How to manually install java libs and keep /tmp as noexec?

Question

I am trying to run android sdk on a box that needs to have noexec on /tmp.

I could point java tmp to be another place where i can exec, but that would defeat the purpose of the police that requires noexec in tmp. So i do not want to do that just yet.

I wanted to properly install the libs that sdk requires but my java is rusty.

When I try to run it, I get:

$ Android/Sdk/tools/android 
Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-gtk-3550 or swt-gtk in swt.library.path, java.library.path or the jar file
    at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
    at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
    at org.eclipse.swt.internal.C.<clinit>(Unknown Source)
    at org.eclipse.swt.internal.Converter.wcsToMbcs(Unknown Source)
    at org.eclipse.swt.internal.Converter.wcsToMbcs(Unknown Source)
    at org.eclipse.swt.widgets.Display.<clinit>(Unknown Source)
    at com.android.sdkmanager.Main.showSdkManagerWindow(Main.java:403)
    at com.android.sdkmanager.Main.doAction(Main.java:391)
    at com.android.sdkmanager.Main.run(Main.java:151)
    at com.android.sdkmanager.Main.main(Main.java:117)

My first try to work around that was:

$ sudo aptitude install libswt-gtk-3-java...
Selecting previously unselected package libswt-gtk-3-jni.
(Reading database ... 199270 files and directories currently installed.)
Preparing to unpack .../libswt-gtk-3-jni_3.8.2-3_amd64.deb ...
Unpacking libswt-gtk-3-jni (3.8.2-3) ...
Selecting previously unselected package libswt-gtk-3-java.
Preparing to unpack .../libswt-gtk-3-java_3.8.2-3_amd64.deb ...
Unpacking libswt-gtk-3-java (3.8.2-3) ...
Setting up libswt-gtk-3-jni (3.8.2-3) ...
Setting up libswt-gtk-3-java (3.8.2-3) ...

But I still get the same error. Does that means that the program is not looking for default libs but purposely trying to use something it unpacks on /tmp? Or will java unpack a jar always in /tmp, and try to run it from there, and there is nothing I can do?

EDIT: To clear that the noexec is the cause. If I run the application with -Djava.io.tmpdir=Android/tmp, then everything works. And I have the following content in the new tmp dir:

Android/tmp/
└── swtlib-64
    ├── libswt-gtk-3550.so
    └── libswt-pi-gtk-3550.so

Edit 2:

$ ANDROID_SWT=/usr/lib/java/
$ ls $ANDROID_SWT/
    swt-gtk-3.8.2.jar
$ Android/Sdk/tools/android 
Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-gtk-3550 or swt-gtk in swt.library.path, java.library.path or the jar file
...same...

Answer 1

I believe if you change the android sdk tools folder (in /opt) to be writable by you using chown, then the unpacking will happen within the sdk folder. You could do this by creating an 'androidsdk' group.