feat: Introduce Native Image testing build script changes (#249)

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https://source.cloud.google.com/results/invocations/7661bbe8-b0e7-4dc7-b7bb-09db5a3f3b00/targets

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Source-Link: googleapis/synthtool@d45942b

.kokoro/build.sh

@@ -69,6 +69,11 @@ integration)
       verify
     RETURN_CODE=$?
     ;;
+graalvm)
+    # Run Unit and Integration Tests with Native Image
+    mvn test -Pnative -Penable-integration-tests
+    RETURN_CODE=$?
+    ;;
 samples)
     SAMPLES_DIR=samples
     # only run ITs in snapshot/ on presubmit PRs. run ITs in all 3 samples/ subdirectories otherwise.

.kokoro/presubmit/graalvm-native.cfg

@@ -0,0 +1,33 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/graalvm"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "graalvm"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}

proto-google-common-protos/src/main/java/com/google/api/RoutingParameter.java

@@ -319,10 +319,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getFieldBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(field_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, field_);
     }
-    if (!getPathTemplateBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pathTemplate_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, pathTemplate_);
     }
     unknownFields.writeTo(output);
@@ -334,10 +334,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getFieldBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(field_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, field_);
     }
-    if (!getPathTemplateBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pathTemplate_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, pathTemplate_);
     }
     size += unknownFields.getSerializedSize();

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-common-protos.git",
-        "sha": "08b5c8545ed6f29a11ae4d3f061df47f40234bd1"
+        "sha": "fe2eae8c4d902c190c6e24bd02a41dc916f36db4"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "a4be3384ccb92364795d981f2863f6986fcee620"
+        "sha": "d45942be8066ad57bd0509f4a16e1fac78ecc50f"
       }
     }
   ],
@@ -46,7 +46,6 @@
     ".kokoro/common.sh",
     ".kokoro/continuous/common.cfg",
     ".kokoro/continuous/java8.cfg",
-    ".kokoro/dependencies.sh",
     ".kokoro/nightly/common.cfg",
     ".kokoro/nightly/integration.cfg",
     ".kokoro/nightly/java11.cfg",
@@ -59,6 +58,7 @@
     ".kokoro/presubmit/clirr.cfg",
     ".kokoro/presubmit/common.cfg",
     ".kokoro/presubmit/dependencies.cfg",
+    ".kokoro/presubmit/graalvm-native.cfg",
     ".kokoro/presubmit/integration.cfg",
     ".kokoro/presubmit/java11.cfg",
     ".kokoro/presubmit/java7.cfg",