Hi
I am putting together an osgi enterprise framework from aries, because I want 
to use it in an eclipse rcp application. I am collecting the bundles from aries 
for the jndi, jpa, proxy, quiesce, transaction and util modules and their 
dependencies. For checking I run the framework like java -jar 
org.eclipse.osgi_3.13.0.v20180409-1500.jar -console

the collected bundles so far are:

Welcome to Apache Felix Gogo

g! ss                                                                           
                             10:58:49
"Framework is launched."


id      State       Bundle
0       ACTIVE      org.eclipse.osgi_3.13.0.v20180409-1500
                    Fragments=54
1       ACTIVE      org.eclipse.equinox.console_1.3.0.v20180119-0630
8       ACTIVE      org.apache.felix.gogo.runtime_1.1.0
9       ACTIVE      org.apache.felix.gogo.shell_1.0.0.v20170914-1324
10      ACTIVE      org.apache.felix.gogo.jline_1.1.0
11      ACTIVE      org.apache.felix.gogo.command_1.0.2
13      RESOLVED    org.jline_3.9.0
14      RESOLVED    org.apache.aries.jndi_1.0.0
15      RESOLVED    org.apache.aries.jndi.api_1.0.0
16      RESOLVED    org.apache.aries.jndi.core_1.0.0
17      RESOLVED    org.apache.aries.jndi.rmi_1.0.0
18      RESOLVED    org.apache.aries.jndi.url_1.0.0
19      RESOLVED    org.apache.aries.proxy_1.0.0
20      RESOLVED    org.apache.aries.proxy.api_1.0.0
21      RESOLVED    org.apache.aries.proxy.impl_1.0.0
26      RESOLVED    org.objectweb.asm_4.2.0
27      RESOLVED    org.objectweb.asm.commons_4.2.0
28      RESOLVED    org.objectweb.asm.tree_4.2.0
29      RESOLVED    slf4j.api_1.7.25
                    Fragments=31
31      RESOLVED    slf4j.nop_1.7.25
                    Master=29
32      RESOLVED    org.apache.log4j_1.2.13.v200706111418
33      RESOLVED    log4j.over.slf4j_1.7.25
34      RESOLVED    org.apache.aries.quiesce.api_1.0.0
35      RESOLVED    org.apache.aries.quiesce.manager_1.0.0
36      RESOLVED    org.apache.aries.transaction.jdbc_2.1.3
37      RESOLVED    org.apache.aries.transaction.jms_2.0.0
38      RESOLVED    org.apache.aries.transaction.manager_1.3.3
39      RESOLVED    org.apache.aries.transaction.wrappers_1.0.0
42      RESOLVED    org.osgi.service.cm_1.6.0.201802012106
50      RESOLVED    javax.enterprise.cdi-api_2.0.0
51      RESOLVED    javax.el-api_3.0.0
52      RESOLVED    org.apache.servicemix.bundles.javax-inject_1.0.0.3
53      RESOLVED    javax.interceptor-api_1.2.2
54      RESOLVED    javax.transaction_1.1.1.v201105210645
                    Master=0
55      RESOLVED    org.apache.aries.util_1.1.3
56      RESOLVED    org.glassfish.main.javaee-api.javax.jms_3.1.2.2
58      RESOLVED    org.apache.commons.pool_1.6.0
59      RESOLVED    org.glassfish.javax.resource_3.1.1
60      RESOLVED    org.apache.geronimo.components.geronimo-connector_3.1.4
61      RESOLVED    javax.validation.api_1.1.0.Final
62      INSTALLED   org.apache.aries.jpa.api_2.7.0
63      INSTALLED   org.apache.aries.jpa.container_2.7.0
64      INSTALLED   org.apache.aries.jpa.eclipselink.adapter_2.7.0
66      RESOLVED    org.osgi.service.jdbc_1.0.0.201505202023
67      RESOLVED    javax.persistence_2.0.6.v201308211412
68      RESOLVED    org.eclipse.persistence.oracle_2.5.0.v20130403-3bb7011
                    Master=71
69      RESOLVED    org.eclipse.persistence.jpa_2.5.0.v20130425-368d603
70      RESOLVED    org.eclipse.persistence.jpa.jpql_2.5.0.v20130425-368d603
71      RESOLVED    org.eclipse.persistence.core_2.5.0.v20130425-368d603
                    Fragments=68
72      RESOLVED    org.eclipse.persistence.asm_3.3.1.v201302191223
73      RESOLVED    org.eclipse.persistence.antlr_3.2.0.v201302191141
74      RESOLVED    javax.persistence_2.1.0.v201304241213

As you can see, I have two persistence api bundles (67, 74).

The bundles 64, 63, and 62 are not resolved due to missing Require-Capability. 
I searched the web for information about osgi.contract and require-capability 
(provide-capability), but to be honest, I do not really understand the concept, 
though it should simplify the dependency management. What am I to do to resolve 
the following requirements?


g! diag 64                                                                      
                             10:58:49
org.apache.aries.jpa.eclipselink.adapter [64]
  Unresolved requirement: Require-Capability: osgi.contract; 
filter:="(&(osgi.contract=JavaJPA)(|(version=2)(version=2.1))(!(version>=2.2)))"

g! diag 63                                                                      
                             10:59:05
org.apache.aries.jpa.container [63]
  Unresolved requirement: Require-Capability: osgi.contract; 
filter:="(&(osgi.contract=JavaJPA)(|(version=2)(version=2.1))(!(version>=2.2)))"

g! diag 62                                                                      
                             10:59:20
org.apache.aries.jpa.api [62]
  Unresolved requirement: Require-Capability: osgi.contract; 
osgi.contract="JavaJPA"; filter:="(&(osgi.contract=JavaJPA)(version=2.0.0))"

Thank you

Christian

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