update camel to 3.14 + stop trusting all ssl connections

pom.xml

@@ -51,6 +51,10 @@
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-spring</artifactId>
  </dependency>
+ <dependency>
+ <groupId>org.apache.camel</groupId>
+ <artifactId>camel-spring-xml</artifactId>
+ </dependency>
  <dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-core</artifactId>
@@ -96,20 +100,6 @@
  <artifactId>Saxon-HE</artifactId>
  <version>9.8.0-14</version>
  </dependency>
- <!-- Explicitly add JAXB dependencies. Needed for newer Java versions.
- See also https://stackoverflow.com/questions/43574426/how-to-resolve-java-lang-noclassdeffounderror-javax-xml-bind-jaxbexception-in-j
- -->
- <!-- JAXB version corresponding to version used in Apache Camel -->
- <dependency>
- <groupId>javax.xml.bind</groupId>
- <artifactId>jaxb-api</artifactId>
- <version>${jaxb.version}</version>
- </dependency>
- <dependency>
- <groupId>javax.activation</groupId>
- <artifactId>activation</artifactId>
- <version>1.1.1</version>
- </dependency>
  </dependencies>
  <build>
  <resources>
@@ -126,18 +116,17 @@
  <plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-compiler-plugin</artifactId>
- <version>2.3.2</version>
+ <version>3.8.0</version>
  <configuration>
- <source>1.8</source>
- <target>1.8</target>
+ <release>11</release>
  </configuration>
  </plugin>
  <plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-javadoc-plugin</artifactId>
  <version>2.10.1</version>
  <configuration>
- <source>1.8</source>
+ <source>1.11</source>
  <minmemory>256m</minmemory>
  <maxmemory>512m</maxmemory>
  </configuration>
@@ -187,7 +176,7 @@
  <plugin>
  <artifactId>maven-war-plugin</artifactId>
  <inherited>true</inherited>
- <version>2.2</version>
+ <version>3.2.3</version>
  <executions>
  <execution>
  <phase>package</phase>
@@ -223,11 +212,10 @@
  </pluginManagement>
  </build>
  <properties>
- <camel.version>2.24.3</camel.version>
- <jaxb.version>2.3.0</jaxb.version>
- <spring.version>5.1.19.RELEASE</spring.version>
- <spring-boot.version>2.1.18.RELEASE</spring-boot.version>
- <spring-framework.version>${spring.version}</spring-framework.version>
+ <camel.version>3.14.0</camel.version>
+ <spring-boot.version>2.6.1</spring-boot.version>
+
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
  <oai-pmh.base.url.external>http:https://localhost:8080/omdf</oai-pmh.base.url.external>
  <oai-pmh.db.item.csw.TYPE>inspire</oai-pmh.db.item.csw.TYPE>

src/main/java/eu/odp/harvest/geo/oai/xslt/HttpAwareUriResolver.java

@@ -4,17 +4,18 @@
 import org.apache.camel.Exchange;
 import org.apache.camel.ExchangePattern;
 import org.apache.camel.ProducerTemplate;
-import org.apache.camel.builder.xml.XsltUriResolver;
-import org.apache.camel.impl.DefaultExchange;
-import org.apache.commons.httpclient.HttpClient;
-import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
-import org.apache.commons.httpclient.methods.GetMethod;
+import org.apache.camel.component.xslt.XsltUriResolver;
+import org.apache.camel.support.DefaultExchange;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.log4j.Logger;
 
 import javax.xml.transform.Source;
 import javax.xml.transform.TransformerException;
 import javax.xml.transform.stream.StreamSource;
-import java.io.ByteArrayInputStream;
 
 /**
  * Resolves a document reference for protocols "http" or "https" in an XSL document with HTTP client.
@@ -25,7 +26,8 @@ public class HttpAwareUriResolver extends XsltUriResolver {
 
  private final static Logger LOG = Logger.getLogger(HttpAwareUriResolver.class);
 
- private static HttpClient httpClient = new HttpClient(new MultiThreadedHttpConnectionManager());
+ private static HttpClient httpClient = HttpClients.custom()
+ .setConnectionManager(new PoolingHttpClientConnectionManager()).build();
  private ProducerTemplate template;
  private CamelContext context;
 
@@ -71,18 +73,11 @@ private Source resolveRoute(String href) {
  String[] parts = href.split("\\?");
  exchange.getIn().setHeader("resourceIdentifiers", parts[1]);
  template.send(parts[0], exchange);
- return new StreamSource(exchange.getOut().getBody(java.io.InputStream.class));
+ return new StreamSource(exchange.getMessage().getBody(java.io.InputStream.class));
  }
 
  private Source resolveHttp(String href) throws Exception {
- GetMethod method = new GetMethod(href);
- try {
- httpClient.executeMethod(method);
- byte[] bytes = method.getResponseBody();
- return new StreamSource(new ByteArrayInputStream(bytes));
- }
- finally {
- method.releaseConnection();
- }
+ HttpResponse response = httpClient.execute(new HttpGet(href));
+ return new StreamSource(response.getEntity().getContent());
  }
 }