How to make particle-editor work in java 8 ? Security stuff

This is the code i have in my jnlp.

What should i do? Even when i try to open with my jre7u45, it still wont work.

<?xml version='1.0' encoding='utf-8'?>
<jnlp spec='1.0+' codebase='http://libgdx.googlecode.com/svn/jws/' href='particle-editor.jnlp'>
<information>
	<title>libgdx Particle Editor</title>
	<vendor>libgdx</vendor>
	<homepage href='http://libgdx.googlecode.com/'/>
	<description>libgdx Particle Editor</description>
	<description kind='short'>libgdx Particle Editor</description>
	<icon kind='splash' href='splash.jpg'/>
</information>
<security>
	<all-permissions/>
</security>
<resources>
	<j2se href='http://java.sun.com/products/autodl/j2se' version='1.5+' max-heap-size='128m'/>
	<jar href='gdx-tools.jar'/>
	<jar href='gdx.jar'/>
	<jar href='gdx-backend-lwjgl.jar'/>
</resources>
<resources os='Windows' arch="x86">
	<j2se href='http://java.sun.com/products/autodl/j2se' version='1.5+' max-heap-size='128m'/>
	<nativelib href='natives-win32.jar'/>
</resources>
<resources os='Windows' arch="x86_64">
	<j2se href='http://java.sun.com/products/autodl/j2se' version='1.5+' max-heap-size='128m'/>
	<nativelib href='natives-win64.jar'/>
</resources>
<resources os='Mac'>
	<j2se href='http://java.sun.com/products/autodl/j2se' version='1.5+' max-heap-size='128m'/>
	<nativelib href='natives-mac.jar'/>
</resources>
<resources os='Linux'>
	<j2se href='http://java.sun.com/products/autodl/j2se' version='1.5+' max-heap-size='128m'/>
	<nativelib href='natives-linux.jar'/>
</resources>
<application-desc main-class='com.badlogic.gdx.tools.particleeditor.ParticleEditor'/>
</jnlp>