diff --git a/build.nsi b/build.nsi
index 980997cb1..25683c32f 100644
--- a/build.nsi
+++ b/build.nsi
@@ -60,14 +60,14 @@ SetCompressor /SOLID LZMA
 ; http://www.java.com/de/download/manual.jsp BundleId +1 / +2
 ; User-Agent to see the 64bit link: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Win64; x64; Trident/4.0)
 
-; at least we need Java 6
-!define JRE_VERSION6 "1.6"
+; at least we need Java 7
+!define JRE_VERSION7 "1.7"
 
-; download link Oracle Java 7 Update 25
-; 32 bit / jre-7u25-windows-i586.exe
-!define JRE_32 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=79063"
-; 64 bit / jre-7u25-windows-x64.exe
-!define JRE_64 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=79065"
+; download link Oracle Java 7 Update 55
+; 32 bit / jre-7u55-windows-i586.exe
+!define JRE_32 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=86895"
+; 64 bit / jre-7u55-windows-x64.exe
+!define JRE_64 "http://javadl.sun.com/webapps/download/AutoDL?BundleId=87443"
 
 ;!define JRE_32 "http://yacy.berlios.de/download.php?what=jre&version=32&yacyrevnr=@REPL_REVISION_NR@"
 ;!define JRE_64 "http://yacy.berlios.de/download.php?what=jre&version=64&yacyrevnr=@REPL_REVISION_NR@"
@@ -269,7 +269,7 @@ Function .onInit
 	${EndIf}
 	ReadRegStr $InstalledJREVersion HKLM "SOFTWARE\JavaSoft\Java Runtime Environment" "CurrentVersion"
 	; if right JRE already installed hide and deselect JRE section
-	${If} $InstalledJREVersion = ${JRE_VERSION6}
+	${If} $InstalledJREVersion = ${JRE_VERSION7}
 		SectionSetText ${Sec_Java_id} ""
 		SectionSetFlags ${Sec_Java_id} 0
 	${EndIf}
diff --git a/nbproject/project.xml b/nbproject/project.xml
index d73180213..f56467499 100644
--- a/nbproject/project.xml
+++ b/nbproject/project.xml
@@ -10,6 +10,11 @@
             <name>YaCy</name>
             <properties/>
             <folders>
+                <source-folder>
+                    <label>YaCy</label>
+                    <location>.</location>
+                    <encoding>UTF-8</encoding>
+                </source-folder>
                 <source-folder>
                     <label>source</label>
                     <type>java</type>
@@ -77,13 +82,8 @@
         <java-data xmlns="http://www.netbeans.org/ns/freeform-project-java/3">
             <compilation-unit>
                 <package-root>source</package-root>
-                <classpath mode="compile">lib/J7Zip-modified.jar;lib/activation.jar;lib/apache-mime4j-0.6.jar;lib/bcmail-jdk15-145.jar;lib/bcprov-jdk15-145.jar;lib/commons-codec-1.7.jar;lib/commons-compress-1.8.jar;lib/commons-fileupload-1.2.2.jar;lib/commons-io-2.1.jar;lib/commons-jxpath-1.3.jar;lib/commons-lang-2.6.jar;lib/commons-logging-1.1.3.jar;lib/fontbox-1.8.4.jar;lib/geronimo-stax-api_1.0_spec-1.0.1.jar;lib/guava-16.0.1.jar;lib/htmllexer.jar;lib/httpclient-4.3.3.jar;lib/httpcore-4.3.2.jar;lib/httpmime-4.3.3.jar;lib/icu4j-core.jar;lib/jakarta-oro-2.0.8.jar;lib/jaudiotagger-2.0.4-20111207.115108-15.jar;lib/javax.servlet-api-3.1.0.jar;lib/jcifs-1.3.17.jar;lib/jcl-over-slf4j-1.7.2.jar;lib/jempbox-1.8.4.jar;lib/jetty-client-9.1.4.v20140401.jar;lib/jetty-continuation-9.1.4.v20140401.jar;lib/jetty-deploy-9.1.4.v20140401.jar;lib/jetty-http-9.1.4.v20140401.jar;lib/jetty-io-9.1.4.v20140401.jar;lib/jetty-jmx-9.1.4.v20140401.jar;lib/jetty-proxy-9.1.4.v20140401.jar;lib/jetty-security-9.1.4.v20140401.jar;lib/jetty-server-9.1.4.v20140401.jar;lib/jetty-servlet-9.1.4.v20140401.jar;lib/jetty-servlets-9.1.4.v20140401.jar;lib/jetty-util-9.1.4.v20140401.jar;lib/jetty-webapp-9.1.4.v20140401.jar;lib/jetty-xml-9.1.4.v20140401.jar;lib/jsch-0.1.50.jar;lib/json-simple-1.1.1.jar;lib/jsoup-1.6.3.jar;lib/log4j-over-slf4j-1.7.2.jar;lib/lucene-analyzers-common-4.7.1.jar;lib/lucene-analyzers-phonetic-4.7.1.jar;lib/lucene-classification-4.7.1.jar;lib/lucene-codecs-4.7.1.jar;lib/lucene-core-4.7.1.jar;lib/lucene-facet-4.7.1.jar;lib/lucene-grouping-4.7.1.jar;lib/lucene-highlighter-4.7.1.jar;lib/lucene-join-4.7.1.jar;lib/lucene-memory-4.7.1.jar;lib/lucene-misc-4.7.1.jar;lib/lucene-queries-4.7.1.jar;lib/lucene-queryparser-4.7.1.jar;lib/lucene-spatial-4.7.1.jar;lib/lucene-suggest-4.7.1.jar;lib/metadata-extractor-2.6.2.jar;lib/noggit-0.5.jar;lib/pdfbox-1.8.4.jar;lib/poi-3.9-20121203.jar;lib/poi-scratchpad-3.9-20121203.jar;lib/servlet-api-3.0.jar;lib/slf4j-api-1.7.2.jar;lib/slf4j-jdk14-1.7.2.jar;lib/solr-core-4.7.1.jar;lib/solr-solrj-4.7.1.jar;lib/spatial4j-0.4.1.jar;lib/webcat-0.1-swf.jar;lib/wstx-asl-3.2.9.jar;lib/xercesImpl.jar;lib/xml-apis.jar;lib/zookeeper-3.4.5.jar</classpath>
-                <built-to>lib/yacycore.jar</built-to>
-                <source-level>1.7</source-level>
-            </compilation-unit>
-            <compilation-unit>
                 <package-root>htroot</package-root>
-                <classpath mode="compile">lib/J7Zip-modified.jar;lib/activation.jar;lib/apache-mime4j-0.6.jar;lib/arq-2.8.7.jar;lib/bcmail-jdk15-145.jar;lib/bcprov-jdk15-145.jar;lib/commons-codec-1.7.jar;lib/commons-compress-1.8.jar;lib/commons-fileupload-1.2.2.jar;lib/commons-io-2.1.jar;lib/commons-jxpath-1.3.jar;lib/commons-lang-2.6.jar;lib/commons-logging-1.1.3.jar;lib/fontbox-1.8.4.jar;lib/geronimo-stax-api_1.0_spec-1.0.1.jar;lib/guava-16.0.1.jar;lib/htmllexer.jar;lib/httpclient-4.3.3.jar;lib/httpcore-4.3.2.jar;lib/httpmime-4.3.3.jar;lib/icu4j-core.jar;lib/iri-0.8.jar;lib/jakarta-oro-2.0.8.jar;lib/jaudiotagger-2.0.4-20111207.115108-15.jar;lib/jcifs-1.3.17.jar;lib/jcl-over-slf4j-1.7.2.jar;lib/jempbox-1.8.4.jar;lib/jetty-client-8.1.14.v20131031.jar;lib/jetty-continuation-8.1.14.v20131031.jar;lib/jetty-http-8.1.14.v20131031.jar;lib/jetty-io-8.1.14.v20131031.jar;lib/jetty-security-8.1.14.v20131031.jar;lib/jetty-server-8.1.14.v20131031.jar;lib/jetty-servlet-8.1.14.v20131031.jar;lib/jetty-servlets-8.1.14.v20131031.jar;lib/jetty-util-8.1.14.v20131031.jar;lib/jetty-webapp-8.1.14.v20131031.jar;lib/jetty-xml-8.1.14.v20131031.jar;lib/jsch-0.1.50.jar;lib/json-simple-1.1.1.jar;lib/jsoup-1.6.3.jar;lib/log4j-over-slf4j-1.7.2.jar;lib/lucene-analyzers-common-4.7.1.jar;lib/lucene-analyzers-phonetic-4.7.1.jar;lib/lucene-classification-4.7.1.jar;lib/lucene-codecs-4.7.1.jar;lib/lucene-core-4.7.1.jar;lib/lucene-facet-4.7.1.jar;lib/lucene-grouping-4.7.1.jar;lib/lucene-highlighter-4.7.1.jar;lib/lucene-join-4.7.1.jar;lib/lucene-memory-4.7.1.jar;lib/lucene-misc-4.7.1.jar;lib/lucene-queries-4.7.1.jar;lib/lucene-queryparser-4.7.1.jar;lib/lucene-spatial-4.7.1.jar;lib/lucene-suggest-4.7.1.jar;lib/metadata-extractor-2.6.2.jar;lib/noggit-0.5.jar;lib/pdfbox-1.8.4.jar;lib/poi-3.9-20121203.jar;lib/poi-scratchpad-3.9-20121203.jar;lib/sax-2.0.1.jar;lib/servlet-api-3.0.jar;lib/slf4j-api-1.7.2.jar;lib/slf4j-jdk14-1.7.2.jar;lib/solr-core-4.7.1.jar;lib/solr-solrj-4.7.1.jar;lib/spatial4j-0.3.jar;lib/webcat-0.1-swf.jar;lib/wstx-asl-3.2.9.jar;lib/xercesImpl.jar;lib/xml-apis.jar;lib/zookeeper-3.4.5.jar;lib/yacycore.jar</classpath>
+                <classpath mode="compile">lib/J7Zip-modified.jar;lib/apache-mime4j-0.6.jar;lib/bcmail-jdk15-1.46.jar;lib/bcprov-jdk15-1.46.jar;lib/commons-codec-1.7.jar;lib/commons-compress-1.8.jar;lib/commons-fileupload-1.2.2.jar;lib/commons-io-2.1.jar;lib/commons-jxpath-1.3.jar;lib/commons-lang-2.6.jar;lib/commons-logging-1.1.3.jar;lib/fontbox-1.8.5.jar;lib/geronimo-stax-api_1.0_spec-1.0.1.jar;lib/guava-16.0.1.jar;lib/htmllexer.jar;lib/httpclient-4.3.3.jar;lib/httpcore-4.3.2.jar;lib/httpmime-4.3.3.jar;lib/icu4j-core.jar;lib/jakarta-oro-2.0.8.jar;lib/jaudiotagger-2.0.4-20111207.115108-15.jar;lib/javax.servlet-api-3.1.0.jar;lib/jcifs-1.3.17.jar;lib/jcl-over-slf4j-1.7.2.jar;lib/jempbox-1.8.5.jar;lib/jetty-client-9.1.4.v20140401.jar;lib/jetty-continuation-9.1.4.v20140401.jar;lib/jetty-deploy-9.1.4.v20140401.jar;lib/jetty-http-9.1.4.v20140401.jar;lib/jetty-io-9.1.4.v20140401.jar;lib/jetty-jmx-9.1.4.v20140401.jar;lib/jetty-proxy-9.1.4.v20140401.jar;lib/jetty-security-9.1.4.v20140401.jar;lib/jetty-server-9.1.4.v20140401.jar;lib/jetty-servlet-9.1.4.v20140401.jar;lib/jetty-servlets-9.1.4.v20140401.jar;lib/jetty-util-9.1.4.v20140401.jar;lib/jetty-webapp-9.1.4.v20140401.jar;lib/jetty-xml-9.1.4.v20140401.jar;lib/jsch-0.1.50.jar;lib/json-simple-1.1.1.jar;lib/jsoup-1.6.3.jar;lib/log4j-over-slf4j-1.7.2.jar;lib/lucene-analyzers-common-4.8.1.jar;lib/lucene-analyzers-phonetic-4.8.1.jar;lib/lucene-classification-4.8.1.jar;lib/lucene-codecs-4.8.1.jar;lib/lucene-core-4.8.1.jar;lib/lucene-facet-4.8.1.jar;lib/lucene-grouping-4.8.1.jar;lib/lucene-highlighter-4.8.1.jar;lib/lucene-join-4.8.1.jar;lib/lucene-memory-4.8.1.jar;lib/lucene-misc-4.8.1.jar;lib/lucene-queries-4.8.1.jar;lib/lucene-queryparser-4.8.1.jar;lib/lucene-spatial-4.8.1.jar;lib/lucene-suggest-4.8.1.jar;lib/metadata-extractor-2.6.2.jar;lib/noggit-0.5.jar;lib/org.restlet.jar;lib/pdfbox-1.8.5.jar;lib/poi-3.10-FINAL-20140208.jar;lib/poi-scratchpad-3.10-FINAL-20140208.jar;lib/slf4j-api-1.7.2.jar;lib/slf4j-jdk14-1.7.2.jar;lib/solr-core-4.8.1.jar;lib/solr-solrj-4.8.1.jar;lib/spatial4j-0.4.1.jar;lib/webcat-0.1-swf.jar;lib/wstx-asl-3.2.9.jar;lib/xercesImpl.jar;lib/xml-apis.jar;lib/zookeeper-3.4.6.jar</classpath>
                 <built-to>lib/yacycore.jar</built-to>
                 <source-level>1.7</source-level>
             </compilation-unit>
diff --git a/pom.xml b/pom.xml
index 6134d2429..936e034b3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,7 +34,7 @@
         <maven.compiler.source>1.7</maven.compiler.source>
         <maven.compiler.target>1.7</maven.compiler.target>
         <!-- the Solr version used in dependency section for all related dependencies -->
-        <solr.version>4.8.0</solr.version> 
+        <solr.version>4.8.1</solr.version> 
         
         <!-- properties used for filtering yacyBuildProperties.java -->       
         <REPL_DATE>${DSTAMP}</REPL_DATE>
@@ -325,7 +325,7 @@
         <dependency>
             <groupId>org.apache.pdfbox</groupId>
             <artifactId>fontbox</artifactId>
-            <version>1.8.4</version>
+            <version>1.8.5</version>
         </dependency>
         <dependency>
             <groupId>org.apache.geronimo.specs</groupId>
@@ -470,17 +470,17 @@
         <dependency>
             <groupId>org.apache.pdfbox</groupId>
             <artifactId>pdfbox</artifactId>
-            <version>1.8.4</version>
+            <version>1.8.5</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.9</version>
+            <version>3.10-FINAL</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi-scratchpad</artifactId>
-            <version>3.9</version>
+            <version>3.10-FINAL</version>
         </dependency>
         <dependency>
             <groupId>sax</groupId>