Some enhancements discovered whilst working on bugzilla bug 78954: Compiler cannot cope with 4000 jars on the classpath. These enhancements cause things to be done 'lazily' in BCEL.

bcel-builder/src/org/aspectj/apache/bcel/Repository.java

@@ -66,16 +66,18 @@ import java.io.*;
  * @see org.aspectj.apache.bcel.util.Repository
  * @see org.aspectj.apache.bcel.util.SyntheticRepository
  *
- * @version $Id: Repository.java,v 1.1 2004/11/18 14:48:12 aclement Exp $
+ * @version $Id: Repository.java,v 1.2 2004/11/18 16:00:19 aclement Exp $
  * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  */
 public abstract class Repository {
   private static org.aspectj.apache.bcel.util.Repository _repository =
-    SyntheticRepository.getInstance();
+  	null;
 
   /** @return currently used repository instance
    */
   public static org.aspectj.apache.bcel.util.Repository getRepository() {
+  	if (_repository == null) _repository =     SyntheticRepository.getInstance();
+
     return _repository;
   }
 
@@ -93,10 +95,10 @@ public abstract class Repository {
    */
   public static JavaClass lookupClass(String class_name) {
     try {
-      JavaClass clazz = _repository.findClass(class_name);
+      JavaClass clazz = getRepository().findClass(class_name);
 
       if(clazz == null) {
-	return _repository.loadClass(class_name);
+	return getRepository().loadClass(class_name);
       } else {
 	return clazz;
       }
@@ -110,7 +112,7 @@ public abstract class Repository {
    */
   public static JavaClass lookupClass(Class clazz) {
     try {
-      return _repository.loadClass(clazz);
+      return getRepository().loadClass(clazz);
     } catch(ClassNotFoundException ex) { return null; }
   }
 
@@ -118,14 +120,14 @@ public abstract class Repository {
    */
   public static ClassPath.ClassFile lookupClassFile(String class_name) {
     try {
-      return ClassPath.SYSTEM_CLASS_PATH.getClassFile(class_name);
+      return ClassPath.getSystemClassPath().getClassFile(class_name);
     } catch(IOException e) { return null; }
   }
 
   /** Clear the repository.
    */
   public static void clearCache() {
-    _repository.clear();
+  	getRepository().clear();
   }
 
   /**
@@ -134,8 +136,8 @@ public abstract class Repository {
    * @return old entry in repository
    */
   public static JavaClass addClass(JavaClass clazz) {
-    JavaClass old = _repository.findClass(clazz.getClassName());
-    _repository.storeClass(clazz);
+    JavaClass old = getRepository().findClass(clazz.getClassName());
+    getRepository().storeClass(clazz);
     return old;
   }
 
@@ -143,14 +145,14 @@ public abstract class Repository {
    * Remove class with given (fully qualified) name from repository.
    */
   public static void removeClass(String clazz) {
-    _repository.removeClass(_repository.findClass(clazz));
+  	getRepository().removeClass(getRepository().findClass(clazz));
   }
 
   /**
    * Remove given class from repository.
    */
   public static void removeClass(JavaClass clazz) {
-    _repository.removeClass(clazz);
+  	getRepository().removeClass(clazz);
   }
 
   /**

bcel-builder/src/org/aspectj/apache/bcel/classfile/JavaClass.java

@@ -73,7 +73,7 @@ import  java.util.StringTokenizer;
  * class file.  Those interested in programatically generating classes
  * should see the <a href="../generic/ClassGen.html">ClassGen</a> class.
 
- * @version $Id: JavaClass.java,v 1.1 2004/11/18 14:48:11 aclement Exp $
+ * @version $Id: JavaClass.java,v 1.2 2004/11/18 16:00:19 aclement Exp $
  * @see org.aspectj.apache.bcel.generic.ClassGen
  * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  */
@@ -106,8 +106,7 @@ public class JavaClass extends AccessFlags implements Cloneable, Node {
    * use the default SyntheticRepository, because we
    * don't know any better.
    */
-  private transient org.aspectj.apache.bcel.util.Repository repository = 
-    SyntheticRepository.getInstance();
+  private transient org.aspectj.apache.bcel.util.Repository repository = null;
 
   /**
    * Constructor gets all contents as arguments.
@@ -672,6 +671,7 @@ public class JavaClass extends AccessFlags implements Cloneable, Node {
    * this is the same as SyntheticRepository.getInstance();
    */
   public org.aspectj.apache.bcel.util.Repository getRepository() {
+  	if (repository == null) repository = SyntheticRepository.getInstance();
     return repository;
   }
 
@@ -739,7 +739,7 @@ public class JavaClass extends AccessFlags implements Cloneable, Node {
     }
 
     try {
-      return repository.loadClass(getSuperclassName());
+      return getRepository().loadClass(getSuperclassName());
     } catch(ClassNotFoundException e) {
       System.err.println(e);
       return null;
@@ -772,7 +772,7 @@ public class JavaClass extends AccessFlags implements Cloneable, Node {
 
     try {
       for(int i = 0; i < interfaces.length; i++) {
-	classes[i] = repository.loadClass(interfaces[i]);
+	classes[i] = getRepository().loadClass(interfaces[i]);
       }
     } catch(ClassNotFoundException e) {
       System.err.println(e);

bcel-builder/src/org/aspectj/apache/bcel/util/ClassPath.java

@@ -62,12 +62,20 @@ import java.io.*;
  * Responsible for loading (class) files from the CLASSPATH. Inspired by
  * sun.tools.ClassPath.
  *
- * @version $Id: ClassPath.java,v 1.1 2004/11/18 14:48:12 aclement Exp $
+ * @version $Id: ClassPath.java,v 1.2 2004/11/18 16:00:19 aclement Exp $
  * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  */
 public class ClassPath implements Serializable {
-  public static final ClassPath SYSTEM_CLASS_PATH = new ClassPath();
+  private static ClassPath SYSTEM_CLASS_PATH;
 
+  
+  public static ClassPath getSystemClassPath() {
+  	if (SYSTEM_CLASS_PATH==null) {
+  		SYSTEM_CLASS_PATH = new ClassPath();
+  	}
+  	return SYSTEM_CLASS_PATH;
+  }
+  
   private PathEntry[] paths;
   private String      class_path;
 

bcel-builder/src/org/aspectj/apache/bcel/util/SyntheticRepository.java

@@ -78,7 +78,7 @@ import org.aspectj.apache.bcel.classfile.JavaClass;
  *
  * @see org.aspectj.apache.bcel.Repository
  *
- * @version $Id: SyntheticRepository.java,v 1.2 2004/11/18 15:07:05 aclement Exp $
+ * @version $Id: SyntheticRepository.java,v 1.3 2004/11/18 16:00:19 aclement Exp $
  * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  * @author David Dixon-Peugh
  */
@@ -95,7 +95,7 @@ public class SyntheticRepository implements Repository {
   }
 
   public static SyntheticRepository getInstance() {
-    return getInstance(ClassPath.SYSTEM_CLASS_PATH);
+    return getInstance(ClassPath.getSystemClassPath());
   }
 
   public static SyntheticRepository getInstance(ClassPath classPath) {

bcel-builder/src/org/aspectj/apache/bcel/verifier/VerifierFactory.java

@@ -64,7 +64,7 @@ import java.util.Vector;
  * operate on. That means, for every class (represented by a unique fully qualified
  * class name) there is exactly one Verifier.
  *
- * @version $Id: VerifierFactory.java,v 1.1 2004/11/18 14:48:12 aclement Exp $
+ * @version $Id: VerifierFactory.java,v 1.2 2004/11/18 16:00:19 aclement Exp $
  * @author <A HREF="http://www.inf.fu-berlin.de/~ehaase"/>Enver Haase</A>
  * @see org.aspectj.apache.bcel.verifier.Verifier
  */
@@ -91,7 +91,7 @@ public class VerifierFactory{
 	 * @return the (only) verifier responsible for the class with the given name.
 	 */
 	public static Verifier getVerifier(String fully_qualified_classname){
-		fully_qualified_classname = fully_qualified_classname;
+		//fully_qualified_classname = fully_qualified_classname;
 		
 		Verifier v = (Verifier) (hashMap.get(fully_qualified_classname));
 		if (v==null){