NSHM Unit tests

When running NSHM unit tests in pipeline, instead of running the hazard calculation in the junit test itself the hazard calculation is done by running a java class and writing out the results to JSON files.

gradle/nshm.gradle

@@ -13,6 +13,8 @@ import org.yaml.snakeyaml.Yaml
 
 ext {
   nshmDir = "nshms";
+  envMemory = System.getenv("CI_RUNNER_MEMORY")
+  xmx = envMemory ? envMemory : "16g"
 
   // Download and unzip NSHM
   downloadNshm = {nshm ->
@@ -89,10 +91,12 @@ task testAlaska2007(type: Test) {
     exceptionFormat "full"
   }
 
+  systemProperties(System.getProperties())
+
   useJUnitPlatform()
   jvmArgs(
       "-Xms2g",
-      "-Xmx8g",
+      "-Xmx${xmx}",
       )
 
   filter {
@@ -113,10 +117,12 @@ task testAlaska2023(type: Test) {
     exceptionFormat "full"
   }
 
+  systemProperties(System.getProperties())
+
   useJUnitPlatform()
   jvmArgs(
       "-Xms2g",
-      "-Xmx8g",
+      "-Xmx${xmx}",
       )
 
   filter {
@@ -137,10 +143,12 @@ task testConus2018(type: Test) {
     exceptionFormat "full"
   }
 
+  systemProperties(System.getProperties())
+
   useJUnitPlatform()
   jvmArgs(
-      "-Xms2g",
-      "-Xmx8g",
+      "-Xms${xmx}",
+      "-Xmx${xmx}",
       )
 
   filter {
@@ -161,10 +169,12 @@ task testConus2023(type: Test) {
     exceptionFormat "full"
   }
 
+  systemProperties(System.getProperties())
+
   useJUnitPlatform()
   jvmArgs(
       "-Xms2g",
-      "-Xmx16g",
+      "-Xmx${xmx}",
       )
 
   filter {
@@ -185,10 +195,12 @@ task testHawaii2021(type: Test) {
     exceptionFormat "full"
   }
 
+  systemProperties(System.getProperties())
+
   useJUnitPlatform()
   jvmArgs(
       "-Xms2g",
-      "-Xmx8g",
+      "-Xmx${xmx}",
       )
 
   filter {