SLING-7618 add missing license header
diff --git a/src/test/java/org/apache/sling/installer/hc/OsgiInstallerHealthCheckTest.java b/src/test/java/org/apache/sling/installer/hc/OsgiInstallerHealthCheckTest.java
index b561851..8b0fa43 100644
--- a/src/test/java/org/apache/sling/installer/hc/OsgiInstallerHealthCheckTest.java
+++ b/src/test/java/org/apache/sling/installer/hc/OsgiInstallerHealthCheckTest.java
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The SF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
package org.apache.sling.installer.hc;
import java.util.Arrays;
