Javacpp does not export package required by presets #483
Description
Presets such as the openblas preset in recent versions inherit from org.bytedeco.javacpp.presets.javacpp:
@Properties(inherit = javacpp.class, global = "org.bytedeco.openblas.global.openblas_nolapack", value = {
...
public class openblas_nolapack implements LoadEnabled, InfoMapper {
In an OSGI context, this leads to a ClassNotFoundException being thrown as part of loading the class annotations:
java.lang.ClassNotFoundException: org.bytedeco.javacpp.presets.javacpp cannot be found by <MY-BUNDLE>
I only discover the above exception by putting a breakpoint in the constructor of the TypeNotPresentExceptionProxy...
Otherwise, here is a stack trace showing the annotation loading:
Thread [AsyncThread-1] (Suspended (breakpoint at line 41 in TypeNotPresentExceptionProxy))
owns: Nd4j (id=180)
owns: ConcurrentHashMap$ReservationNode<K,V> (id=181)
TypeNotPresentExceptionProxy.<init>(String, Throwable) line: 41
AnnotationParser.parseClassValue(ByteBuffer, ConstantPool, Class<?>) line: 429
AnnotationParser.parseClassArray(int, ByteBuffer, ConstantPool, Class<?>) line: 724
AnnotationParser.parseArray(Class<?>, ByteBuffer, ConstantPool, Class<?>) line: 531
AnnotationParser.parseMemberValue(Class<?>, ByteBuffer, ConstantPool, Class<?>) line: 355
AnnotationParser.parseAnnotation2(ByteBuffer, ConstantPool, Class<?>, boolean, Class<Annotation>[]) line: 286
AnnotationParser.parseAnnotations2(byte[], ConstantPool, Class<?>, Class<Annotation>[]) line: 120
AnnotationParser.parseAnnotations(byte[], ConstantPool, Class<?>) line: 72
Class<T>.createAnnotationData(int) line: 3521
Class<T>.annotationData() line: 3510
Class<T>.createAnnotationData(int) line: 3526
Class<T>.annotationData() line: 3510
Class<T>.createAnnotationData(int) line: 3526
Class<T>.annotationData() line: 3510
Class<T>.getAnnotation(Class<A>) line: 3415
Loader.checkPlatform(Class<?>, Properties) line: 1010
Loader.load(Class, Properties, boolean) line: 1161
Loader.load() line: 1123
Nd4jCpu.<clinit>() line: 13
Class<T>.forName0(String, boolean, ClassLoader, Class<?>) line: not available [native method]
Class<T>.forName(String) line: 264
NativeOpsHolder.<init>() line: 85
NativeOpsHolder.<clinit>() line: 35
NativeOpExecutioner.<init>() line: 91
NativeConstructorAccessorImpl.newInstance0(Constructor<?>, Object[]) line: not available [native method]
NativeConstructorAccessorImpl.newInstance(Object[]) line: 62
DelegatingConstructorAccessorImpl.newInstance(Object[]) line: 45
Constructor<T>.newInstance(Object...) line: 423
Class<T>.newInstance() line: 442
Nd4j.initWithBackend(Nd4jBackend) line: 5215
Nd4j.initContext() line: 5129
Nd4j.<clinit>() line: 226
...
As far as I can tell is because the org.bytedeco.javacpp.presets is actually not exported from the JavaCPP JAR:
Export-Package: org.bytedeco.javacpp;uses:="org.bytedeco.javacpp.annot
ation";version="1.5.5",org.bytedeco.javacpp.annotation;version="1.5.5
",org.bytedeco.javacpp.indexer;uses:="org.bytedeco.javacpp";version="
1.5.5",org.bytedeco.javacpp.tools;uses:="javax.management";version="1
.5.5"
Unfortunately, the 1.5.2 JavaCPP also hast some issue with OSGi that I currently do not remember. So I have to combine JavaCPP 1.5.4 with openblas 0.3.7-1.5.2 because the latter is the last version that comes without the inherit = javacpp.class... but of course then I get warnings telling me that it is probably a bad idea to mix JavaCPP 1.5.4 with a lib that was build against the older 1.5.2 version.