Access restriction on class due to restriction on required library rt jar

Question

I m attempting to compile Java 1 4 code that was created by IBM s WSDL2Java on Java5 without recreating the stubs and saw this error in Eclipse  I m under the assumption that the stubs generated should just compile as long as the runtime jars are available  they are    Access restriction  The type QName is not accessible due to restriction on required library C  Program Files Java jdk1 5 0 16 jre lib rt jar  The full class name is javax xml namespace QName     What exactly is going on here  Is this a case where I am trying to refactor a pig from sausage  Am I better off recreating the stubs

User · Answer

In my case there was a mismatch between the build path JRE and installed JRE on execution environment. I moved into Project > Properties > Java compiler. There was a warning message at the bottom.

I clicked on the links 'Installed JRE', 'Execution environment', 'Java build path' and changed the JDK version to 1.7 and the warning disappeared.

User · Answer

Go to the Build Path settings in the project properties  Windows - gt  Preferences - gt  Java Compiler Remove the JRE System Library Add another JRE with a  perfect match  clean and build your project again  It worked for me

User · Answer

Just change the order of build path libraries of your project  Right click on project Build Path  Configure Build Path Select Order and Export Tab  Change the order of the entries  I hope moving the  JRE System library  to the bottom will work  It worked so for me  Easy and simple

User · Answer

I met the same problem  I found the answer in the website http   www 17ext com  First delete the JRE System Libraries  Then import JRE System Libraries again     I don t know why However it fixed my problem hope it can help you

User · Answer

Go to the Java Build Path in the project properties  Remove the existing JRE System Library  Then Add it again i e  Add Library-- JRE Lib--select jre--- Finish  Lastly select order and export tab select JRE Lib and move on top  That s it

User · Answer

Sorry for updating an old POST  I got the reported problem and I solved it as said below   Assuming you are using Eclipse   m2e maven plugin  if you get this access restriction error  right click on the project module in which you have the error --  Properties --  Build Path --  Library --  Replace JDK JRE to the one that is used in eclipse workspace   I followed the above steps and the issue is resolved

User · Answer

I just had this problem too  Apparently I had set the JRE to 1 5 instead of 1 6 in my build path

User · Answer

I have been getting this error too  but my project is built on the command line using Maven and the tycho compiler  it s a set of OSGi plugins   After masses of sifting through people having the same problem but fixing it in Eclipse rather than on the command line  I found a message on the Tycho developer forum that answered my question  using configuration in pom xml to ignore the compiler warning about the access restriction    lt plugin gt       lt groupId gt org eclipse tycho lt  groupId gt       lt artifactId gt tycho-compiler-plugin lt  artifactId gt       lt version gt   tycho version  lt  version gt       lt configuration gt           lt compilerArgument gt -warn  discouraged forbidden lt  compilerArgument gt       lt  configuration gt   lt  plugin gt    More information can be found in the Tycho FAQ  This took me AGES to work out  so I figured I would assist anyone else trying to fix these access restriction errors from the command line by posting this answer

User · Answer

Adding a right JRE System through build path is the solution but your eclipse still may have the error  To solve that go to Java Build path --  Order and Export and move your JRE system library on the top  This has solved my problem

User · Answer

http   www digizol com 2008 09 eclipse-access-restriction-on-library html worked best for me    On Windows  Windows -  Preferences -  Java -  Compiler -  Errors Warnings -  Deprecated and restricted API -  Forbidden reference  access rules   -  change to warning  On Mac OS X Linux  Eclipse -  Preferences -  Java -  Compiler -  Errors Warnings -  Deprecated and restricted API -  Forbidden reference  access rules   -  change to warning

User · Answer

In the case you are sure that you should be able to access given class  than this can mean you added several jars to your project containing classes with identical names  or paths  but different content and they are overshadowing each other  typically an old custom build jar contains built-in older version of a 3rd party library    For example when you add a jar implementing   a b c d1 a b c d2   but also an older version implementing only   a b c d1  d2 is missing altogether or has restricted access    Everything works fine in the code editor but fails during the compilation if the  old  library overshadows the new one - d2 suddenly turns out  missing or inaccessible  even when it is there   The solution is a to check the order of compile-time libraries and make sure that the one with correct implementation goes first

User · Answer

for me this how I solve it    go to the build path of the current project   under Libraries   select the  JRE System Library  jdk1 8xxx   click edit and select either  Workspace default JRE jdk1 8xx   OR Alternate JRE Click finish Click OK     Note  make sure that in Eclipse   Preferences  NOT the project    Java   Installed JRE   that the jdk points to the JDK folder not the JRE C  Program Files Java jdk1 8 0 74

User · Answer

My guess is that you are trying to replace a standard class which ships with Java 5 with one in a library you have   This is not allowed under the terms of the license agreement  however AFAIK it wasn t enforced until Java 5   I have seen this with QName before and I  fixed  it by removing the class from the jar I had   EDIT http   www manpagez com man 1 java  notes for the option  -Xbootclasspath      Applications that use this option for the purpose of overriding a class in rt jar should not be deployed as doing  so would contravene the Java 2 Runtime Environment binary code license    The http   www idt mdh se rc sumo aJile Uppackat jre LICENSE    Java Technology Restrictions  You may not modify the Java Platform Interface   JPI   identified as classes contained within the  java  package or any subpackages of the  java  package   by creating additional classes within the JPI or otherwise causing the addition to or modification of the classes in the JPI   In the event that you create an additional class and associated API s  which  i  extends the functionality of the Java platform  and  ii  is exposed to third party software developers for the purpose of developing additional software which invokes such additional API  you must promptly publish broadly an accurate specification for such API for free use by all developers   You may not create  or authorize your licensees to create  additional classes  interfaces  or subpackages that are in any way identified as  java    javax    sun  or similar convention as specified by Sun in any naming convention designation

User · Answer

There s another solution that also works      Go to the Build Path settings in the project properties  Remove the JRE System Library Add it back  Select  Add Library  and select the JRE System Library  The default worked for me    This works because you have multiple classes in different jar files  Removing and re-adding the JRE lib will make the right classes be first  If you want a fundamental solution make sure you exclude the jar files with the same classes   For me I have  javax xml soap SOAPPart in three different jars  axis-saaj-1 4 jar  saaj-api-1 3 jar and the rt jar

User · Answer

In addition to Nels Beckman s solution  I have the following tips   Under Configure Build Path  I had to rearrange the order of my entries under Order and Export   Additionally  as an Eclipse PDE developer  I needed to rearrange the order of my dependencies in my MANIFEST MF  adding the problematic package as first on the list   Playing with these dials  along with running Project   Clean in between  I was able to resolve these warnings

[java] Access restriction on class due to restriction on required library rt.jar?

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