jodd-core/src/main/java/jodd/exception/ExceptionUtil.java
public static StackTraceElement[] getStackTrace(final Throwable t, final String[] allow, final String[] deny) {
		StackTraceElement[] st = t.getStackTrace();
		ArrayList<StackTraceElement> result = new ArrayList<>(st.length);

		elementLoop:
		for (StackTraceElement element : st) {
			String className = element.getClassName();
			if (allow != null) {
				boolean validElemenet = false;
				for (String filter : allow) {
					if (className.contains(filter)) {
						validElemenet = true;
						break;
					}
				}
				if (!validElemenet) {
					continue;
				}
			}
			if (deny != null) {
				for (String filter : deny) {
					if (className.contains(filter)) {
						continue elementLoop;
					}
				}
			}
			result.add(element);
		}
		st = new StackTraceElement[result.size()];
		return result.toArray(st);
	}
public static StackTraceElement[] getStackTrace(final Throwable t, final String[] allow, final String[] deny) {
		StackTraceElement[] st = t.getStackTrace();
		ArrayList<StackTraceElement> result = new ArrayList<>(st.length);

		elementLoop:
		for (StackTraceElement element : st) {
			String className = element.getClassName();
			if (allow != null) {
				boolean validElemenet = false;
				for (String filter : allow) {
					if (className.contains(filter)) {
						validElemenet = true;
						break;
					}
				}
				if (!validElemenet) {
					continue;
				}
			}
			if (deny != null) {
				for (String filter : deny) {
					if (className.contains(filter)) {
						continue elementLoop;
					}
				}
			}
			result.add(element);
		}
		st = new StackTraceElement[result.size()];
		return result.toArray(st);
	}
Returns stack trace filtered by class names.