JDK9 Automatic Modules and “Split Packages” Dependencies
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I am converting a java project to use modules. One of my modules depends on hamcrest library, and it needs both of the jar files hamcrest.core and hamcrest.library. These two jar files both have org.hamcrest package. So when my module wants to treat these two jars as automatic modules, it fails because two modules in a module-path cannot have packages with same name. I searched a lot and found some related stuff on stackoverflow. It seems that I have two reasonable options if I do not want to rebuild those dependencies:
- Merge the two jars into one jar using my build automation tool (which is maven).
- Somehow tell java compiler that these two jars should be treated as a single automatic module.
So here are my questions:
- Is any of these two options possible? If yes, how?
- Is there any better option?
Thanks in advance
java maven java-9 hamcrest java-module
asked Nov 11 at 3:37
Feri
110110
add a comment |
up vote
0
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I am converting a java project to use modules. One of my modules depends on hamcrest library, and it needs both of the jar files hamcrest.core and hamcrest.library. These two jar files both have org.hamcrest package. So when my module wants to treat these two jars as automatic modules, it fails because two modules in a module-path cannot have packages with same name. I searched a lot and found some related stuff on stackoverflow. It seems that I have two reasonable options if I do not want to rebuild those dependencies:
- Merge the two jars into one jar using my build automation tool (which is maven).
- Somehow tell java compiler that these two jars should be treated as a single automatic module.
So here are my questions:
- Is any of these two options possible? If yes, how?
- Is there any better option?
Thanks in advance
java maven java-9 hamcrest java-module
asked Nov 11 at 3:37
Feri
110110
3
The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am converting a java project to use modules. One of my modules depends on hamcrest library, and it needs both of the jar files hamcrest.core and hamcrest.library. These two jar files both have org.hamcrest package. So when my module wants to treat these two jars as automatic modules, it fails because two modules in a module-path cannot have packages with same name. I searched a lot and found some related stuff on stackoverflow. It seems that I have two reasonable options if I do not want to rebuild those dependencies:
- Merge the two jars into one jar using my build automation tool (which is maven).
- Somehow tell java compiler that these two jars should be treated as a single automatic module.
So here are my questions:
- Is any of these two options possible? If yes, how?
- Is there any better option?
Thanks in advance
java maven java-9 hamcrest java-module
asked Nov 11 at 3:37
Feri
110110
I am converting a java project to use modules. One of my modules depends on hamcrest library, and it needs both of the jar files hamcrest.core and hamcrest.library. These two jar files both have org.hamcrest package. So when my module wants to treat these two jars as automatic modules, it fails because two modules in a module-path cannot have packages with same name. I searched a lot and found some related stuff on stackoverflow. It seems that I have two reasonable options if I do not want to rebuild those dependencies:
- Merge the two jars into one jar using my build automation tool (which is maven).
- Somehow tell java compiler that these two jars should be treated as a single automatic module.
So here are my questions:
- Is any of these two options possible? If yes, how?
- Is there any better option?
Thanks in advance
java maven java-9 hamcrest java-module
java maven java-9 hamcrest java-module
asked Nov 11 at 3:37
Feri
110110
asked Nov 11 at 3:37
Feri
110110
asked Nov 11 at 3:37
Feri
110110
asked Nov 11 at 3:37
Feri
110110
asked Nov 11 at 3:37
Feri
110110
110110
3
The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34
add a comment |
3
The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34
3
3
The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
accepted
Ok I finally managed to solve it like this:
- Create a new maven module called
hamcrest-alland add dependencies onhamcrest-coreandhamcrest-library. - add
maven-assembly-pluginto this module withappendAssemblyIdset to false. - remove the dependency to
hamcrest-coreandhamcrest-libraryfrom other maven modules and instead add dependency tohamcrest-all. - exclude
hamcrest-coreandhamcrest-librarywhen including dependency tohamcrest-all.
What it actually does is that it unpacks hamcrest-core and hamcrest-library in the jar file created for hamrest-all. And because each jar file is treated as one module by JMPS, the problem is gone :)
answered Nov 15 at 23:27
Feri
110110
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
Ok I finally managed to solve it like this:
- Create a new maven module called
hamcrest-alland add dependencies onhamcrest-coreandhamcrest-library. - add
maven-assembly-pluginto this module withappendAssemblyIdset to false. - remove the dependency to
hamcrest-coreandhamcrest-libraryfrom other maven modules and instead add dependency tohamcrest-all. - exclude
hamcrest-coreandhamcrest-librarywhen including dependency tohamcrest-all.
What it actually does is that it unpacks hamcrest-core and hamcrest-library in the jar file created for hamrest-all. And because each jar file is treated as one module by JMPS, the problem is gone :)
answered Nov 15 at 23:27
Feri
110110
add a comment |
up vote
0
down vote
accepted
Ok I finally managed to solve it like this:
- Create a new maven module called
hamcrest-alland add dependencies onhamcrest-coreandhamcrest-library. - add
maven-assembly-pluginto this module withappendAssemblyIdset to false. - remove the dependency to
hamcrest-coreandhamcrest-libraryfrom other maven modules and instead add dependency tohamcrest-all. - exclude
hamcrest-coreandhamcrest-librarywhen including dependency tohamcrest-all.
What it actually does is that it unpacks hamcrest-core and hamcrest-library in the jar file created for hamrest-all. And because each jar file is treated as one module by JMPS, the problem is gone :)
answered Nov 15 at 23:27
Feri
110110
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
Ok I finally managed to solve it like this:
- Create a new maven module called
hamcrest-alland add dependencies onhamcrest-coreandhamcrest-library. - add
maven-assembly-pluginto this module withappendAssemblyIdset to false. - remove the dependency to
hamcrest-coreandhamcrest-libraryfrom other maven modules and instead add dependency tohamcrest-all. - exclude
hamcrest-coreandhamcrest-librarywhen including dependency tohamcrest-all.
What it actually does is that it unpacks hamcrest-core and hamcrest-library in the jar file created for hamrest-all. And because each jar file is treated as one module by JMPS, the problem is gone :)
answered Nov 15 at 23:27
Feri
110110
Ok I finally managed to solve it like this:
- Create a new maven module called
hamcrest-alland add dependencies onhamcrest-coreandhamcrest-library. - add
maven-assembly-pluginto this module withappendAssemblyIdset to false. - remove the dependency to
hamcrest-coreandhamcrest-libraryfrom other maven modules and instead add dependency tohamcrest-all. - exclude
hamcrest-coreandhamcrest-librarywhen including dependency tohamcrest-all.
What it actually does is that it unpacks hamcrest-core and hamcrest-library in the jar file created for hamrest-all. And because each jar file is treated as one module by JMPS, the problem is gone :)
answered Nov 15 at 23:27
Feri
110110
answered Nov 15 at 23:27
Feri
110110
answered Nov 15 at 23:27
Feri
110110
answered Nov 15 at 23:27
Feri
110110
110110
add a comment |
add a comment |
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The cleanest of all solutions would be to report and get it fixed in the library itself. Some links/reports useful in such cases -github.com/hamcrest/JavaHamcrest/issues/187, github.com/hamcrest/JavaHamcrest/issues/205
– nullpointer
Nov 11 at 5:18
That's right for sure but I am in hurry :)
– Feri
Nov 11 at 16:52
Did you try to let those jars remain on the classpath instead of modulepath to result into an unnamed module? Not sure though that would be something you're looking for.
– nullpointer
Nov 11 at 17:07
Unfortunately explicit module cannot read classpath. It says if the explicit module is treatd as unnamed module "TEMPORARILY", that would work but I've no idea what this even means!
– Feri
Nov 11 at 18:34