When water flows into lava, the hissing noise plays, but the accompanying smoke no longer appears. I suspect it's been like this since the Great SMP Switchover.
Not a tremendously huge deal, but does ruin the ability to make smoke machines.
Code analysis: https://bugs.mojang.com/browse/MC-6654?focusedCommentId=284677&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-284677 and https://bugs.mojang.com/browse/MC-10369?focusedCommentId=284639&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-284639
Linked issues
duplicates
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Comments
I agree, it is because of the server swap. However, a lot of other interactions and features that SMP had been missing had been lost in the changeover, and those were restored. I suspect this one should be restored as well, but I can see Team Dinnerjeb deciding it's unnecessary as another valid choice.
Confirmed in 13w02b.

Is this still a concern in the current Minecraft version 1.8.1 Prerelease 3 / Launcher version 1.5.3 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Confirmed for
16w06a

Please link to this comment and the comment on MC-10369 in the description of this report
The following is based on decompiled version of Minecraft 1.8 using MCP. All method and class names are the names used in the decompiled version.
How to fix the bug
Instead of having the for
loops to create the particles, the following could / should be used:
Affected class:
net.minecraft.block.BlockLiquid
Affected method:
protected void func_180688_d(World worldIn, BlockPos p_180688_2_)
New code:
p_180688_2_
- TheBlockPos
of the lava block((WorldServer) worldIn).func_175739_a(EnumParticleTypes.SMOKE_LARGE, (double)p_180688_2_.getX() + 0.5D, (double)p_180688_2_.getY() + 1.2D, (double)p_180688_2_.getZ() + 0.5D, 8, 0.25D, 0D, 0.25D, 0D, new int[0]);
Started from 1.3.1, The minecraft always open a server even if singleplayer, and servers don't support that kinds of particle. So it's NOT a bug.