fix(bq jdbc): allow & ignore unknown parameters

java-bigquery/google-cloud-bigquery-jdbc/src/main/java/com/google/cloud/bigquery/jdbc/BigQueryJdbcUrlUtility.java

@@ -706,10 +706,16 @@ private static Map<String, String> parseUrlInternal(String url) {
       if (kv.length != 2 || !PROPERTY_NAME_MAP.containsKey(key)) {
         String ref = (kv.length == 2) ? key : part;
         String safeRef = ref.length() > 32 ? ref.substring(0, 32) + "..." : ref;
-        throw new BigQueryJdbcRuntimeException(
-            String.format("Wrong value or unknown setting: %s", safeRef));
+        // Some tools can pass unknown keys. In order not to break compatibility, throw
+        // an exception only with incorrect format, otherwise log an error.
+        if (kv.length != 2) {
+          throw new BigQueryJdbcRuntimeException(
+              String.format("Wrong value or unknown setting: %s", safeRef));
+        } else {
+          LOG.warning("Wrong value or unknown setting: %s", safeRef);
+          continue;
+        }
       }
-
       map.put(PROPERTY_NAME_MAP.get(key), CharEscapers.decodeUriPath(kv[1].replace("+", "%2B")));
     }
     return Collections.unmodifiableMap(map);

java-bigquery/google-cloud-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/BigQueryDriverTest.java

@@ -16,10 +16,7 @@
 package com.google.cloud.bigquery.jdbc;
 
 import static com.google.common.truth.Truth.assertThat;
-import static org.junit.jupiter.api.Assertions.fail;
 
-import com.google.cloud.bigquery.exception.BigQueryJdbcException;
-import com.google.cloud.bigquery.exception.BigQueryJdbcRuntimeException;
 import java.sql.Connection;
 import java.sql.DriverPropertyInfo;
 import java.sql.SQLException;
@@ -98,15 +95,13 @@ public void testJDBCCompliantReturnsFalse() {
   }
 
   @Test
-  public void testConnectWithInvalidUrlChainsException() {
-    try {
-      bigQueryDriver.connect(
-          "jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;InvalidProperty=Value",
-          new Properties());
-      fail("Expected SQLException");
-    } catch (SQLException e) {
-      assertThat((Throwable) e).isInstanceOf(BigQueryJdbcException.class);
-      assertThat(e.getCause()).isInstanceOf(BigQueryJdbcRuntimeException.class);
-    }
+  public void testConnectWithInvalidUrlChainsNoException() throws SQLException {
+    Connection connection =
+        bigQueryDriver.connect(
+            "jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;"
+                + "OAuthType=2;OAuthAccessToken=redactedToken;ProjectId=t;"
+                + "InvalidProperty=Value",
+            new Properties());
+    assertThat(connection.isClosed()).isFalse();
   }
 }

java-bigquery/google-cloud-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/BigQueryJdbcLoggingBaseTest.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2026 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.bigquery.jdbc;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Handler;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+
+public abstract class BigQueryJdbcLoggingBaseTest extends BigQueryJdbcBaseTest {
+
+  protected List<LogRecord> capturedLogs = new ArrayList<>();
+  private Handler handler;
+  private Logger logger;
+  private long threadId;
+
+  @BeforeEach
+  public void setUpLogValidator() {
+    logger = BigQueryJdbcRootLogger.getRootLogger();
+    capturedLogs.clear();
+    threadId = Thread.currentThread().getId();
+    handler =
+        new Handler() {
+          @Override
+          public void publish(LogRecord record) {
+            if (record.getThreadID() == threadId) {
+              capturedLogs.add(record);
+            }
+          }
+
+          @Override
+          public void flush() {}
+
+          @Override
+          public void close() throws SecurityException {}
+        };
+    logger.addHandler(handler);
+  }
+
+  @AfterEach
+  public void tearDownLogValidator() {
+    if (logger != null && handler != null) {
+      logger.removeHandler(handler);
+    }
+  }
+
+  protected boolean assertLogContains(String snippet) {
+    return capturedLogs.stream().anyMatch(r -> r.getMessage().contains(snippet));
+  }
+}

java-bigquery/google-cloud-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/BigQueryJdbcUrlUtilityTest.java

@@ -17,17 +17,16 @@
 package com.google.cloud.bigquery.jdbc;
 
 import static com.google.common.truth.Truth.assertThat;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
 
-import com.google.cloud.bigquery.exception.BigQueryJdbcRuntimeException;
 import java.util.Collections;
 import java.util.Map;
 import java.util.Properties;
 import org.junit.jupiter.api.Test;
 
-public class BigQueryJdbcUrlUtilityTest {
+public class BigQueryJdbcUrlUtilityTest extends BigQueryJdbcLoggingBaseTest {
 
   @Test
   public void testParsePropertyWithNoDefault() {
@@ -41,27 +40,25 @@ public void testParsePropertyWithNoDefault() {
   }
 
   @Test
-  public void testParseUrlWithUnknownProperty_throwsException() {
+  public void testParseUrlWithUnknownProperty_no_exception() {
     String url =
         "jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;"
             + "ProjectId=MyBigQueryProject;"
             + "UnknownProperty=SomeValue";
 
-    assertThrows(
-        BigQueryJdbcRuntimeException.class,
-        () -> BigQueryJdbcUrlUtility.parseUriProperty(url, "ProjectId"));
+    BigQueryJdbcUrlUtility.parseUriProperty(url, "ProjectId");
+    assertThat(assertLogContains("Wrong value or unknown setting")).isTrue();
   }
 
   @Test
-  public void testParseUrlWithTypo_throwsException() {
+  public void testParseUrlWithTypo_no_exception() {
     String url =
         "jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;"
             + "ProjectId=MyBigQueryProject;"
             + "ProjeectId=TypoValue";
 
-    assertThrows(
-        BigQueryJdbcRuntimeException.class,
-        () -> BigQueryJdbcUrlUtility.parseUriProperty(url, "ProjectId"));
+    assertDoesNotThrow(() -> BigQueryJdbcUrlUtility.parseUriProperty(url, "ProjectId"));
+    assertThat(assertLogContains("Wrong value or unknown setting")).isTrue();
   }
 
   @Test
@@ -72,7 +69,7 @@ public void testParsePropertyWithDefault() {
             + "OAuthAccessToken=RedactedToken";
 
     String result = BigQueryJdbcUrlUtility.parseUriProperty(url, "OAuthType");
-    assertThat(result).isEqualTo(null);
+    assertThat(result).isNull();
   }
 
   @Test
@@ -143,14 +140,12 @@ public void testParseUrl_longUnknownProperty_sanitized() {
     String longKey = String.join("", Collections.nCopies(50, "a"));
     String url = "jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;" + longKey + "=value";
 
-    BigQueryJdbcRuntimeException e =
-        assertThrows(
-            BigQueryJdbcRuntimeException.class, () -> BigQueryJdbcUrlUtility.parseUrl(url));
-
-    assertThat(e.getMessage()).contains("Wrong value or unknown setting: ");
-    assertThat(e.getMessage()).contains("...");
-    assertThat(e.getMessage()).doesNotContain(longKey);
-    assertThat(e.getMessage().length()).isLessThan(100);
+    assertDoesNotThrow(() -> BigQueryJdbcUrlUtility.parseUrl(url));
+    String message = capturedLogs.get(0).getMessage();
+    assertThat(message).contains("Wrong value or unknown setting: ");
+    assertThat(message).contains("...");
+    assertThat(message).doesNotContain(longKey);
+    assertThat(message.length()).isLessThan(100);
   }
 
   @Test