Rename jee7schedule -> jee7

jee7/src/test/java/com/baeldung/timer/WithinWindowMatcher.java

@@ -0,0 +1,30 @@
+package com.baeldung.timer;
+
+import org.hamcrest.BaseMatcher;
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+
+class WithinWindowMatcher extends BaseMatcher<Long> {
+    private final long timeout;
+    private final long tolerance;
+
+    public WithinWindowMatcher(long timeout, long tolerance) {
+        this.timeout = timeout;
+        this.tolerance = tolerance;
+    }
+
+    @Override
+    public boolean matches(Object item) {
+        final Long actual = (Long) item;
+        return Math.abs(actual - timeout) < tolerance;
+    }
+
+    @Override
+    public void describeTo(Description description) {
+        //To change body of implemented methods use File | Settings | File Templates.
+    }
+
+    public static Matcher<Long> withinWindow(final long timeout, final long tolerance) {
+        return new WithinWindowMatcher(timeout, tolerance);
+    }
+}