Index: modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/BaseUIMATokenizer.java
===================================================================
--- modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/BaseUIMATokenizer.java	(revision 1244546)
+++ modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/BaseUIMATokenizer.java	(working copy)
@@ -44,19 +44,20 @@
    * analyzes the tokenizer input using the given analysis engine
    *
    * @param analysisEngine the AE to use for analyzing the tokenizer input
-   * @return CAS with extracted metadata (UIMA annotations, feature structures)
+   * @param CAS to fill with extracted metadata (UIMA annotations, feature structures)
    * @throws ResourceInitializationException
    *
    * @throws AnalysisEngineProcessException
    * @throws IOException
    */
-  protected CAS analyzeInput(AnalysisEngine analysisEngine) throws ResourceInitializationException,
+  protected void analyzeInput(AnalysisEngine analysisEngine, CAS cas) throws ResourceInitializationException,
       AnalysisEngineProcessException, IOException {
-    CAS cas = analysisEngine.newCAS();
+    cas.reset();
     cas.setDocumentText(toString(input));
-    analysisEngine.process(cas);
-    analysisEngine.destroy();
-    return cas;
+    // nocommit: how can we get our 'own' analysis engine from the factory?
+    synchronized(analysisEngine) {
+      analysisEngine.process(cas);
+    }
   }
 
   private String toString(Reader reader) throws IOException {
Index: modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMAAnnotationsTokenizer.java
===================================================================
--- modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMAAnnotationsTokenizer.java	(revision 1244546)
+++ modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMAAnnotationsTokenizer.java	(working copy)
@@ -44,6 +44,9 @@
   private final String tokenTypeString;
 
   private final String descriptorPath;
+  
+  private final AnalysisEngine ae; // nocommit: make superclasses of BaseUIMATokenizer set this?
+  private final CAS cas; // nocommit: make superclasses of BaseUIMATOkenizer set this?
 
   private int finalOffset = 0;
 
@@ -53,12 +56,17 @@
     this.termAttr = addAttribute(CharTermAttribute.class);
     this.offsetAttr = addAttribute(OffsetAttribute.class);
     this.descriptorPath = descriptorPath;
+    try {
+      ae = AEProviderFactory.getInstance().getAEProvider("", descriptorPath).getAE();
+      cas = ae.newCAS();
+    } catch (ResourceInitializationException e) {
+      throw new RuntimeException(e);
+    }
   }
 
   private void analyzeText(String descriptorPath) throws IOException, ResourceInitializationException,
       AnalysisEngineProcessException {
-    AnalysisEngine ae = AEProviderFactory.getInstance().getAEProvider("", descriptorPath).getAE();
-    CAS cas = analyzeInput(ae);
+    analyzeInput(ae, cas);
     finalOffset = correctOffset(cas.getDocumentText().length());
     Type tokenType = cas.getTypeSystem().getType(tokenTypeString);
     iterator = cas.getAnnotationIndex(tokenType).iterator();
Index: modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMATypeAwareAnnotationsTokenizer.java
===================================================================
--- modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMATypeAwareAnnotationsTokenizer.java	(revision 1244546)
+++ modules/analysis/uima/src/java/org/apache/lucene/analysis/uima/UIMATypeAwareAnnotationsTokenizer.java	(working copy)
@@ -54,6 +54,9 @@
   private final String typeAttributeFeaturePath;
 
   private FeaturePath featurePath;
+  
+  private final AnalysisEngine ae; // nocommit: make superclasses of BaseUIMATokenizer set this?
+  private final CAS cas; // nocommit: make superclasses of BaseUIMATOkenizer set this?
 
   private int finalOffset = 0;
 
@@ -65,12 +68,17 @@
     this.offsetAttr = addAttribute(OffsetAttribute.class);
     this.typeAttributeFeaturePath = typeAttributeFeaturePath;
     this.descriptorPath = descriptorPath;
+    try {
+      ae = AEProviderFactory.getInstance().getAEProvider("", descriptorPath).getAE();
+      cas = ae.newCAS();
+    } catch (ResourceInitializationException e) {
+      throw new RuntimeException(e);
+    }
   }
 
   private void analyzeText() throws IOException, ResourceInitializationException, AnalysisEngineProcessException,
       CASException {
-    AnalysisEngine ae = AEProviderFactory.getInstance().getAEProvider("", descriptorPath).getAE();
-    CAS cas = analyzeInput(ae);
+    analyzeInput(ae, cas);
     finalOffset = correctOffset(cas.getDocumentText().length());
     Type tokenType = cas.getTypeSystem().getType(tokenTypeString);
     iterator = cas.getAnnotationIndex(tokenType).iterator();