Fixed ModuleCompilationTests failing on Java 17 JVM's

After switching default compilation level to 1.8 few tests that were
working on Java 17 JVMs started to fail because the code snippets used
compile now properly. The test fail didn't show up in jenkins because
Jenkins runs on Java 22 but the code snippets were tested only on Java
17 JVM's.

See eclipse-jdt#2536

org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ModuleCompilationTests.java

@@ -4002,7 +4002,7 @@ public void testReleaseOption4() throws Exception {
 					"}",
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		     + " --release 6 -source 1.6 -d \"" + OUTPUT_DIR + "\"",
+		     + " --release 8 -source 1.6 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "option -source is not supported when --release is used\n",
 		     true);
@@ -4057,26 +4057,22 @@ public void testReleaseOption7() throws Exception {
 	public void testReleaseOption8() throws Exception {
 		if (isJRE20Plus) return;
 		String output =
-				isJRE12Plus ?
-						"	public java.util.stream.Stream<String> emptyStream() {\n" +
-						"	       ^^^^^^^^^^^^^^^^\n" +
-						"java.util.stream cannot be resolved to a type\n" :
-							"	public java.util.stream.Stream<String> emptyStream() {\n" +
-							"	       ^^^^^^^^^^^^^^^^^^^^^^^\n" +
-							"java.util.stream.Stream cannot be resolved to a type\n";
+						"	public java.util.SequencedCollection<String> emptyCollection() {\n" +
+						"	       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
+						"java.util.SequencedCollection cannot be resolved to a type\n";
 
 		this.runNegativeTest(
 				new String[] {
 					"X.java",
 					"/** */\n" +
 					"public class X {\n" +
-					"	public java.util.stream.Stream<String> emptyStream() {\n" +
+					"	public java.util.SequencedCollection<String> emptyCollection() {\n" +
 					"		return null;\n" +
 					"	}\n" +
 					"}",
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		     + " --release 7 -d \"" + OUTPUT_DIR + "\"",
+		     + " --release 8 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "----------\n" +
     		 "1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 3)\n" +
@@ -4095,20 +4091,22 @@ public void testReleaseOption9() throws Exception {
 					"}\n" +
 					"public class X {\n" +
 					"  public static void main(String[] args) {\n" +
-					"    I i = (x, y) -> {\n" +
-					"      return x + y;\n" +
-					"    };\n" +
+					"    String i = \"\"\"\n" +
+					"    		\"\"\";\n" +
 					"  }\n" +
 					"}\n",
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		     + " --release 7 -d \"" + OUTPUT_DIR + "\"",
+		     + " --release 8 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "----------\n" +
-    		 "1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 6)\n" +
-    		 "	I i = (x, y) -> {\n" +
-    		 "	      ^^^^^^^^^\n" +
-    		 "Lambda expressions are allowed only at source level 1.8 or above\n" +
+			"""
+			1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 6)
+				String i = \"\"\"
+			    		\"\"\";
+				           ^^^^^^^^^^^^^
+			The Java feature 'Text Blocks' is only available with source level 15 and above
+			""" +
     		 "----------\n" +
     		 "1 problem (1 error)\n",
 		     true);
@@ -4133,7 +4131,7 @@ public void testReleaseOption10() throws Exception {
 					"}",
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		     + " --release 6 -d \"" + OUTPUT_DIR + "\"",
+		     + " --release 8 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "----------\n" +
     		 "1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 9)\n" +
@@ -4177,7 +4175,7 @@ public void _testReleaseOption12() throws Exception {
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\"" +
 		      " --system \"" + javaHome + "\"" +
-		     " --release 6 -d \"" + OUTPUT_DIR + "\"",
+		     " --release 8 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "----------\n" +
     		 "option --system not supported below compliance level 9",
@@ -4356,23 +4354,25 @@ public void testReleaseOption20() throws Exception {
 		this.runNegativeTest(
 				new String[] {
 					"X.java",
-					"import java.io.*;\n" +
+					"import java.util.*;\n" +
 					"\n" +
 					"public class X {\n" +
 					"	public static void main(String[] args) {\n" +
-					"		String str = Integer.toUnsignedString(1, 1);\n" +
+					"		String[] strings = List.of(\"\").toArray(String[]::new);\n" +
 					"	}\n" +
 					"}",
 				},
 		     "\"" + OUTPUT_DIR +  File.separator + "X.java\""
-		     + " --release 7 -d \"" + OUTPUT_DIR + "\"",
+		     + " --release 8 -d \"" + OUTPUT_DIR + "\"",
 		     "",
 		     "----------\n" +
-    		 "1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 5)\n" +
-    		 "	String str = Integer.toUnsignedString(1, 1);\n" +
-    		 "	                     ^^^^^^^^^^^^^^^^\n" +
-    		 "The method toUnsignedString(int, int) is undefined for the type Integer\n" +
-    		 "----------\n" +
+		     """
+				1. ERROR in ---OUTPUT_DIR_PLACEHOLDER---/X.java (at line 5)
+					String[] strings = List.of("").toArray(String[]::new);
+					                        ^^
+				The method of(String) is undefined for the type List
+		     """ +
+		     "----------\n" +
     		 "1 problem (1 error)\n",
 		     true);
 	}