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Home » Language IDEs » Java Development Tools (JDT) » Installing JRE programatically
Installing JRE programatically [message #1348025] Sun, 11 May 2014 16:54
Frank Benoit is currently offline Frank BenoitFriend
Messages: 179
Registered: July 2009
Senior Member

this is not a question. It took me quit a while to figure this out, so i thougth this could be useful for someone else...

Plugin dependency: org.eclipse.jdt.launching

void installJre(String name, String path) throws CoreException, IOException {
	File installLocation = new File(path).getAbsoluteFile().getCanonicalFile();
	IVMInstallType instType = null;
	for( IVMInstallType i : JavaRuntime.getVMInstallTypes()){
		if( i.getName().equals( "Standard VM" )){
			instType = i;
	for( IVMInstall vm : instType.getVMInstalls()){
		if( vm.getInstallLocation().equals(installLocation) ){
			System.err.printf("JRE already installed: name=%s, path=%\n", name, path );
	IStatus valState = instType.validateInstallLocation(installLocation);
	if( valState != null && !valState.isOK() ){
		System.err.printf("JRE path is not valid: name=%s, path=%\n", name, path );
	VMStandin vmStandin = new VMStandin(instType, name);

	IVMInstall vmReal = vmStandin.convertToRealVM();
	JavaRuntime.setDefaultVMInstall(vmReal, new NullProgressMonitor());

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