some fixes recommended by findbugs

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5618 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/http/httpdFileHandler.java

@@ -77,7 +77,6 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Properties;
-import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.zip.GZIPOutputStream;
 
@@ -608,9 +607,8 @@ public final class httpdFileHandler {
                 }
 
                 // add values from request header to environment (see: http://hoohoo.ncsa.uiuc.edu/cgi/env.html#headers)
-                Set<String> requestHeaderKeys = requestHeader.keySet();
-                for (String requestHeaderKey : requestHeaderKeys) {
-                    env.put("HTTP_" + requestHeaderKey.toUpperCase().replace("-", "_"), requestHeader.get(requestHeaderKey));
+                for (Map.Entry<String, String> requestHeaderEntry : requestHeader.entrySet()) {
+                    env.put("HTTP_" + requestHeaderEntry.getKey().toUpperCase().replace("-", "_"), requestHeaderEntry.getValue());
                 }
 
                 int exitValue = 0;

source/de/anomic/kelondro/index/BytesLongMap.java

@@ -81,6 +81,7 @@ public class BytesLongMap {
             if (c <= 0) break;
             this.index.addUnique(this.rowdef.newEntry(a));
         }
+        is.close();
         assert this.index.size() == file.length() / (keylength + 8);
     }
 

source/de/anomic/kelondro/index/RAMIndex.java

@@ -49,7 +49,7 @@ public class RAMIndex implements ObjectIndex {
 		reset(0);
 	}
     
-	public void reset(final int initialspace) {
+	public synchronized void reset(final int initialspace) {
 	    this.index0 = null; // first flush RAM to make room
 		this.index0 = new RowSet(rowdef, initialspace);
         this.index1 = null; // to show that this is the initialization phase
@@ -77,7 +77,7 @@ public class RAMIndex implements ObjectIndex {
         return index1.get(key);
     }
 
-	public boolean has(final byte[] key) {
+	public synchronized boolean has(final byte[] key) {
 		assert (key != null);
         finishInitialization();
         assert index0.isSorted();

source/de/anomic/kelondro/util/FileUtils.java

@@ -255,7 +255,13 @@ public final class FileUtils {
     public static byte[] read(final InputStream source, final int count) throws IOException {
         if (count > 0) {
             byte[] b = new byte[count];
-            source.read(b, 0, count);
+            int c = source.read(b, 0, count);
+            assert c == count: "count = " + count + ", c = " + c;
+            if (c != count) {
+            	byte[] bb = new byte[c];
+            	System.arraycopy(b, 0, bb, 0, c);
+            	return bb;
+            }
             return b;
         } else {
             final ByteArrayOutputStream baos = new ByteArrayOutputStream(512);

source/de/anomic/kelondro/util/ScoreCluster.java

@@ -44,7 +44,7 @@ public final class ScoreCluster<E> {
         encnt = 0;
     }
     
-    public void clear() {
+    public synchronized void clear() {
         refkeyDB.clear();
         keyrefDB.clear();
         gcount = 0;