diff --git a/htroot/Banner.java b/htroot/Banner.java
index 9fad6e8d3..15281c827 100644
--- a/htroot/Banner.java
+++ b/htroot/Banner.java
@@ -34,7 +34,6 @@ import javax.imageio.ImageIO;
 import net.yacy.cora.protocol.RequestHeader;
 import net.yacy.peers.Seed;
 import net.yacy.peers.graphics.BannerData;
-import net.yacy.peers.graphics.NetworkGraph;
 import net.yacy.search.Switchboard;
 import net.yacy.search.SwitchboardConstants;
 import net.yacy.visualization.RasterPlotter;
diff --git a/source/net/yacy/kelondro/table/Table.java b/source/net/yacy/kelondro/table/Table.java
index 366f387d4..3e0e94999 100644
--- a/source/net/yacy/kelondro/table/Table.java
+++ b/source/net/yacy/kelondro/table/Table.java
@@ -690,7 +690,11 @@ public class Table implements Index, Iterable<Row.Entry> {
                     }
                     this.file.put(i, p, 0);
                     byte[] pk = lr.getPrimaryKeyBytes();
-                    if (pk == null) continue;
+                    if (pk == null) {
+                        // Table file might be corrupt
+                        Log.logWarning("TABLE", "Possible corruption found in table " + this.filename() + " detected. i=" + i + ",p=" + p);
+                        continue;
+                    }
                     this.index.put(pk, i);
                     break;
                 }
diff --git a/source/net/yacy/search/index/SolrConfiguration.java b/source/net/yacy/search/index/SolrConfiguration.java
index 563684aaa..8089cf7a0 100644
--- a/source/net/yacy/search/index/SolrConfiguration.java
+++ b/source/net/yacy/search/index/SolrConfiguration.java
@@ -466,7 +466,7 @@ public class SolrConfiguration extends ConfigurationSet implements Serializable
      * @param rel
      * @return binary encoded information about rel
      */
-    private int relEval(final String[] rel) {
+    private static int relEval(final String[] rel) {
         int i = 0;
         for (final String s: rel) {
             final String s0 = s.toLowerCase().trim();