[SNOW-3249917] JDBC removal Step 11d: Demote JDBC to test scope

- Change snowflake-jdbc-thin scope to test in pom.xml (used only by
  TestUtils.java for IT result verification)
- Remove JDBC shade relocation rules from Maven Shade plugin

JDBC is no longer shipped in the SDK jar. Zero net.snowflake.client
code references in production code.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sfc-gh-ggeng

pom.xml

@@ -887,11 +887,6 @@
       <groupId>net.minidev</groupId>
       <artifactId>json-smart</artifactId>
     </dependency>
-    <!-- Snowflake JDBC used to connect to the service-->
-    <dependency>
-      <groupId>net.snowflake</groupId>
-      <artifactId>snowflake-jdbc-thin</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-lang3</artifactId>
@@ -1017,6 +1012,12 @@
       <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
+    <!-- Snowflake JDBC — test scope only (used by TestUtils for IT result verification) -->
+    <dependency>
+      <groupId>net.snowflake</groupId>
+      <artifactId>snowflake-jdbc-thin</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
@@ -1514,14 +1515,7 @@
                   <pattern>com.nimbusds</pattern>
                   <shadedPattern>${shadeBase}.com.nimbusds</shadedPattern>
                 </relocation>
-                <relocation>
-                  <pattern>net.snowflake.client</pattern>
-                  <shadedPattern>${shadeBase}.net.snowflake.client</shadedPattern>
-                </relocation>
-                <relocation>
-                  <pattern>com.snowflake.client.jdbc</pattern>
-                  <shadedPattern>${shadeBase}.com.snowflake.client.jdbc</shadedPattern>
-                </relocation>
+                <!-- JDBC shade relocations removed — JDBC is now test-scope only -->
                 <relocation>
                   <pattern>org.bouncycastle</pattern>
                   <shadedPattern>${shadeBase}.org.bouncycastle</shadedPattern>

src/main/java/net/snowflake/ingest/streaming/internal/fileTransferAgent/Constants.java

@@ -0,0 +1,66 @@
+/*
+ * Replicated from snowflake-jdbc (v3.25.1)
+ * Source: https://github.com/snowflakedb/snowflake-jdbc/blob/v3.25.1/src/main/java/net/snowflake/client/core/Constants.java
+ *
+ * Permitted differences: package declaration,
+ * SnowflakeUtil.systemGetProperty -> StorageClientUtil.systemGetProperty.
+ */
+package net.snowflake.ingest.streaming.internal.fileTransferAgent;
+
+import static net.snowflake.ingest.streaming.internal.fileTransferAgent.StorageClientUtil.systemGetProperty;
+
+/*
+ * Constants used in JDBC implementation
+ */
+public final class Constants {
+  // Session expired error code as returned from Snowflake
+  public static final int SESSION_EXPIRED_GS_CODE = 390112;
+
+  // Cloud storage credentials expired error code
+  public static final int CLOUD_STORAGE_CREDENTIALS_EXPIRED = 240001;
+
+  // Session gone error code as returned from Snowflake
+  public static final int SESSION_GONE = 390111;
+
+  // Error code for all invalid id token cases during login request
+  public static final int ID_TOKEN_INVALID_LOGIN_REQUEST_GS_CODE = 390195;
+
+  public static final int OAUTH_ACCESS_TOKEN_EXPIRED_GS_CODE = 390318;
+
+  public static final int OAUTH_ACCESS_TOKEN_INVALID_GS_CODE = 390303;
+
+  // Error message for IOException when no space is left for GET
+  public static final String NO_SPACE_LEFT_ON_DEVICE_ERR = "No space left on device";
+
+  public enum OS {
+    WINDOWS,
+    LINUX,
+    MAC,
+    SOLARIS
+  }
+
+  private static OS os = null;
+
+  public static synchronized OS getOS() {
+    if (os == null) {
+      String operSys = systemGetProperty("os.name").toLowerCase();
+      if (operSys.contains("win")) {
+        os = OS.WINDOWS;
+      } else if (operSys.contains("nix") || operSys.contains("nux") || operSys.contains("aix")) {
+        os = OS.LINUX;
+      } else if (operSys.contains("mac")) {
+        os = OS.MAC;
+      } else if (operSys.contains("sunos")) {
+        os = OS.SOLARIS;
+      }
+    }
+    return os;
+  }
+
+  public static void clearOSForTesting() {
+    os = null;
+  }
+
+  public static final int MB = 1024 * 1024;
+  public static final long GB = 1024 * 1024 * 1024;
+}