Primary change is HDFFV-11212 - new refs and JNI (#372)

* OESS-98 convert plugin option to FetchContent, add tests

* Fixes for pkcfg files because of plugin option

* OESS-98 fix tools test for plugins

* Keep doxygen comments under 100 chars long - format hint

* Whitespace

* HDFFV-11144 - Reclassify CMake messages

* HDFFV-11099/11100 added help text

* Reworked switch statement to compare string instead

* Fix typo

* Update CDash mode

* Correct name of threadsafe

* Correct option name

* Undo accidental commit

* Note LLVM 10 to 11 format default changes

* Update format plugin

* Undo clang-format version 11 changes

* One more correction

* Update supported platforms

* Revert whitespace changes

* Correct whitespace

* Changes from PR#3

* HDFFV-11213 added option to control gcc10 warnings diagnostics

* HDFFV-11212 Use the new references correctly in JNI utility and tests

* format source

* Fix typo

* Add new test file

* HDFFV-11212 - update test and remove unused arg

* Minor non-space formatting changes

* Use H5I_INVALID_ID instead of "-1"

* source formatting

* add missing testfile, update jni function

* Undo commit of debug code

* remove mislocated file

* Fix h5repack test for handling of fapls and id close

* Update h5diff test files usage text

* HDFFV-11212 add new ref tests for JNI export dataset

* src format update

* Remove blank line typo

* src format typo

* long double requires %Lg

* Another long double foramt specifer S.B. %Lg

* issue with t128bit test

* Windows issue with h5dump and type.

* Fix review issues

* refactor function nesting and fix error checks

* format fixes

* Remove untested functions and javadoc quiet comments

* Restore TRY block.

* Change string append errors to memory exception

* revert to H5_JNI_FATAL_ERROR - support functions need work

* Add assertion error for h5util functions

* remove duplicate function

* format fix

* Revert HD function error handling

* Update copyright comments

1 files changed, 12 insertions, 12 deletions

diff --git a/java/examples/datatypes/H5Ex_T_ObjectReference.java b/java/examples/datatypes/H5Ex_T_ObjectReference.java
index 97f02af..0099bfa 100644
--- a/java/examples/datatypes/H5Ex_T_ObjectReference.java
+++ b/java/examples/datatypes/H5Ex_T_ObjectReference.java
@@ -65,11 +65,11 @@ public class H5Ex_T_ObjectReference {
     }
 
     private static void writeObjRef() {
-        long file_id = -1;
-        long dataspace_id = -1;
-        long filespace_id = -1;
-        long group_id = -1;
-        long dataset_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long dataspace_id = HDF5Constants.H5I_INVALID_HID;
+        long filespace_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
+        long dataset_id = HDF5Constants.H5I_INVALID_HID;
         long[] dims = { DIM0 };
         byte[][] dset_data = new byte[DIM0][8];
 
@@ -90,9 +90,9 @@ public class H5Ex_T_ObjectReference {
                         HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT);
                 if (dataset_id >= 0)
                     H5.H5Dclose(dataset_id);
-                dataset_id = -1;
+                dataset_id = HDF5Constants.H5I_INVALID_HID;
                 H5.H5Sclose(dataspace_id);
-                dataspace_id = -1;
+                dataspace_id = HDF5Constants.H5I_INVALID_HID;
             }
         }
         catch (Exception e) {
@@ -106,7 +106,7 @@ public class H5Ex_T_ObjectReference {
                         HDF5Constants.H5P_DEFAULT);
             if (group_id >= 0)
                 H5.H5Gclose(group_id);
-            group_id = -1;
+            group_id = HDF5Constants.H5I_INVALID_HID;
         }
         catch (Exception e) {
             e.printStackTrace();
@@ -187,11 +187,11 @@ public class H5Ex_T_ObjectReference {
     }
 
     private static void readObjRef() {
-        long file_id = -1;
-        long dataset_id = -1;
-        long dataspace_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long dataset_id = HDF5Constants.H5I_INVALID_HID;
+        long dataspace_id = HDF5Constants.H5I_INVALID_HID;
         int object_type = -1;
-        long object_id = -1;
+        long object_id = HDF5Constants.H5I_INVALID_HID;
         long[] dims = { DIM0 };
         byte[][] dset_data;