Pleast update the copyright headers with a GPL derivative:

./jdk/make/com/sun/tracing/Makefile
./jdk/make/com/sun/tracing/dtrace/Makefile
./jdk/make/sun/tracing/Makefile
./jdk/make/sun/tracing/dtrace/Makefile
./jdk/make/sun/tracing/dtrace/mapfile-vers

GPL Guidelines:
http://openjdk.sfbay/space/start/openjdk-legal-notice-howto.html
The following files should also be addressed:

./jdk/src/share/classes/com/sun/tracing/Probe.java
./jdk/src/share/classes/com/sun/tracing/ProbeName.java
./jdk/src/share/classes/com/sun/tracing/Provider.java
./jdk/src/share/classes/com/sun/tracing/ProviderName.java
./jdk/src/share/classes/com/sun/tracing/dtrace/ArgsAttributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/Attributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/DependencyClass.java
./jdk/src/share/classes/com/sun/tracing/dtrace/FunctionAttributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/FunctionName.java
./jdk/src/share/classes/com/sun/tracing/dtrace/ModuleAttributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/ModuleName.java
./jdk/src/share/classes/com/sun/tracing/dtrace/NameAttributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/ProviderAttributes.java
./jdk/src/share/classes/com/sun/tracing/dtrace/StabilityLevel.java
./jdk/src/share/classes/com/sun/tracing/dtrace/package-info.java
./jdk/src/share/classes/com/sun/tracing/package-info.java
./jdk/src/share/classes/sun/tracing/MultiplexProviderFactory.java
./jdk/src/share/classes/sun/tracing/NullProviderFactory.java
./jdk/src/share/classes/sun/tracing/PrintStreamProviderFactory.java
./jdk/src/share/classes/sun/tracing/ProbeSkeleton.java
./jdk/src/share/classes/sun/tracing/ProviderSkeleton.java
./jdk/src/share/classes/sun/tracing/dtrace/Activation.java
./jdk/src/share/classes/sun/tracing/dtrace/DTraceProbe.java
./jdk/src/share/classes/sun/tracing/dtrace/DTraceProvider.java
./jdk/src/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java
./jdk/src/share/classes/sun/tracing/dtrace/JVM.java
./jdk/src/share/classes/sun/tracing/package-info.java
./jdk/src/share/native/sun/tracing/dtrace/JVM.c
./jdk/src/share/native/sun/tracing/dtrace/jvm_symbols.h
./jdk/src/solaris/native/sun/tracing/dtrace/jvm_symbols_md.c
./jdk/src/windows/native/sun/tracing/dtrace/jvm_symbols_md.c