Bug 123786 Following bug 109980, the compliance 6.0 should be added to the compiler's compliance list.
If the JRE/JDK used is a 1.6/6.0 VM, then the compliance 6.0 should be available. Compliance 1.6 implies source level 1.6 and target level 1.6.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/JavaProjectWizardFirstPage.java
public String getProjectName() {
		return fNameGroup.getName();
	}
	public boolean getDetect() {
		return fDetectGroup.mustDetect();
	}
	
	public boolean isSrcBin() {
		return fLayoutGroup.isSrcBin();
	}
	
	/**
	 * @return the selected JVM, or <code>null</code> iff the default JVM should be used
	 */
	public IVMInstall getJVM() {
		return fJREGroup.getSelectedJVM();
	}
	
	/**
	 * @return the selected Compiler Compliance, or <code>null</code> iff the default Compiler Compliance should be used
	 */
	public String getCompilerCompliance() {
		return fJREGroup.getSelectedCompilerCompliance();
	}
	
	/*
	 * see @DialogPage.setVisible(boolean)
	 */
	public void setVisible(boolean visible) {