Remove lingering instances of Default distribution in favour of Oss (#440)

Signed-off-by: Himanshu Setia <setiah@amazon.com>

buildSrc/src/integTest/groovy/org/opensearch/gradle/TestClustersPluginFuncTest.groovy

@@ -54,7 +54,7 @@ class TestClustersPluginFuncTest extends AbstractGradleFuncTest {
         buildFile << """
             testClusters {
               myCluster {
-                testDistribution = 'default'
+                testDistribution = 'oss'
               }
             }
 
@@ -80,7 +80,7 @@ class TestClustersPluginFuncTest extends AbstractGradleFuncTest {
         buildFile << """
             testClusters {
               myCluster {
-                testDistribution = 'default'
+                testDistribution = 'oss'
                 extraJarFile(file('${someJar().absolutePath}'))
               }
             }

buildSrc/src/main/groovy/org/opensearch/gradle/test/ClusterConfiguration.groovy

@@ -29,7 +29,7 @@ class ClusterConfiguration {
     private final Project project
 
     @Input
-    String distribution = 'default'
+    String distribution = 'oss'
 
     @Input
     int numNodes = 1

buildSrc/src/main/java/org/opensearch/gradle/testclusters/TestDistribution.java

@@ -23,6 +23,5 @@ package org.opensearch.gradle.testclusters;
  */
 public enum TestDistribution {
     INTEG_TEST,
-    DEFAULT,
     OSS
 }

client/rest-high-level/build.gradle

@@ -78,7 +78,7 @@ RestIntegTestTask asyncIntegTest = tasks.create("asyncIntegTest", RestIntegTestT
 check.dependsOn(asyncIntegTest)
 
 testClusters.all {
-  testDistribution = 'DEFAULT'
+  testDistribution = 'OSS'
   systemProperty 'opensearch.scripting.update.ctx_in_params', 'false'
   setting 'reindex.remote.whitelist', '[ "[::1]:*", "127.0.0.1:*" ]'
 

modules/lang-painless/build.gradle

@@ -91,7 +91,7 @@ dependencies {
 
 testClusters {
   generateContextCluster {
-    testDistribution = 'DEFAULT'
+    testDistribution = 'OSS'
   }
 }