Fix and unmute VectorSystemPropertyTests (#115927)

Author: ChrisHegarty

libs/native/build.gradle

@@ -21,6 +21,11 @@ dependencies {
   }
 }
 
+tasks.named("test").configure {
+  // this is necessary so that VectorSystemPropertyTests can invoke java
+  systemProperty "tests.system_call_filter", "false"
+}
+
 tasks.withType(CheckForbiddenApisTask).configureEach {
   replaceSignatureFiles 'jdk-signatures'
 }

libs/native/src/test/java/org/elasticsearch/nativeaccess/VectorSystemPropertyTests.java

@@ -9,6 +9,7 @@
 
 package org.elasticsearch.nativeaccess;
 
+import org.apache.lucene.util.Constants;
 import org.elasticsearch.core.SuppressForbidden;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.test.ESTestCase.WithoutSecurityManager;
@@ -34,6 +35,8 @@ public class VectorSystemPropertyTests extends ESTestCase {
 
     @BeforeClass
     public static void setup() throws Exception {
+        assumeTrue("native scorers are not on Windows", Constants.WINDOWS == false);
+
         var classBytes = InMemoryJavaCompiler.compile("p.Test", TEST_SOURCE);
         Map<String, byte[]> jarEntries = new HashMap<>();
         jarEntries.put("p/Test.class", classBytes);
@@ -47,7 +50,8 @@ public void testSystemPropertyDisabled() throws Exception {
         var process = new ProcessBuilder(
             getJavaExecutable(),
             "-D" + ENABLE_JDK_VECTOR_LIBRARY + "=false",
-            "-Xms4m",
+            "-Xms16m",
+            "-Xmx16m",
             "-cp",
             jarPath + File.pathSeparator + System.getProperty("java.class.path"),
             "-Des.nativelibs.path=" + System.getProperty("es.nativelibs.path"),

muted-tests.yml

@@ -17,9 +17,6 @@ tests:
 - class: "org.elasticsearch.xpack.searchablesnapshots.FrozenSearchableSnapshotsIntegTests"
   issue: "https://github.com/elastic/elasticsearch/issues/110408"
   method: "testCreateAndRestorePartialSearchableSnapshot"
-- class: org.elasticsearch.nativeaccess.VectorSystemPropertyTests
-  method: testSystemPropertyDisabled
-  issue: https://github.com/elastic/elasticsearch/issues/110949
 - class: org.elasticsearch.packaging.test.DockerTests
   method: test021InstallPlugin
   issue: https://github.com/elastic/elasticsearch/issues/110343