diff --git a/modules/core/src/main/java/com/illposed/osc/LibraryInfo.java b/modules/core/src/main/java/com/illposed/osc/LibraryInfo.java
index fd36da23..4f5de8df 100644
--- a/modules/core/src/main/java/com/illposed/osc/LibraryInfo.java
+++ b/modules/core/src/main/java/com/illposed/osc/LibraryInfo.java
@@ -42,9 +42,12 @@ public final class LibraryInfo {
 
 	static {
 		final Set<Package> tmpUninterestingPkgs = new HashSet<>();
-		ClassLoader classLoader = LibraryInfo.class.getClassLoader();
-		tmpUninterestingPkgs.add(classLoader.getDefinedPackage("java.lang"));
-		tmpUninterestingPkgs.add(classLoader.getDefinedPackage("java.util"));
+		try {
+			tmpUninterestingPkgs.add(Class.forName("java.lang.Object").getPackage());
+			tmpUninterestingPkgs.add(Class.forName("java.util.List").getPackage());
+		} catch (ClassNotFoundException ignored) {
+			// java.lang and java.util should always be present and loaded
+		}
 		// NOTE We need to do it like this, because otherwise "java.awt" can not be found
 		//   by this classes class-loader.
 		final Class<?> javaAwtColorClass = getAwtColor();