OpenShift-Klasse String-Fehler

Question

Ich kann mein Spring-Mvc-Projekt nicht in OpenShift installieren. Wenn ich drücke, erhalte ich einen Fehler remote: [ERROR] /var/lib/openshift/575b0b2b2d52719638000001/app-root/runtime/repo/src/main/java/com/controller/ReservationController.java:[73,66] error: cannot find symbo remote: [ERROR] class String

Meine pom.xml. Ich habe Maven Compiler Quelle und Ziel geändert.

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 
<modelVersion>4.0.0</modelVersion> 
<groupId>happy</groupId> 
<artifactId>happy</artifactId> 
<packaging>war</packaging> 
<version>1.0</version> 
<name>happy</name> 
<repositories> 
    <repository> 
     <id>eap</id> 
     <url>http://maven.repository.redhat.com/techpreview/all</url> 
     <releases> 
      <enabled>true</enabled> 
     </releases> 
     <snapshots> 
      <enabled>true</enabled> 
     </snapshots> 
    </repository> 
</repositories> 
<pluginRepositories> 
    <pluginRepository> 
     <id>eap</id> 
     <url>http://maven.repository.redhat.com/techpreview/all</url> 
     <releases> 
      <enabled>true</enabled> 
     </releases> 
     <snapshots> 
      <enabled>true</enabled> 
     </snapshots> 
    </pluginRepository> 
</pluginRepositories> 
<properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <maven.compiler.source>1.7</maven.compiler.source> 
    <maven.compiler.target>1.7</maven.compiler.target> 
</properties> 
<dependencies> 
    <dependency> 
     <groupId>org.postgresql</groupId> 
     <artifactId>postgresql</artifactId> 
     <version>9.2-1003-jdbc4</version> 
    </dependency> 
    <dependency> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
     <version>5.1.25</version> 
    </dependency>  
    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>javax.servlet-api</artifactId> 
     <version>3.0.1</version> 
     <scope>provided</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework</groupId> 
     <artifactId>spring-webmvc</artifactId> 
     <version>4.1.4.RELEASE</version> 
    </dependency> 
    <dependency> 
     <groupId>jstl</groupId> 
     <artifactId>jstl</artifactId> 
     <version>1.2</version> 
    </dependency> 
    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>servlet-api</artifactId> 
     <version>2.5</version> 
     <scope>provided</scope> 
    </dependency> 
    <dependency> 
     <groupId>com.fasterxml.jackson.core</groupId> 
     <artifactId>jackson-core</artifactId> 
     <version>2.4.1</version> 
    </dependency> 
    <dependency> 
     <groupId>com.fasterxml.jackson.core</groupId> 
     <artifactId>jackson-databind</artifactId> 
     <version>2.4.1.1</version> 
    </dependency> 
    <dependency> 
     <groupId>org.json</groupId> 
     <artifactId>json</artifactId> 
     <version>20090211</version> 
    </dependency> 
    <dependency> 
     <groupId>com.googlecode.json-simple</groupId> 
     <artifactId>json-simple</artifactId> 
     <version>1.1.1</version> 
    </dependency> 
</dependencies> 
<profiles> 
    <profile> 
     <id>openshift</id> 
     <build> 
      <finalName>happy</finalName> 
      <plugins> 
       <plugin> 
        <artifactId>maven-war-plugin</artifactId> 
        <version>2.1.1</version> 
        <configuration> 
         <outputDirectory>webapps</outputDirectory> 
         <warName>ROOT</warName> 
        </configuration> 
       </plugin> 
      </plugins> 
     </build> 
    </profile> 
</profiles> 

On line 73,66 ich verwendet habe Befehl String.Join(); Was kann ich tun, um das zu beheben? Ich habe eine Anwendung mit Tomcat 7 in OpenShift erstellt.

Answer 1

String.join hinzugefügt in Java8. Sie verwenden Java 7. Follow this Tutorial und

"export JAVA_HOME=/etc/alternatives/java_sdk_1.8.0" 

in Ihrem "action_hooks/Start" Skript. Siehe action hooks documentation