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POPHP/Java Bridge UnsupportedClassVersionError
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  1. POPHP/Java Bridge UnsupportedClassVersionError
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    copied!<p>I need to run some java code on php so I found this </p> <pre><code>http://php-java-bridge.sourceforge.net/pjb/index.php </code></pre> <p>so I downloaded tomcat and put the JavaBridge.war in the webapps directory and I got the examples working (It took me a while to figure this out)</p> <p>I can even load built-in java stuff <code>Java("java.lang.System")</code> and run the example jars with my own PHP code. </p> <p>What I couldn't do was make my own jar and run it I tried a variety of different compilers (Eclipse,Netbeans,command-line) but this didn't help.</p> <p>I'm trying to do something like this <a href="http://www.developer.com/java/other/php-with-java-using-php-java-bridge-tutorial.html" rel="nofollow noreferrer">http://www.developer.com/java/other/php-with-java-using-php-java-bridge-tutorial.html</a></p> <p>Here is my java code:</p> <pre><code>package m1sk; /** * * @author M1sk */ public class Hello implements java.io.Serializable{ String hi() {return "This is my hello message";} String hello(String name) {return "Hello" + name;} } </code></pre> <p>php code:</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt; &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;?php require_once ("java/Java.inc"); // $t1 = new Java("java.lang.System"); //echo $t1-&gt;getProperties(); //this works $world = new java("m1sk.Hello"); // echo $world-&gt;hi(); echo "Hello Working Thingy\n\n"; ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>i put the jar in ...\tomcat\webapps\JavaBridge\WEB-INF\lib and the php file in ...\tomcat\webapps\JavaBridge</p> <p>and i get the following error when i test <code>http://localhost:8080/JavaBridge/mytest.php</code>:</p> <pre><code>javax.servlet.ServletException: java.lang.RuntimeException: PHP Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: CreateInstance failed: new m1sk.Hello. Cause: java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class m1sk.Hello) VM: 1.5.0_20@http://java.sun.com/" at: #-13 org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1854) #-12 org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:890) #-11 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1354) #-10 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) #-9 java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) #-8 java.lang.Class.forName0(Native Method) #-7 java.lang.Class.forName(Class.java:242) #-6 php.java.bridge.Util.classForName(Util.java:1518) #-5 php.java.bridge.JavaBridge.CreateObject(JavaBridge.java:445) #-4 php.java.bridge.Request.handleRequest(Request.java:458) #-3 php.java.bridge.Request.handleRequests(Request.java:500) #-2 php.java.bridge.http.C in C:\xampp\tomcat\webapps\JavaBridge\java\Java.inc on line 195 php.java.servlet.fastcgi.FastCGIServlet.handle(FastCGIServlet.java:499) php.java.servlet.fastcgi.FastCGIServlet.doGet(FastCGIServlet.java:521) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) php.java.servlet.PhpCGIFilter.doFilter(PhpCGIFilter.java:126) </code></pre> <p>I search the stack found this for my error: <a href="https://stackoverflow.com/questions/6066103/what-is-the-reason-for-unsupportedclassversionerror">What is the reason for UnsupportedClassVersionError?</a></p> <pre><code>C:\Users\M1sk\Desktop&gt;java -version java version "1.7.0_04" Java(TM) SE Runtime Environment (build 1.7.0_04-b22) Java HotSpot(TM) 64-Bit Server VM (build 23.0-b21, mixed mode) C:\Users\M1sk\Desktop&gt;javac -version javac 1.6.0_25 </code></pre> <p>the version are different but this should still work so I don't believe this is my problem</p>
 

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