Add license headers (#2271)

Thanks.

src/main/java/com/zaxxer/hikari/SQLExceptionOverride.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari;
 
 import java.sql.SQLException;

src/main/java/com/zaxxer/hikari/metrics/dropwizard/Dropwizard5MetricsTracker.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.metrics.dropwizard;
 
 import java.util.concurrent.TimeUnit;

src/main/java/com/zaxxer/hikari/metrics/dropwizard/Dropwizard5MetricsTrackerFactory.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.metrics.dropwizard;
 
 import com.zaxxer.hikari.metrics.IMetricsTracker;

src/main/java/com/zaxxer/hikari/metrics/micrometer/MicrometerMetricsTracker.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.metrics.micrometer;
 
 import com.zaxxer.hikari.metrics.IMetricsTracker;

src/main/java/com/zaxxer/hikari/metrics/micrometer/MicrometerMetricsTrackerFactory.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.metrics.micrometer;
 
 import com.zaxxer.hikari.metrics.IMetricsTracker;

src/main/java/com/zaxxer/hikari/pool/ProxyDatabaseMetaData.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.pool;
 
 import java.sql.Connection;

src/main/java/com/zaxxer/hikari/util/Credentials.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.util;
 
 import javax.management.ConstructorParameters;

src/test/java/com/zaxxer/hikari/datasource/TestSealedConfig.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (C) 2013, 2014 Brett Wooldridge
+ *
+ * Licensed 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 com.zaxxer.hikari.datasource;
 
 import com.zaxxer.hikari.HikariConfig;