import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
+import java.util.zip.Deflater;
import org.eclipse.jdt.core.compiler.CompilationProgress;
Files.createDirectories(jarP.getParent());
try (JarOutputStream jarOut = new JarOutputStream(Files.newOutputStream(jarP), manifest)) {
+ jarOut.setLevel(Deflater.DEFAULT_COMPRESSION);
// add all classes first
Files.walkFileTree(binP, new SimpleFileVisitor<Path>() {
@Override