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Fix "Multiple builders are available" when syncing project in IDEA #17366

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Jun 8, 2021
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Fix "Multiple builders are available" when syncing project in IDEA #17366

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18 changes: 18 additions & 0 deletions ...n/java/org/gradle/tooling/provider/model/internal/DefaultToolingModelBuilderRegistry.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@

package org.gradle.tooling.provider.model.internal;

import com.google.common.collect.Iterators;
import org.gradle.api.Project;
import org.gradle.api.internal.GradleInternal;
import org.gradle.api.internal.project.ProjectInternal;
Expand All @@ -32,13 +33,30 @@
import org.gradle.tooling.provider.model.UnknownModelException;

import javax.annotation.Nullable;
import java.util.AbstractCollection;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public class DefaultToolingModelBuilderRegistry implements ToolingModelBuilderRegistry, ToolingModelBuilderLookup {
private final ToolingModelBuilderLookup parent;

private final List<RegistrationImpl> registrations = new ArrayList<>();
// This is a workaround for https://github.com/gradle/gradle/issues/17319. IDEA reads this field in an attempt to check if its Builder is already registered.
@SuppressWarnings({"unused", "MismatchedQueryAndUpdateOfCollection"})
private final Collection<ToolingModelBuilder> builders = new AbstractCollection<ToolingModelBuilder>() {
@Override
public Iterator<ToolingModelBuilder> iterator() {
return Iterators.transform(registrations.iterator(), RegistrationImpl::getBuilder);
}

@Override
public int size() {
return registrations.size();
}
};

private final BuildOperationExecutor buildOperationExecutor;
private final ProjectStateRegistry projectStateRegistry;
private final UserCodeApplicationContext userCodeApplicationContext;
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