Add github actions and cleanup java whitespace

java/test/TestH5Tparams.java

@@ -274,7 +274,7 @@ public class TestH5Tparams {
     public void testH5Tpack_invalid() throws Throwable {
         H5.H5Tpack(-1);
     }
-    
+
     @Test(expected = HDF5LibraryException.class)
     public void testH5Treclaim_invalid() throws Throwable {
         byte[] buf = new byte[2];