[573485] Refer to 1.7.30 slf4j api bundle when running preview server

plugins/org.eclipse.wst.server.preview.adapter/src/org/eclipse/wst/server/preview/adapter/internal/core/PreviewLaunchConfigurationDelegate.java

diff --git a/plugins/org.eclipse.wst.server.preview.adapter/src/org/eclipse/wst/server/preview/adapter/internal/core/PreviewLaunchConfigurationDelegate.java b/plugins/org.eclipse.wst.server.preview.adapter/src/org/eclipse/wst/server/preview/adapter/internal/core/PreviewLaunchConfigurationDelegate.java
index 66770d2..e9ccee7 100644
--- a/plugins/org.eclipse.wst.server.preview.adapter/src/org/eclipse/wst/server/preview/adapter/internal/core/PreviewLaunchConfigurationDelegate.java
+++ b/plugins/org.eclipse.wst.server.preview.adapter/src/org/eclipse/wst/server/preview/adapter/internal/core/PreviewLaunchConfigurationDelegate.java
@@ -50,7 +50,7 @@
 	// corresponds to CLASSPATH_BIN_INDEX_PREVIEW_SERVER	
 	private static final String[] REQUIRED_BUNDLE_IDS = new String[] {
 		getBundleForClass(javax.servlet.ServletContext.class),
-		"slf4j.api",
+		"org.slf4j.api",
 		"org.eclipse.jetty.http",
 		"org.eclipse.jetty.io",
 		"org.eclipse.jetty.security",