Andrew Albert's weBlog

Updating to Java 8

Java 8 was released earlier this week, so I downloaded and installed JDK 8 & NetBeans 8.0. After updating my PATH environment variable, I was surprised that powershell was still finding an old Java version:

Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.

PS C:\Users\andrew> java -version
  java version "1.7.0_51"
  Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
  Java HotSpot(TM) Client VM (build 24.51-b03, mixed mode, sharing)

but cmd.exe was finding the java.exe I was expecting…

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\andrew>java -version
  java version "1.8.0"
  Java(TM) SE Runtime Environment (build 1.8.0-b132)
  Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

Confusing, right?

I vaguely remembered that the Java installer copies the java.exe runtime somewhere else and checked:

C:\Users\andrew>where java
  C:\Windows\System32\java.exe
  C:\Program Files\Java\jdk1.8.0\bin\java.exe
  C:\Program Files\Java\jre7\bin\java.exe

and also noticed that C:\Windows\system32 was in my path ahead of C:\Program Files\Java\jdk1.8.0\bin:

C:\Users\andrew>echo %path%
  ...;C:\Windows\system32;...;C:\Program Files\Java\jdk1.8.0\bin;...

Changing the order of these in my path fixed my issue in powershell:

PS C:\Users\andrew> java -version
java version "1.8.0"
  Java(TM) SE Runtime Environment (build 1.8.0-b132)
  Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

I assumed that the Java 7 installer I’d used copied java.exe into System32, but the JDK 8 & NetBeans 8.0 installer didn’t.

That doesn’t seem to be the case, and I’m still confused. Look at:

PS C:\Windows\System32> .\java.exe -version
  java version "1.7.0_51"
  Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
  Java HotSpot(TM) Client VM (build 24.51-b03, mixed mode, sharing)

compared with:

c:\Windows\System32>java.exe -version
  java version "1.8.0"
  Java(TM) SE Runtime Environment (build 1.8.0-b132)
  Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

Why does it seem like c:\Windows\System32\java.exe is different depending on if I’m in powershell or cmd.exe?

Use Markdown as the default syntax for editing tumblr posts

Maybe it’s me — am I the only one that finds tumblr’s UI awkward and unintuitive? (I actually had to use google to figure out how to rename my blog :|). Enabling markdown-syntax for your posts was another feature that I had to hunt to find:

  • From your dashboard (http://www.tumblr.com/dashboard)
  • Click the cog wheel at the top
  • With “Account” selected, there is an “Edit posts using” option. Select Markdown.

Not too well-hidden once you know where to look. Maybe it’s me.

While googling, I also found this news post from 5 years ago about markdown via email or mobile: if you include !m anywhere in the subject or body of a post, markdown syntax will be used. Neat.

Changing the sublime text 3 sidebar colors

I wish sublime’s themes affected its side bar. Because sublime shares the same .tmTheme themes as textmate, they don’t, but you can manually change the sidebar style by editing Default.sublime-theme.

To do this, edit the “sidebar_tree”, “sidebar_heading”, etc classes in Packages/Theme - Default/Default.sublime-theme. I overrode those defaults by putting this Default.sublime-theme inside the Packages/User folder. It recolors the sidebar to better complement my solarized(light)-themed editor. Here is a similar Default.sublime-theme for solarized(dark).

p.s. I always forget where my Packages folder lives. From the sublime text menu, selecting “Preferences → Browse Packages…” will take you to it.

Sublime’s “goto anything” (ctrl+P) in Netbeans…

The more I use sublime, the less I want to use any other editor for my code.

Fortunately, I found a netbeans plugin (open file fast) which can stand in for one of my favourite sublime features.

The 6.9 version still worked for NB 8.0. Thanks to mrtwice99 for these instructions:

  • Download the 6.9 .nbm
  • In NetBeans, go to Tools → Plugins → Downloaded → Add Plugins, select the downloaded file and click Install (http://wiki.netbeans.org/FaqPluginInstall)
  • Restart NetBeans (although it is not needed to run the plug-in, I found that I couldn’t set key short cut for Open File Fast)
  • Now for the short cut. Go to Tools → Options → Keymap, search for “open file fast” → Assign short cut

Update: The plugin is still working on the latest version of netbeans (8.0). Also, if like me you’re using Ctrl+P for the shortcut, you might want to reassign “Show Code Completion Tip Popup”. :-)