1 files changed, 71 insertions, 0 deletions
diff --git a/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/launch/EquinoxFWClassLoader.java b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/launch/EquinoxFWClassLoader.java
new file mode 100644
index 000000000..7011b5b13
--- /dev/null
+++ b/bundles/org.eclipse.osgi/container/src/org/eclipse/osgi/launch/EquinoxFWClassLoader.java
@@ -0,0 +1,71 @@
+/*******************************************************************************
+ * Copyright (c) 2008, 2010 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.osgi.launch;
+
+import java.net.URL;
+import java.net.URLClassLoader;
+
+class EquinoxFWClassLoader extends URLClassLoader {
+
+	private static final String[] DELEGATE_PARENT_FIRST = {"java.", "org.osgi.", "org.eclipse.osgi.launch.", "org.eclipse.osgi.service.", "org.eclipse.osgi.framework.log", "org.eclipse.osgi.framework.adaptor", "org.eclipse.osgi.framework.internal.core.ReferenceInputStream"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$
+	private static final String[] DELEGATE_CHILD_FIRST = new String[0]; // nothing right now is skipped
+
+	private final ClassLoader parent;
+
+	public EquinoxFWClassLoader(URL[] urls, ClassLoader parent) {
+		super(urls, parent);
+		this.parent = parent;
+	}
+
+	protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
+		Class<?> clazz = findLoadedClass(name);
+		if (clazz != null)
+			return clazz;
+
+		boolean childFirst = childFirst(name);
+		ClassNotFoundException cnfe = null;
+
+		if (childFirst)
+			try {
+				clazz = findClass(name);
+			} catch (ClassNotFoundException e) {
+				// continue
+				cnfe = e;
+			}
+
+		if (clazz == null)
+			try {
+				clazz = parent.loadClass(name);
+			} catch (ClassNotFoundException e) {
+				// continue
+			}
+
+		if (clazz == null && cnfe != null)
+			throw cnfe;
+		if (clazz == null && !childFirst)
+			clazz = findClass(name);
+
+		if (resolve)
+			resolveClass(clazz);
+		return clazz;
+	}
+
+	private boolean childFirst(String name) {
+		for (int i = DELEGATE_CHILD_FIRST.length - 1; i >= 0; i--)
+			if (name.startsWith(DELEGATE_CHILD_FIRST[i]))
+				return true;
+		for (int i = DELEGATE_PARENT_FIRST.length - 1; i >= 0; i--)
+			if (name.startsWith(DELEGATE_PARENT_FIRST[i]))
+				return false;
+		return true;
+
+	}
+}