diff --git a/build-jmeos.sh b/build-jmeos.sh
index f6a59fb..5c165c3 100755
--- a/build-jmeos.sh
+++ b/build-jmeos.sh
@@ -115,6 +115,26 @@ LIBMEOS_SO="$(find "${MDB_DIR}/build" -name 'libmeos.so' -print -quit)"
 [ -n "${LIBMEOS_SO}" ] || { echo "error: libmeos.so not produced by the MEOS build" >&2; exit 1; }
 log "Built ${LIBMEOS_SO}"
 
+# ---------------------------------------------------------------------------
+# 1b. Provision MEOS's SRID/network reference data at its default runtime path.
+# ---------------------------------------------------------------------------
+# libmeos resolves SRIDs by reading spatial_ref_sys.csv from a fixed default
+# path (meos/src/geo/tspatial_transform_meos.c: SPATIAL_REF_SYS_CSV =
+# "/usr/local/share/spatial_ref_sys.csv"). A full `cmake --install` would place
+# it there (meos/CMakeLists.txt), but this script only builds the `meos` target,
+# so the data files are staged explicitly. Without them, any SRID-touching call
+# (npoint, tgeompoint) makes libmeos print "Cannot open the spatial_ref_sys.csv
+# file" to stdout, which corrupts the surefire fork channel and terminates the
+# JVM under test ("The forked VM terminated without properly saying goodbye").
+MEOS_DATA_DIR="${MEOS_DATA_DIR:-/usr/local/share}"
+log "Provisioning MEOS reference data into ${MEOS_DATA_DIR}"
+provision_data() {
+  local src="$1" dst="$2"
+  install -Dm644 "${src}" "${dst}" 2>/dev/null || sudo install -Dm644 "${src}" "${dst}"
+}
+provision_data "${MDB_DIR}/meos/src/geo/spatial_ref_sys.csv" "${MEOS_DATA_DIR}/spatial_ref_sys.csv"
+provision_data "${MDB_DIR}/meos/examples/data/ways1000.csv"  "${MEOS_DATA_DIR}/ways1000.csv"
+
 # ---------------------------------------------------------------------------
 # 2. Build JMEOS.jar against that libmeos.so.
 # ---------------------------------------------------------------------------
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeCbuffer.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeCbuffer.java
index 269f8a8..f2f0f19 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeCbuffer.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeCbuffer.java
@@ -100,7 +100,7 @@ public static int cbuffer_hash(Pointer arg0) {
      * <p>Pure per-event; safe in any scalar position.</p>
      * <p>Classification: scalar comparison/hash</p>
      */
-    public static int cbuffer_hash_extended(Pointer arg0, int arg1) {
+    public static long cbuffer_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "cbuffer_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
@@ -1868,12 +1868,12 @@ public static String cbuffer_as_ewkt(Pointer arg0, int arg1) {
      * <p>I/O / catalog / lifecycle helper.</p>
      * <p>Classification: IO/serialization</p>
      */
-    public static String cbuffer_as_hexwkb(Pointer arg0, byte arg1, Pointer arg2) {
+    public static String cbuffer_as_hexwkb(Pointer arg0, byte arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "cbuffer_as_hexwkb requires libmeos — set -Dmobilitykafka.meos.enabled=true");
         }
-        return GeneratedFunctions.cbuffer_as_hexwkb(arg0, arg1, arg2);
+        return GeneratedFunctions.cbuffer_as_hexwkb(arg0, arg1);
     }
 
     /**
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeNpoint.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeNpoint.java
index 4cf74ec..5f84e0c 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeNpoint.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreeNpoint.java
@@ -152,7 +152,7 @@ public static int npoint_hash(Pointer arg0) {
      * <p>Pure per-event; safe in any scalar position.</p>
      * <p>Classification: scalar comparison/hash</p>
      */
-    public static int npoint_hash_extended(Pointer arg0, int arg1) {
+    public static long npoint_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "npoint_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreePose.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreePose.java
index e17b637..9fcd881 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreePose.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsFreePose.java
@@ -139,7 +139,7 @@ public static int pose_hash(Pointer arg0) {
      * <p>Pure per-event; safe in any scalar position.</p>
      * <p>Classification: scalar comparison/hash</p>
      */
-    public static int pose_hash_extended(Pointer arg0, int arg1) {
+    public static long pose_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "pose_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
@@ -906,12 +906,12 @@ public static String pose_as_ewkt(Pointer arg0, int arg1) {
      * <p>I/O / catalog / lifecycle helper.</p>
      * <p>Classification: IO/serialization</p>
      */
-    public static String pose_as_hexwkb(Pointer arg0, byte arg1, Pointer arg2) {
+    public static String pose_as_hexwkb(Pointer arg0, byte arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "pose_as_hexwkb requires libmeos — set -Dmobilitykafka.meos.enabled=true");
         }
-        return GeneratedFunctions.pose_as_hexwkb(arg0, arg1, arg2);
+        return GeneratedFunctions.pose_as_hexwkb(arg0, arg1);
     }
 
     /**
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSTBox.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSTBox.java
index 2cec49a..f8d3e78 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSTBox.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSTBox.java
@@ -275,7 +275,7 @@ public static int stbox_hash(Pointer arg0) {
      * <p>Object-model role: {@code accessor}.</p>
      * <p>Classification: role=accessor</p>
      */
-    public static int stbox_hash_extended(Pointer arg0, int arg1) {
+    public static long stbox_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "stbox_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
@@ -695,12 +695,12 @@ public static Pointer stbox_zmin(Pointer arg0) {
      * <p>Object-model role: {@code output}.</p>
      * <p>Classification: IO/serialization</p>
      */
-    public static String stbox_as_hexwkb(Pointer arg0, byte arg1, Pointer arg2) {
+    public static String stbox_as_hexwkb(Pointer arg0, byte arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "stbox_as_hexwkb requires libmeos — set -Dmobilitykafka.meos.enabled=true");
         }
-        return GeneratedFunctions.stbox_as_hexwkb(arg0, arg1, arg2);
+        return GeneratedFunctions.stbox_as_hexwkb(arg0, arg1);
     }
 
     /**
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSet.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSet.java
index b80a2f3..47a3cfd 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSet.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSet.java
@@ -162,7 +162,7 @@ public static int set_hash(Pointer arg0) {
      * <p>Object-model role: {@code accessor}.</p>
      * <p>Classification: role=accessor</p>
      */
-    public static int set_hash_extended(Pointer arg0, int arg1) {
+    public static long set_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "set_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpan.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpan.java
index 75102b4..8f93ff9 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpan.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpan.java
@@ -162,7 +162,7 @@ public static int span_hash(Pointer arg0) {
      * <p>Object-model role: {@code accessor}.</p>
      * <p>Classification: role=accessor</p>
      */
-    public static int span_hash_extended(Pointer arg0, int arg1) {
+    public static long span_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "span_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpanSet.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpanSet.java
index 3eb5dad..7f0c714 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpanSet.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsSpanSet.java
@@ -148,7 +148,7 @@ public static int spanset_hash(Pointer arg0) {
      * <p>Object-model role: {@code accessor}.</p>
      * <p>Classification: role=accessor</p>
      */
-    public static int spanset_hash_extended(Pointer arg0, int arg1) {
+    public static long spanset_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "spanset_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
diff --git a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsTBox.java b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsTBox.java
index 2fd6827..4f65f6e 100644
--- a/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsTBox.java
+++ b/kafka-streams-app/src/main/java/org/mobilitydb/meos/MeosOpsTBox.java
@@ -176,7 +176,7 @@ public static int tbox_hash(Pointer arg0) {
      * <p>Object-model role: {@code accessor}.</p>
      * <p>Classification: role=accessor</p>
      */
-    public static int tbox_hash_extended(Pointer arg0, int arg1) {
+    public static long tbox_hash_extended(Pointer arg0, long arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "tbox_hash_extended requires libmeos — set -Dmobilitykafka.meos.enabled=true");
@@ -400,12 +400,12 @@ public static Pointer tbox_xmin_inc(Pointer arg0) {
      * <p>Object-model role: {@code output}.</p>
      * <p>Classification: IO/serialization</p>
      */
-    public static String tbox_as_hexwkb(Pointer arg0, byte arg1, Pointer arg2) {
+    public static String tbox_as_hexwkb(Pointer arg0, byte arg1) {
         if (!MEOS_AVAILABLE) {
             throw new UnsupportedOperationException(
                 "tbox_as_hexwkb requires libmeos — set -Dmobilitykafka.meos.enabled=true");
         }
-        return GeneratedFunctions.tbox_as_hexwkb(arg0, arg1, arg2);
+        return GeneratedFunctions.tbox_as_hexwkb(arg0, arg1);
     }
 
     /**