Accept multi-line WHERE clauses in WQL queries

src/main/java/org/metricshub/winrm/WmiHelper.java

@@ -43,7 +43,7 @@ private WmiHelper() {}
 	 */
 	private static final Pattern WQL_SIMPLE_SELECT_PATTERN = Pattern.compile(
 		"^\\s*SELECT\\s+(\\*|(?!SELECT|FROM|WHERE)[a-z0-9._]+|((?!SELECT|FROM|WHERE)[a-z0-9._]+\\s*,\\s*)+((?!SELECT|FROM|WHERE)[a-z0-9._]+))\\s+FROM\\s+((?!WHERE|FROM)\\w+)\\s*(WHERE\\s+.*)?$",
-		Pattern.CASE_INSENSITIVE
+		Pattern.CASE_INSENSITIVE | Pattern.DOTALL
 	);
 
 	/**

src/site/markdown/wql.md

@@ -140,7 +140,8 @@ SELECT Name FROM Win32_Process WHERE Name = 'explorer.exe'
 ```
 
 The grammar is a single `SELECT` of either `*` or a comma-separated property list, a `FROM` clause
-naming one class, and an optional `WHERE` clause. Anything else, such as `ASSOCIATORS OF`,
+naming one class, and an optional `WHERE` clause. Line breaks are accepted wherever whitespace is,
+so queries written as Java text blocks work as is. Anything else, such as `ASSOCIATORS OF`,
 `REFERENCES OF` or event queries (`WITHIN`), is rejected: an invalid query raises a
 [`WqlSyntaxException`](apidocs/org/metricshub/winrm/exceptions/WqlSyntaxException.html) before
 anything is sent to the host.

src/test/java/org/metricshub/winrm/WmiHelperTest.java

@@ -0,0 +1,63 @@
+package org.metricshub.winrm;
+
+/*-
+ * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
+ * WinRM Java Client
+ * ჻჻჻჻჻჻
+ * Copyright 2023 - 2026 MetricsHub
+ * ჻჻჻჻჻჻
+ * 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.
+ * ╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱
+ */
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+class WmiHelperTest {
+
+	@Test
+	void isValidWqlAcceptsSingleLineQueries() {
+		assertTrue(WmiHelper.isValidWql("SELECT * FROM Win32_Service"));
+		assertTrue(WmiHelper.isValidWql("SELECT Name FROM Win32_Service WHERE State = 'Running' AND StartMode = 'Auto'"));
+	}
+
+	@Test
+	void isValidWqlAcceptsLineBreaksBeforeWhere() {
+		assertTrue(WmiHelper.isValidWql("SELECT Name FROM Win32_Service\nWHERE State = 'Running'"));
+	}
+
+	@Test
+	void isValidWqlAcceptsMultiLineWhereClause() {
+		assertTrue(
+			WmiHelper.isValidWql("SELECT Name FROM Win32_Service\nWHERE State = 'Running'\n  AND StartMode = 'Auto'\n")
+		);
+		assertTrue(
+			WmiHelper.isValidWql(
+				"SELECT Name, ProcessId\r\nFROM Win32_Service\r\nWHERE State = 'Running'\r\n  AND StartMode = 'Auto'"
+			)
+		);
+	}
+
+	@Test
+	void isValidWqlRejectsNonSelectQueries() {
+		assertFalse(WmiHelper.isValidWql("ASSOCIATORS OF {Win32_Service.Name='W32Time'}"));
+		assertFalse(WmiHelper.isValidWql("REFERENCES OF {Win32_Service.Name='W32Time'}"));
+		assertFalse(
+			WmiHelper
+				.isValidWql("SELECT * FROM __InstanceModificationEvent WITHIN 1\nWHERE TargetInstance ISA 'Win32_Service'")
+		);
+		assertFalse(WmiHelper.isValidWql("SELECT Name FROM Win32_Service\nSELECT Name FROM Win32_Process"));
+		assertFalse(WmiHelper.isValidWql("SELECT Name FROM Win32_Service WHERE"));
+	}
+}