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From "Rick Hillegas (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5485) Simplify PropertySetter so that it is less brittle and easier to maintain.
Date Fri, 28 Oct 2011 15:53:32 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Rick Hillegas updated DERBY-5485:

    Attachment: derby-5485-01-af-simplifyPlusJavadoc.diff

Attaching derby-5485-01-af-simplifyPlusJavadoc.diff. This patch simplifies PropertySetter
as described above. PropertySetter still achieves goals (1) and (2) but abandons goal (3).

I have successfully compiled the Derby code and built the javadoc in the following environments:

o Oracle JDK 6 and 7 on Mac OS X

o Oracle JDK 6 and 7 on Ubuntu

o IBM JDK 6 and 7 on Ubuntu

I would appreciate test-drives from people who build on the following platforms. Thanks!

o Oracle JDKs on Solaris

o Oracle JDKs on Windows

o IBM JDKs on Windows

The patch involves a wholesale revamping of PropertySetter:

a) Support for JDK 1.4 is removed because 10.9 does not support that platform.

b) PropertySetter still tries to set the java${version}compile.classpath properties from the
j${version}lib properties where ${version} is 15, 16, and 17.

c) PropertySetter also tries to set java${version}compile.classpath where ${version} is the
version of the currently executing JVM. This is done by wiring together all of the jar files
in the directories which contain the jars which contain java.lang.String and java.util.Vector.

d) However, PropertySetter does NOT try to set java${version}compile.classpath if j${version}lib
is not set and if ${version} is not the version of the currently executing JVM.

In addition, this patch changes the master build script as follows:

e) References to j14lib and java14compile.classpath are removed. If not set, the jsr169compile.classpath
is set based on java15compile.classpath rather than java14compile.classpath.

f) java16compile.classpath is removed from the classpath of the derbydocs target so that the
javadoc build will work with IBM JDK 7.

In addition, this patch removes all other references to java14compile.classpath in the other
subordinate build scripts. I did not also change the source and target rev levels of the affected
targets. Those targets still require source and target to be 14 rather than 15. Changing the
source and target rev levels results in many "unchecked exception" warnings. These can probably
be suppressed but the right solution might be to actually fix the Derby code. That effort
falls outside the scope of this JIRA. Until the source and target rev levels are changed,
we will not be able to use Java 5 language features in the code compiled by the affected targets.

Touches the following files:


M       java/build/org/apache/derbyPreBuild/PropertySetter.java

Revamps this task as described above.


M       java/tools/org/apache/derby/impl/tools/build.xml
M       java/storeless/build.xml
M       java/demo/toursdb/build.xml
M       java/demo/build.xml
M       java/engine/org/apache/derby/impl/jdbc/build.xml
M       java/engine/org/apache/derby/impl/services/build.xml
M       java/engine/org/apache/derby/impl/io/build.xml
M       java/engine/org/apache/derby/impl/store/build.xml
M       java/engine/org/apache/derby/osgi/build.xml
M       java/engine/org/apache/derby/iapi/jdbc/build.xml
M       java/engine/org/apache/derby/iapi/services/crypto/build.xml
M       java/engine/org/apache/derby/iapi/types/build.xml
M       java/engine/org/apache/derby/iapi/store/build.xml
M       java/engine/org/apache/derby/iapi/reference/build.xml
M       java/engine/org/apache/derby/jdbc/build.xml
M       java/engine/org/apache/derby/vti/build.xml
M       java/shared/build.xml
M       java/drda/org/apache/derby/impl/drda/build.xml
M       java/drda/org/apache/derby/drda/build.xml
M       java/testing/org/apache/derbyTesting/unitTests/build.xml
M       java/testing/org/apache/derbyTesting/system/nstest/build.xml
M       java/testing/org/apache/derbyTesting/system/optimizer/build.xml
M       java/testing/org/apache/derbyTesting/system/oe/build.xml
M       java/testing/org/apache/derbyTesting/system/mailjdbc/build.xml
M       java/testing/org/apache/derbyTesting/system/sttest/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/i18n/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/lang/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/largedata/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/replicationTests/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/jdbcapi/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/perf/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/store/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/tools/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/memory/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/upgradeTests/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/junitTests/compatibility/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/derbynet/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/tests/memorydb/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/harness/build.xml
M       java/testing/org/apache/derbyTesting/functionTests/util/build.xml
M       java/testing/org/apache/derbyTesting/junit/build.xml
M       java/testing/org/apache/derbyTesting/perf/build.xml
M       java/client/build.xml
M       build.xml

Removes java14compile.classpath references as described above.


M       BUILDING.html

Removes references to JDK 1.4 from this summary document.

> Simplify PropertySetter so that it is less brittle and easier to maintain.
> --------------------------------------------------------------------------
>                 Key: DERBY-5485
>                 URL: https://issues.apache.org/jira/browse/DERBY-5485
>             Project: Derby
>          Issue Type: Improvement
>          Components: Build tools
>    Affects Versions:
>            Reporter: Rick Hillegas
>         Attachments: derby-5485-01-af-simplifyPlusJavadoc.diff
> The PropertySetter task sets up classpath variables so that the build can take advantage
of JVM-specific class libraries. Using those libraries makes it possible for the compiler
to flag code which is supposed to run on less capable platforms but which calls methods from
later JVMs. This is a very tricky problem and we seem to have reached consensus that it requires
too much effort to make PropertySetter run correctly in all of the build environments which
Derby developers use. I will attach a proposal for how to simplify PropertySetter so that
it requires less effort to maintain.

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