Setup Subversion 1.7 into JDeveloper 11R2

I do not know for what reason Oracle JDeveloper R2 still does not support Subversion 1.7, but I've managed to make it to support it. I've done it n Linux, but you can apply it for Windows too.
So.
That is what I have:
- Ubuntu 11.20 Linux 3.5.0-24-generic SMP x86_64
- JDeveloper Studio Edition 11.1.2.3.0

1. Check what Subversion is installed in JDeveloper.
Start JDeveloper and open menu Tools -> Preferences, select Versioning/Subversion: see
SVNKit/1.3.5 Client installed. JNA disabled.

2. Close JDeveloper.

3. This step is optional. Install linsvn-java package if you think you will need some fancy ways to login to Subversion using system security.

sudo apt-get install libsvn-java

4. Download SVNKit Standalone Version 1.7 from http://svnkit.com/download.php
cd /download/svn/
wget http://www.svnkit.com/org.tmatesoft.svn_1.7.8.standalone.zip
unzip  org.tmatesoft.svn_1.7.8.standalone.zip


/download/svn/svnkit-1.7.8 directory is created

5. Download Subclipse 1.8 from http://subclipse.tigris.org
cd /download/subclipse/
wget http://subclipse.tigris.org/files/documents/906/49260/site-1.8.18.zip
unzip site-1.8.18.zip 

later we will need only files from /download/subclipse/plugins

5. Go to JDeveloper extension directory (my JDev is installed in /opt/oracle/) and do following:
cd /opt/oracle/middleware-11.1.2.3/jdeveloper/jdev/extensions
mv oracle.jdeveloper.subversion oracle.jdeveloper.subversion-1.3
mkdir oracle.jdeveloper.subversion-1.7
ln -s oracle.jdeveloper.subversion-1.7 oracle.jdeveloper.subversion

6. Copy required SVNKit files here and link them as "versionless" names
cd oracle.jdeveloper.subversion
cp /download/svn/svnkit-1.7.8/lib/antlr-runtime-3.4.jar .
cp /download/svn/svnkit-1.7.8/lib/svnkit-1.7.8.jar .
cp /download/svn/svnkit-1.7.8/lib/sqljet-1.1.6.jar .
cp /download/svn/svnkit-1.7.8/lib/sequence-library-1.0.2.jar .
cp /download/svn/svnkit-1.7.8/svnkit-javahl16-1.7.8.jar .
cp /download/svn/svnkit-1.7.8/trilead-ssh2-1.0.0-build215.jar .

ln -s antlr-runtime-3.4.jar antlr-runtime.jar
ln -s svnkit-1.7.8.jar svnkit.jar
ln -s sqljet-1.1.6.jar sqljet.jar
ln -s sequence-library-1.0.2.jar sequence-library.jar
ln -s svnkit-javahl16-1.7.8.jar svnkit-javahl.jar
ln -s trilead-ssh2-1.0.0-build215.jar trilead.jar


7. Copy required Subclipse files here and link them as "versionless" names

cp /download/subclipse/plugins/net.java.dev.jna_3.4.0.t20120117_1605.jar .
cp /download/subclipse/plugins/org.tigris.subversion.clientadapter_1.8.3.jar .

cp /download/subclipse/plugins/org.tigris.subversion.clientadapter.javahl_1.7.8.1.jar .
cp /download/subclipse/plugins /org.tigris.subversion.clientadapter.svnkit_1.7.8.1.jar . 

ln -s net.java.dev.jna_3.4.0.t20120117_1605.jar jna.jar
ln -s org.tigris.subversion.clientadapter_1.8.3.jar svnClientAdapter.jar 
ln -s org.tigris.subversion.clientadapter.javahl_1.7.8.1.jar svnjavahl.jar
ln -s org.tigris.subversion.clientadapter.svnkit_1.7.8.1.jar casvnkit.jar

5. Go to JDeveloper jdev/bin directory and open jdev.conf file in your favorite text editor:
cd /opt/oracle/middleware-11.1.2.3/jdeveloper/jdev/bin
gedit jdev.conf

6. Add following to the end
#
# Needed for Subversion 1.7
#
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/antlr-runtime.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/svnkit.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/casvnkit.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/sqljet.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/svnClientAdapter.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/svnjavahl.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/trilead.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/svnkit-javahl.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/sequence-library.jar

# If you want to use JNA
#AddNativeCodePath /usr/lib/x86_64-linux-gnu/jni/libsvnjavahl-1.so
#AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/jna.jar

# for debug
#AddVMOption -Djava.util.logging.config.file=../extensions/oracle.jdeveloper.subversion/svnkit-logging.conf
#AddVMOption -verbose

7. Check what Subversion is now installed in JDeveloper.
Start JDeveloper and open menu Tools -> Preferences, select Versioning/Subversion: see
SVNKit/1.7.8 Client installed. JNA Disabled.

Done!
Now you can connect to your Subversion 1.7 repository and use Versioning Navigator, commit files in Application Navigator etc.


Some additional notes!

I had issues when I wanted to add a project or an application to Versioning (using JDK 1.6 (i386) and 1.7 (amd64) ). SVNKit returned exception
 java.lang.NullPointerException at org.tmatesoft.svn.core.internal.wc.SVNClassLoader.loadProperties(SVNClassLoader.java:193)

I've filed the bug to SVNKit issues tracker http://issues.tmatesoft.com/issue/SVNKIT-352 .
However if you do not want to wait for official update that includes the fix, you can fix it yourself.
1. unzip sources
cd /download/svn/svnkit-1.7.8-nojna/src
mkdir svnkit
cd svnkit
unzip ../svnkit-1.7.8-sources.jar 

2. unzip classes
cd /opt/oracle/middleware-11.1.2.3/jdeveloper/jdev/extensions/oracle.jdeveloper.subversion
mkdir svnkit
cd svnkit
unzip ../svnkit.jar

3. copy source to classes
cd org/tmatesoft/svn/core/internal/wc/ 
cp /download/svn/svnkit-1.7.8-nojna/src/svnkit/org/tmatesoft/svn/core/internal/wc/SVNClassLoader.java .


4. modify code to fix the bug
Open for edit SVNClassLoader.java
go to line 193

resourceStream = SVNClassLoader.class.getClassLoader().getResourceAsStream(svnkitPropertiesResource);
delete it

insert here the following

ClassLoader cl = SVNClassLoader.class.getClassLoader();
if (cl == null) cl = ClassLoader.getSystemClassLoader();
resourceStream = cl.getResourceAsStream(svnkitPropertiesResource);
save, exit from editor


5. compile the file
/opt/oracle/jdk1.7.0_15-amd64/bin/javac -g:source,lines,vars -source 1.5 -target 1.5 -cp /opt/oracle/middleware-11.1.2.3/jdeveloper/jdev/extensions/oracle.jdeveloper.subversion/sequence-library.jar:/opt/oracle/middleware-11.1.2.3/jdeveloper/jdev/extensions/oracle.jdeveloper.subversion/svnkit.jar SVNClassLoader.java

6. modify jdev.conf to use svnkit dir instead of svnkit.jar
AddVMOption -Xbootclasspath/a:../extensions/oracle.jdeveloper.subversion/svnkit

If you need that SVNKit to generate a detailed output create file
../extensions/oracle.jdeveloper.subversion/svnkit-logging.conf and populate it with something like
svnkit.level=FINEST
svnkit-network.level=FINEST
svnkit-fsfs.level=FINEST
svnkit-wc.level=FINEST
svnkit-cli.level=FINEST

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Note. By some reason History in JDeveloper does not work with SVN. Though you can see change log in Version Navigator or other ways.

Setup of Alsa on EMU0404 PCI

If you have no idea what is Alsa, Jack and emu10k1 you can stop reading right here.

I've built a new PC based on ASUS mobo P8Z77-M and installed Ubuntu Studio 12.10 on it. Also I've plugged emu0404 PCI (not PCIe) sound card into it. Though the card is supported by Soundblaster/Emu only for Windows, there are Alsa drivers for Linux too. I've successfully installed alsa-base and other alsa packages that include emu10k1 driver and firmware for it. However there were some issues.

Issue #1. Initially output to emu was broken. aplay repeated 1 sec fragment of sound many times. The issue is appeared to be in poor interrupts distribution by BIOS, or by inability this card to share an interrupt with other devices, in my case it was USB host controller. I could not plug the card into another slot, because there is only one legacy PCI slot on mobo. I tried to boot with kernel parameters acpi=off noapic and other acpi and pci options. Sometimes it worked, but often not.
The issue has been fixed by updating BIOS to 1806.

Issue #2. Playback to emu is perfect but there is no input capture. I've turned on all switches in alsamixer, maxed up all shaders. Still no capture. Somehow I've googled this thread: https://ardour.org/node/4061 . I started to set all alsamixer settings according to what linuxdsp user has recommended. And Ta-Daa! Sound got captured into Alsa. The important thing that was not described anywhere is to set internal routing in emu0404.
Specifically, in alsamixer on Capture tab set [DSP 0] to [0202 ADC Left] and [DSP 1] to [0202 ADC Right] accordingly.