amitksingh Posted July 20, 2009 Share Posted July 20, 2009 Hi,I am trying to run Jasper Reports 3.5.1 with RAD 6.0 (jdk 1.4). While running the jfreechart sample, I am getting the exception as:[java] java.lang.UnsupportedClassVersionError: JFreeChartApp (Unsupported major.minor version 49.0)[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:172)[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:705)[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:177)[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)[java] at org.apache.tools.ant.Task.perform(Task.java:364)[java] at org.apache.tools.ant.Target.execute(Target.java:341)[java] at org.apache.tools.ant.Target.performTasks(Target.java:369)[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1214)[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1062)[java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:377)[java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:135)[java] Caused by: java.lang.UnsupportedClassVersionError: JFreeChartApp (Unsupported major.minor version 49.0)[java] at java.lang.ClassLoader.defineClass0(Native Method)[java] at java.lang.ClassLoader.defineClass(ClassLoader.java:800)[java] at org.apache.tools.ant.loader.AntClassLoader2.defineClassFromData(AntClassLoader2.java:76)[java] at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1073)[java] at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1137)[java] at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1090)[java] at org.apache.tools.ant.AntClassLoader.forceLoadClass(AntClassLoader.java:591)[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:114)[java] ... 11 more[java] --- Nested Exception ---[java] java.lang.UnsupportedClassVersionError: JFreeChartApp (Unsupported major.minor version 49.0)[java] at java.lang.ClassLoader.defineClass0(Native Method)[java] at java.lang.ClassLoader.defineClass(ClassLoader.java:800)[java] at org.apache.tools.ant.loader.AntClassLoader2.defineClassFromData(AntClassLoader2.java:76)[java] at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1073)[java] at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1137)[java] at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1090)[java] at org.apache.tools.ant.AntClassLoader.forceLoadClass(AntClassLoader.java:591)[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:114)[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:705)[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:177)[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:83)[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)[java] at org.apache.tools.ant.Task.perform(Task.java:364)[java] at org.apache.tools.ant.Target.execute(Target.java:341)[java] at org.apache.tools.ant.Target.performTasks(Target.java:369)[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1214)[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1062)[java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:377)[java] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:135) While I run the same thing using eclipse, its working fine. I can't switch to RAD 7 (jdk 1.5). Is there any way I can use Jasper Reports 3.5.1 with RAD 6.0. javac:compile: Link to comment Share on other sites More sharing options...
amitksingh Posted July 31, 2009 Author Share Posted July 31, 2009 I am using JR version 3.1.2 that supports jdk 1.4. Link to comment Share on other sites More sharing options...
Teodor Danciu Posted August 14, 2009 Share Posted August 14, 2009 Hi, How exactly do you run them? Do you first clean the compiled classes and compile them again?Something like: > ant clean javac compile fill view I hope this helps.Teodor Link to comment Share on other sites More sharing options...
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