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What is the difference in properties java.runtime.version and java.version

6

For logging purposes I'm getting the Java version written in log while Java program is running.

I found out that I can get the version with

System.getProperty("java.runtime.version") -> 1.8.0_202-b08

and

System.getProperty("java.version") -> 1.8.0_202

Result obviously is missing the "build" information in other but are there any other difference besides the result? Any certain cases when I should be using the first option rather than the second?

java

share|improve this question

asked 12 hours ago

JokkeriJokkeri

15815

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I’m not sure you can rely on java.runtime.version anymore, considering it is not documented. I would avoid it altogether.
  
  – VGR
  11 hours ago
  

  
  
  
  

add a comment | 

6

For logging purposes I'm getting the Java version written in log while Java program is running.

I found out that I can get the version with

System.getProperty("java.runtime.version") -> 1.8.0_202-b08

and

System.getProperty("java.version") -> 1.8.0_202

Result obviously is missing the "build" information in other but are there any other difference besides the result? Any certain cases when I should be using the first option rather than the second?

java

share|improve this question

asked 12 hours ago

JokkeriJokkeri

15815

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I’m not sure you can rely on java.runtime.version anymore, considering it is not documented. I would avoid it altogether.
  
  – VGR
  11 hours ago
  

  
  
  
  

add a comment | 

For logging purposes I'm getting the Java version written in log while Java program is running.

I found out that I can get the version with

System.getProperty("java.runtime.version") -> 1.8.0_202-b08

and

System.getProperty("java.version") -> 1.8.0_202

Result obviously is missing the "build" information in other but are there any other difference besides the result? Any certain cases when I should be using the first option rather than the second?

java

share|improve this question

asked 12 hours ago

JokkeriJokkeri

15815

System.getProperty("java.runtime.version") -> 1.8.0_202-b08

System.getProperty("java.version") -> 1.8.0_202

share|improve this question

asked 12 hours ago

JokkeriJokkeri

15815

share|improve this question

asked 12 hours ago

JokkeriJokkeri

15815

asked 12 hours ago

JokkeriJokkeri

15815

asked 12 hours ago

JokkeriJokkeri

15815

3 Answers
3

active

oldest

votes

4

System Property Name | System Property Content | Where Displayed in java version Output
---------------------|--------------------------|---------------------------------------
java.version | product version | Line one displays the product version
---------------------|--------------------------|---------------------------------------
java.runtime.version | product version | Line one displays the product version
 | product build identifier | Line two displays the build identifier

See J2SE SDK/JRE Version String Naming Convention

share|improve this answer

edited 11 hours ago

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

add a comment | 

4

java.version is a product version information of Java Runtime environment(JRE). JRE is an implementation of the Java Virtual Machine which actually executes Java programs.

java.runtime.version is a product version along with build identifier of JRE.

share|improve this answer

edited 11 hours ago

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

add a comment | 

3

One is JDK version, java.version and as the name suggest other is JRE version, R for the runtime

share|improve this answer

answered 12 hours ago

Rohail UsmanRohail Usman

447

add a comment | 

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4

System Property Name | System Property Content | Where Displayed in java version Output
---------------------|--------------------------|---------------------------------------
java.version | product version | Line one displays the product version
---------------------|--------------------------|---------------------------------------
java.runtime.version | product version | Line one displays the product version
 | product build identifier | Line two displays the build identifier

See J2SE SDK/JRE Version String Naming Convention

share|improve this answer

edited 11 hours ago

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

add a comment | 

4

System Property Name | System Property Content | Where Displayed in java version Output
---------------------|--------------------------|---------------------------------------
java.version | product version | Line one displays the product version
---------------------|--------------------------|---------------------------------------
java.runtime.version | product version | Line one displays the product version
 | product build identifier | Line two displays the build identifier

See J2SE SDK/JRE Version String Naming Convention

share|improve this answer

edited 11 hours ago

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

add a comment | 

System Property Name | System Property Content | Where Displayed in java version Output
---------------------|--------------------------|---------------------------------------
java.version | product version | Line one displays the product version
---------------------|--------------------------|---------------------------------------
java.runtime.version | product version | Line one displays the product version
 | product build identifier | Line two displays the build identifier

See J2SE SDK/JRE Version String Naming Convention

share|improve this answer

edited 11 hours ago

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

System Property Name | System Property Content | Where Displayed in java version Output
---------------------|--------------------------|---------------------------------------
java.version | product version | Line one displays the product version
---------------------|--------------------------|---------------------------------------
java.runtime.version | product version | Line one displays the product version
 | product build identifier | Line two displays the build identifier

share|improve this answer

edited 11 hours ago

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

answered 12 hours ago

fantaghiroccofantaghirocco

3,80452738

4

java.version is a product version information of Java Runtime environment(JRE). JRE is an implementation of the Java Virtual Machine which actually executes Java programs.

java.runtime.version is a product version along with build identifier of JRE.

share|improve this answer

edited 11 hours ago

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

add a comment | 

4

java.version is a product version information of Java Runtime environment(JRE). JRE is an implementation of the Java Virtual Machine which actually executes Java programs.

java.runtime.version is a product version along with build identifier of JRE.

share|improve this answer

edited 11 hours ago

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

add a comment | 

java.version is a product version information of Java Runtime environment(JRE). JRE is an implementation of the Java Virtual Machine which actually executes Java programs.

java.runtime.version is a product version along with build identifier of JRE.

share|improve this answer

edited 11 hours ago

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

share|improve this answer

edited 11 hours ago

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

answered 12 hours ago

Aniket SahrawatAniket Sahrawat

6,24821339

3

One is JDK version, java.version and as the name suggest other is JRE version, R for the runtime

share|improve this answer

answered 12 hours ago

Rohail UsmanRohail Usman

447

add a comment | 

3

One is JDK version, java.version and as the name suggest other is JRE version, R for the runtime

share|improve this answer

answered 12 hours ago

Rohail UsmanRohail Usman

447

add a comment | 

One is JDK version, java.version and as the name suggest other is JRE version, R for the runtime

share|improve this answer

answered 12 hours ago

Rohail UsmanRohail Usman

447

share|improve this answer

answered 12 hours ago

Rohail UsmanRohail Usman

447

answered 12 hours ago

Rohail UsmanRohail Usman

447

answered 12 hours ago

Rohail UsmanRohail Usman

447