fix: resolve missing CopyJavaDoc target

[kris-hansen]

This pull request addresses a build error encountered when enabling documentation generation for the FoundationDB project. The error is related to a missing CopyJavadoc target in the CMakeLists.txt file. The build error is as follows:

CMake Error at CMakeLists.txt:218 (add_dependencies):
  The dependency target "CopyJavadoc" of target "html" does not exist.

Solution: Added a custom target named CopyJavadoc that uses the cmake -E copy_directory command to copy Javadoc files from the sphinx directory to the build directory. This target is now correctly referenced as a dependency for the html target, ensuring that the build process completes successfully.

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• [ ] The PR has a description, explaining both the problem and the solution.
• [ ] The description mentions which forms of testing were done and the testing seems reasonable.
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• [ ] This change/bugfix is a cherry-pick from the next younger branch (younger release-branch or main if this is the youngest branch)
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[foundationdb-ci]

Result of foundationdb-pr-clang-arm on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:03:24
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=OFF -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:07
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=OFF -D BUILD_DOCUMENTATION=ON -DOPEN_FOR_IDE=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:10
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:20
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-macos-m1 on macOS Ventura 13.x

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:36:34
• Result: :white_check_mark: SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-macos on macOS Ventura 13.x

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:48:05
• Result: :white_check_mark: SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:51:06
• Result: :white_check_mark: SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)
• Cluster Test Logs zip file of the test logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang-arm on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:03:37
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=OFF -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:19
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:20
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=ON -D RUN_JUNIT_TESTS=ON -D RUN_JAVA_INTEGRATION_TESTS=ON -D BUILD_DOCUMENTATION=ON -D BUILD_AWS_BACKUP=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:04:22
• Result: :x: FAILED
• Error: Error while executing command: cmake -S . -B build_output -D USE_CCACHE=ON -D USE_WERROR=OFF -D BUILD_DOCUMENTATION=ON -DOPEN_FOR_IDE=ON -G Ninja. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[jzhou77]

CI failed with error:

CMake Error at documentation/CMakeLists.txt:70 (add_custom_target):
  add_custom_target cannot create target "CopyJavadoc" because another target
  with the same name already exists.  The existing target is a custom target
  created in source directory
  "/codebuild/output/src3024235942/src/github.com/apple/foundationdb/bindings/java".
  See documentation for policy CMP0002 for more details.

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: 8ab2de7ce4d56c230754b54a1a0344b0c42ef645
• Duration 0:37:45
• Result: :x: FAILED
• Error: Error while executing command: docker build --label "org.foundationdb.version=${FDB_VERSION}" --label "org.foundationdb.build_date=${BUILD_DATE}" --label "org.foundationdb.commit=${COMMIT_SHA}" --progress plain --build-arg FDB_VERSION="${FDB_VERSION}" --build-arg FDB_LIBRARY_VERSIONS="${FDB_VERSION}" --build-arg FDB_WEBSITE="${FDB_WEBSITE}" --tag foundationdb/base:${FDB_VERSION}-${COMMIT_SHA} --file Dockerfile --target base .. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)
• Cluster Test Logs zip file of the test logs (available for 30 days)

[saintstack]

Closing as can't reproduce. Please open new issue is still an issue.