avoid exception during creation of identifier list

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
index 277a54f..1a38bc6 100644 (file)
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/builder/IdentifierIndexManager.java
@@ -32,7 +32,7 @@ import org.eclipse.core.runtime.IStatus;
 
 /**
  * Manages the identifer index information for a specific project
- *  
+ *
  */
 public class IdentifierIndexManager {
   public class LineCreator implements ITerminalSymbols {
@@ -46,7 +46,7 @@ public class IdentifierIndexManager {
 
     /**
      * Add the information of the current identifier to the line
-     * 
+     *
      * @param typeOfIdentifier
      *          the type of the identifier ('c'lass, 'd'efine, 'f'unction, 'm'ethod(class), 'v'ariable(class) 'g'lobal variable)
      * @param identifier
@@ -64,7 +64,7 @@ public class IdentifierIndexManager {
 
     /**
      * Add the information of the current identifier to the line
-     * 
+     *
      * @param typeOfIdentifier
      *          the type of the identifier ('c'lass, 'd'efine, 'f'unction, 'm'ethod(class), 'v'ariable(class) 'g'lobal variable)
      * @param identifier
@@ -415,7 +415,7 @@ public class IdentifierIndexManager {
 
   /**
    * Check if 2 char arrays are equal
-   * 
+   *
    * @param a
    * @param b
    * @return
@@ -438,7 +438,7 @@ public class IdentifierIndexManager {
 
   /**
    * Add the information for a given IFile resource
-   *  
+   *
    */
   public void addFile(IFile fileToParse) {
     //    InputStream iStream;
@@ -481,7 +481,7 @@ public class IdentifierIndexManager {
 
   /**
    * Adds a line of the index file for function, class, class-method and class-variable names
-   * 
+   *
    * @param line
    */
   private void addLine(String line) {
@@ -551,7 +551,7 @@ public class IdentifierIndexManager {
 
   /**
    * Adds a line of the index file for function, class, class-method and class-variable names
-   * 
+   *
    * @param line
    */
   public void addLine(TreeMap treeMap, HashMap fileMap, String line, List allClassNames) {
@@ -702,7 +702,7 @@ public class IdentifierIndexManager {
 
   /**
    * Change the information for a given IFile resource
-   *  
+   *
    */
   public void changeFile(IFile fileToParse) {
     removeFile(fileToParse);
@@ -711,17 +711,21 @@ public class IdentifierIndexManager {
 
   /**
    * Get a list of all PHPIdentifierLocation object's associated with an identifier
-   * 
+   *
    * @param identifier
    * @return
    */
   public List getLocations(String identifier) {
-    return (List) fIndentifierMap.get(identifier);
+         List list=(List) fIndentifierMap.get(identifier);
+         if (list!=null) {
+                 return list;
+         }
+         return new ArrayList();
   }
 
   /**
    * Initialize (i.e. clear) the current index information
-   *  
+   *
    */
   public void initialize() {
     fIndentifierMap = new TreeMap(new StringComparator());
@@ -752,7 +756,7 @@ public class IdentifierIndexManager {
 
   /**
    * Remove the information for a given IFile resource
-   *  
+   *
    */
   public void removeFile(IFile fileToParse) {
     //    String line = (String)
@@ -765,7 +769,7 @@ public class IdentifierIndexManager {
 
   /**
    * Removes a line of the index file for function, class, class-method and class-variable names
-   * 
+   *
    * @param line
    */
   private void removeLine(String line) {
@@ -875,7 +879,7 @@ public class IdentifierIndexManager {
 
   /**
    * Save the current index information in the projects index file
-   *  
+   *
    */
   public void writeFile() {
     FileWriter fileWriter;