Java: version conflicts with WS
I have a JRE application. My dev-environment is 1.9, the target is 1.7.
It is managed with maven.
If my maven source and target is 8 then I get this error if I start the program at the target.
java.lang.UnsupportedClassVersionError: MYPRG/Server/Server : Unsupported major.minor version 52.0
It appears at the very beginning.
Thats ok I think. My target is an older than the dev.
So I changed to 7 in my pom.xml for target and source (also tried 1.7).
java.lang.UnsupportedClassVersionError: com/sun/xml/ws/spi/ProviderImpl : Unsupported major.minor version 52.0
Now the error occurs not at the very beginning but if I instance some JNI I think. I did not expect that.
Whats the reason and how can I overcome it (without updating the target)?
java
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
|
show 1 more comment
I have a JRE application. My dev-environment is 1.9, the target is 1.7.
It is managed with maven.
If my maven source and target is 8 then I get this error if I start the program at the target.
java.lang.UnsupportedClassVersionError: MYPRG/Server/Server : Unsupported major.minor version 52.0
It appears at the very beginning.
Thats ok I think. My target is an older than the dev.
So I changed to 7 in my pom.xml for target and source (also tried 1.7).
java.lang.UnsupportedClassVersionError: com/sun/xml/ws/spi/ProviderImpl : Unsupported major.minor version 52.0
Now the error occurs not at the very beginning but if I instance some JNI I think. I did not expect that.
Whats the reason and how can I overcome it (without updating the target)?
java
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
4
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
1
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
1
Runmvn dependency:treeto have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.
– user10639668
Nov 13 '18 at 9:12
1
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23
|
show 1 more comment
I have a JRE application. My dev-environment is 1.9, the target is 1.7.
It is managed with maven.
If my maven source and target is 8 then I get this error if I start the program at the target.
java.lang.UnsupportedClassVersionError: MYPRG/Server/Server : Unsupported major.minor version 52.0
It appears at the very beginning.
Thats ok I think. My target is an older than the dev.
So I changed to 7 in my pom.xml for target and source (also tried 1.7).
java.lang.UnsupportedClassVersionError: com/sun/xml/ws/spi/ProviderImpl : Unsupported major.minor version 52.0
Now the error occurs not at the very beginning but if I instance some JNI I think. I did not expect that.
Whats the reason and how can I overcome it (without updating the target)?
java
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
I have a JRE application. My dev-environment is 1.9, the target is 1.7.
It is managed with maven.
If my maven source and target is 8 then I get this error if I start the program at the target.
java.lang.UnsupportedClassVersionError: MYPRG/Server/Server : Unsupported major.minor version 52.0
It appears at the very beginning.
Thats ok I think. My target is an older than the dev.
So I changed to 7 in my pom.xml for target and source (also tried 1.7).
java.lang.UnsupportedClassVersionError: com/sun/xml/ws/spi/ProviderImpl : Unsupported major.minor version 52.0
Now the error occurs not at the very beginning but if I instance some JNI I think. I did not expect that.
Whats the reason and how can I overcome it (without updating the target)?
java
java
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
asked Nov 13 '18 at 9:00
chris01chris01
3,70821732
3,70821732
4
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
1
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
1
Runmvn dependency:treeto have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.
– user10639668
Nov 13 '18 at 9:12
1
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23
|
show 1 more comment
4
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
1
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
1
Runmvn dependency:treeto have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.
– user10639668
Nov 13 '18 at 9:12
1
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23
4
4
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
1
1
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
1
1
Run
mvn dependency:tree to have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.– user10639668
Nov 13 '18 at 9:12
Run
mvn dependency:tree to have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.– user10639668
Nov 13 '18 at 9:12
1
1
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23
|
show 1 more comment
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4
Maybe you have a dependency compiled with > 1.7 When the execution reaches that dependency code it raises exception.
– user10639668
Nov 13 '18 at 9:04
1
@EugenCovaci would that be com/sun/xml/ws/spi/ProviderImpl?
– keuleJ
Nov 13 '18 at 9:07
@keuleJ Could be.
– user10639668
Nov 13 '18 at 9:08
1
Run
mvn dependency:treeto have the list of all dependencies. If there are few, check them one by one. Otherwise use an IDE, maybe it gives you a hint. About the strategy, downgrading is not that simple.– user10639668
Nov 13 '18 at 9:12
1
The tree gives me the dependencies. But where do I see what version of a dependency is good for what version of JRE?
– chris01
Nov 13 '18 at 9:23