;
      case 10:
        char[] C=new String(b,j,n,encoding).toCharArray();
        j+=n;
        return C;
      case 11:
        String[] S=new String[n];
        for(;i<n;i++)
          S[i]=rs();
        return S;
      case 12:
        Timestamp[] P=new Timestamp[n];
        for(;i<n;i++)
          P[i]=rp();
        return P;
      case 13:
        Month[] M=new Month[n];
        for(;i<n;i++)
          M[i]=rm();
        return M;
      case 14:
        Date[] D=new Date[n];
        for(;i<n;i++)
          D[i]=rd();
        return D;
      case 15:
        java.util.Date[] Z=new java.util.Date[n];
        for(;i<n;i++)
          Z[i]=rz();
        return Z;
      case 16:
        Timespan[] N=new Timespan[n];
        for(;i<n;i++)
          N[i]=rn();
        return N;
      case 17:
        Minute[] U=new Minute[n];
        for(;i<n;i++)
          U[i]=ru();
        return U;
      case 18:
        Second[] V=new Second[n];
        for(;i<n;i++)
          V[i]=rv();
        return V;
      case 19:
        Time[] T=new Time[n];
        for(;i<n;i++)
          T[i]=rt();
        return T;
    }
    return null;
  }

Manually maintained open-source code on GitHub. Looks like decompiled from obfuscated binary, they just reformatted it, added some comments and now are making manual changes. Current version: https://github.com/KxSystems/javakdb/blob/master/src/kx/c.java Original version: https://github.com/KxSystems/javakdb/blob/c9afe6fa32d7d3e3cddabdc9bd43f0155a5d2a1b/src/kx/c.java

By KxSystems, 2017-12-13 17:19:57
 Map<Object, List<Element>> groupeUniqueMap =values.stream().collect(Collectors.groupingBy(this::getCompositeGroupKey, Collectors.toList()));
      if(groupeUniqueMap.containsKey(Arrays.asList(null,null,null,null,null,null,null)))
        return values;
      return doReturn();
By ThisIsFine, 2020-07-02 18:41:35
<div class="scrollContent">
	{foreach $animations as $index => $a}
		{if $index > 2}
			{if $a.filename == '9_1447691013_3726.png'}
			{else}
				{if $a.filename == '9_1423150010_6441.png'}
				{else}
					{if $a.filename == '9_1423149959_5909.png'}
					{else}
						{if $a.filename == '9_1423149908_5874.png'}
						{else}
							{if $a.filename == '9_1528213223_6374.jpg'}
							{else}
								{if $a.filename == '9_1527670984_3732.jpg'}
								{else}

							<div class="spotlightFrame frame{$index+1} contains1" data-index="{$index}">
								{if $a.link}<a href="{$a.link}">{/if}
								<img src="/upload/{$a.filename}" alt="{$a.title}" />
								{if $a.link}</a>{/if}
							</div>

								{/if}
							{/if}
						{/if}
					{/if}
				{/if}
			{/if}
		{/if}
	{/foreach}
</div>

Handovers are great.

By Anonymous, 2018-07-09 14:50:36
<?php
    if(isset($_POST['csrf'])){
        if($_POST['csrf'] !== $_SESSION['csrf']){
            return 'session expired!';
        }
    }

In all Sama Samaneh university and class management system from iran :)

By Mahmoud etc, 2017-12-14 11:21:23