We are currently using JasperReports Library 4.4.7 with JDK 1.6_23 on SAP NetWeaver 7.3 and we are planing to upgrade to 5.5.2, is it compatible with our environment JDK (1.6_23) since the library is compiled using JDK 1.7 ?
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If the library is compiled using JDK 1.7, it won't run on Java SE 6-compatible environment. You would need to compile it (and jar) yourself -- I don't know the library, but it's likely to fail. Perhaps they switched to Java 7 compilation to use Java 7 features.
You may also "downgrade" the compiled byte code of the library to be Java 6 compliant -- see Compiling Java 7 to Java 6 (I have no experience with that either).
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Piotr Findeisen
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