diff --git a/jcl/jpp_configuration.xml b/jcl/jpp_configuration.xml
index 97aebc1f9b9..959f14bdb4d 100644
--- a/jcl/jpp_configuration.xml
+++ b/jcl/jpp_configuration.xml
@@ -206,7 +206,7 @@
 		<classpathentry kind="src" path="src/openj9.traceformat/share/classes"/>
 		<classpathentry kind="src" path="src/openj9.zosconditionhandling/share/classes"/>
 		<classpathentry kind="lib" path="/binaries/common/ibm/ibmjzos.jar"/>
-		<classpathentry kind="lib" path="/binaries/vm/third/rt-compressed.sunJava18.jar"/>
+		<classpathentry kind="lib" path="/binaries/vm/third/rt-compressed.sunJava19.jar"/>
 		<source path="src"/>
 		<parameter name="macro:define" value="JAVA_SPEC_VERSION=19"/>
 		<parameter name="msg:outputdir" value="java.base/share/classes/com/ibm/oti/util"/>
diff --git a/jcl/src/java.base/share/classes/java/lang/ClassLoader.java b/jcl/src/java.base/share/classes/java/lang/ClassLoader.java
index 1255babefa7..6b076dbe212 100644
--- a/jcl/src/java.base/share/classes/java/lang/ClassLoader.java
+++ b/jcl/src/java.base/share/classes/java/lang/ClassLoader.java
@@ -372,56 +372,53 @@ private ClassLoader(Void staticMethodHolder, String classLoaderName, ClassLoader
 	// This assumes that DelegatingClassLoader is constructed via ClassLoader(parentLoader)
 	isDelegatingCL = DELEGATING_CL.equals(this.getClass().getName());
 
-/*[IF Sidecar19-SE]*/
+/*[IF JAVA_SPEC_VERSION > 8]*/
 	if ((classLoaderName != null) && classLoaderName.isEmpty()) {
 		/*[MSG "K0645", "The given class loader name can't be empty."]*/
 		throw new IllegalArgumentException(com.ibm.oti.util.Msg.getString("K0645")); //$NON-NLS-1$
 	}
-/*[ENDIF]*/
+/*[ENDIF] JAVA_SPEC_VERSION > 8 */
 
 	if (parallelCapableCollection.containsKey(this.getClass())) {
 		isParallelCapable = true;
 	}
-	
+
 	// VM Critical: must set parent before calling initializeInternal()
 	parent = parentLoader;
-/*[IF !Sidecar19-SE]*/
+/*[IF JAVA_SPEC_VERSION == 8]*/
 	specialLoaderInited = (bootstrapClassLoader != null);
-/*[ENDIF]*/
+/*[ENDIF] JAVA_SPEC_VERSION == 8 */
 	if (specialLoaderInited) {
 		if (!lazyClassLoaderInit) {
 			VM.initializeClassLoader(this, VM.J9_CLASSLOADER_TYPE_OTHERS, isParallelCapable);
 		}
-/*[IF Sidecar19-SE]*/
+/*[IF JAVA_SPEC_VERSION > 8]*/
 		unnamedModule = new Module(this);
-/*[IF JAVA_SPEC_VERSION >= 15]*/
-		this.nativelibs = NativeLibraries.jniNativeLibraries(this);
-/*[ENDIF] JAVA_SPEC_VERSION >= 15 */
-/*[ENDIF]*/
-	} 
-/*[IF Sidecar19-SE]*/	
+/*[ENDIF] JAVA_SPEC_VERSION > 8 */
+	}
+/*[IF JAVA_SPEC_VERSION > 8]*/
 	else {
 		if (bootstrapClassLoader == null) {
 			// BootstrapClassLoader.unnamedModule is set by JVM_SetBootLoaderUnnamedModule
 			unnamedModule = null;
 			bootstrapClassLoader = this;
 			VM.initializeClassLoader(bootstrapClassLoader, VM.J9_CLASSLOADER_TYPE_BOOT, false);
-/*[IF JAVA_SPEC_VERSION >= 15]*/
-			this.nativelibs = NativeLibraries.jniNativeLibraries(null);
-/*[ENDIF] JAVA_SPEC_VERSION >= 15 */
 		} else {
 			// Assuming the second classloader initialized is platform classloader
 			VM.initializeClassLoader(this, VM.J9_CLASSLOADER_TYPE_PLATFORM, false);
 			specialLoaderInited = true;
 			unnamedModule = new Module(this);
-/*[IF JAVA_SPEC_VERSION >= 15]*/
-			this.nativelibs = NativeLibraries.jniNativeLibraries(this);
-/*[ENDIF] JAVA_SPEC_VERSION >= 15 */
 		}
 	}
 	this.classLoaderName = classLoaderName;
-/*[ENDIF]*/	
-	
+/*[ENDIF] JAVA_SPEC_VERSION > 8 */
+
+/*[IF JAVA_SPEC_VERSION >= 19]*/
+	this.nativelibs = NativeLibraries.newInstance((this == bootstrapClassLoader) ? null : this);
+/*[ELSEIF JAVA_SPEC_VERSION >= 17] */
+	this.nativelibs = NativeLibraries.jniNativeLibraries((this == bootstrapClassLoader) ? null : this);
+/*[ENDIF] JAVA_SPEC_VERSION >= 19 */
+
 	if (isAssertOptionFound) {
 		initializeClassLoaderAssertStatus();
 	}